rfc9642.original.xml   rfc9642.xml 
<?xml version='1.0' encoding='utf-8'?> <?xml version='1.0' encoding='UTF-8'?>
<!-- draft submitted in xml v3 -->
<!DOCTYPE rfc [ <!DOCTYPE rfc [
<!ENTITY nbsp "&#160;"> <!ENTITY nbsp "&#160;">
<!ENTITY zwsp "&#8203;"> <!ENTITY zwsp "&#8203;">
<!ENTITY nbhy "&#8209;"> <!ENTITY nbhy "&#8209;">
<!ENTITY wj "&#8288;"> <!ENTITY wj "&#8288;">
]> ]>
<?rfc toc="yes"?>
<?rfc symrefs="yes"?> <rfc xmlns:xi="http://www.w3.org/2001/XInclude" category="std" consensus="true"
<?rfc sortrefs="yes" ?> submissionType="IETF" ipr="trust200902" docName="draft-ietf-netconf-keystore-35"
<?rfc compact="yes"?> number="9642" obsoletes="" updates="" xml:lang="en" tocInclude="true" symRefs="
<?rfc subcompact="no"?> true" sortRefs="true" version="3">
<?rfc linkmailto="no" ?>
<?rfc editing="no" ?>
<?rfc comments="yes" ?>
<?rfc inline="yes"?>
<?rfc rfcedstyle="yes"?>
<?rfc-ext allow-markup-in-artwork="yes" ?>
<?rfc-ext include-index="no" ?>
<!--<?rfc strict="no"?> -->
<rfc xmlns:xi="http://www.w3.org/2001/XInclude" category="std" consensus="true"
submissionType="IETF" ipr="trust200902" docName="draft-ietf-netconf-keystore-35"
tocInclude="true" symRefs="true" sortRefs="true" version="3">
<!-- xml2rfc v2v3 conversion 3.17.4 -->
<front> <front>
<title>A YANG Data Model for a Keystore and Keystore Operations</title> <title abbrev="A YANG Data Model for a Keystore">A YANG Data Model for a Key
<seriesInfo name="Internet-Draft" value="draft-ietf-netconf-keystore-35"/> store</title>
<seriesInfo name="RFC" value="9642"/>
<author initials="K." surname="Watsen" fullname="Kent Watsen"> <author initials="K." surname="Watsen" fullname="Kent Watsen">
<organization>Watsen Networks</organization> <organization>Watsen Networks</organization>
<address> <address>
<email>kent+ietf@watsen.net</email> <email>kent+ietf@watsen.net</email>
</address> </address>
</author> </author>
<date/> <date month="October" year="2024"/>
<area>Operations</area> <area>OPS</area>
<workgroup>NETCONF Working Group</workgroup> <workgroup>netconf</workgroup>
<abstract> <abstract>
<t>This document presents a YANG module called "ietf-keystore" <t>This document presents a YANG module called "ietf-keystore"
that enables centralized configuration of both symmetric and that enables centralized configuration of both symmetric and
asymmetric keys. The secret value for both key types may be asymmetric keys. The secret value for both key types may be
encrypted or hidden. Asymmetric keys may be associated with encrypted or hidden. Asymmetric keys may be associated with
certificates. Notifications are sent when certificates are certificates. Notifications are sent when certificates are
about to expire.</t> about to expire.</t>
</abstract> </abstract>
<note>
<name>Editorial Note (To be removed by RFC Editor)</name>
<t>This draft contains placeholder values that need to be replaced
with finalized values at the time of publication. This note summarize
s
all of the substitutions that are needed. No other RFC Editor
instructions are specified elsewhere in this document.</t>
<t>Artwork in this document contains shorthand references to drafts in
progress. Please apply the following replacements:
</t>
<ul spacing="normal">
<li>
<tt>AAAA</tt> --&gt; the assigned RFC value for draft-ietf-netconf-cry
pto-types</li>
<li>
<tt>CCCC</tt> --&gt; the assigned RFC value for this draft</li>
</ul>
<t>Artwork in this document contains placeholder values for the date of pu
blication of this
draft. Please apply the following replacement:
</t>
<ul spacing="normal">
<li>
<tt>2024-03-16</tt> --&gt; the publication date of this draft</li>
</ul>
<t>The "Relation to other RFCs" section <xref target="collective-effort"/>
contains
the text "one or more YANG modules" and, later, "modules". This text
is sourced
from a file in a context where it is unknown how many modules a draft
defines.
The text is not wrong as is, but it may be improved by stating more di
rectly how
many modules are defined.</t>
<t>The "Relation to other RFCs" section <xref target="collective-effort"/>
contains
a self-reference to this draft, along with a corresponding reference i
n
the Appendix. Please replace the self-reference in this section with
"This RFC"
(or similar) and remove the self-reference in the "Normative/Informati
ve References"
section, whichever it is in.</t>
<t>Tree-diagrams in this draft may use the '\' line-folding mode defined i
n RFC 8792.
However, nicer-to-the-eye is when the '\\' line-folding mode is used.
The AD suggested
suggested putting a request here for the RFC Editor to help convert "u
gly" '\' folded
examples to use the '\\' folding mode. "Help convert" may be interpre
ted as, identify
what looks ugly and ask the authors to make the adjustment.</t>
<t>The following Appendix section is to be removed prior to publication:
</t>
<ul spacing="normal">
<li>
<xref target="change-log"/>. Change Log</li>
</ul>
</note>
</front> </front>
<middle> <middle>
<section> <section>
<name>Introduction</name> <name>Introduction</name>
<t>This document presents a YANG 1.1 <xref target="RFC7950"/> module call ed <t>This document presents a YANG 1.1 <xref target="RFC7950"/> module call ed
"ietf-keystore" that enables centralized configuration of both symmetr ic "ietf-keystore" that enables centralized configuration of both symmetr ic
and asymmetric keys. The secret value for both key types may be and asymmetric keys. The secret value for both key types may be
encrypted or hidden (see <xref target="I-D.ietf-netconf-crypto-types"/ >). encrypted or hidden (see <xref target="RFC9640"/>).
Asymmetric keys may be associated with certificates. Notifications ar e Asymmetric keys may be associated with certificates. Notifications ar e
sent when certificates are about to expire.</t> sent when certificates are about to expire.</t>
<t>The "ietf-keystore" module defines many "grouping" statements <t>The "ietf-keystore" module defines many "grouping" statements
intended for use by other modules that may import it. For instance, intended for use by other modules that may import it. For instance,
there are groupings that define enabling a key to be either configured there are groupings that define enabling a key to be configured
inline (within the defining data model) or as a reference to a key either inline (within the defining data model) or as a reference to a
key
in the central keystore. in the central keystore.
</t> </t>
<t>Special consideration has been given for servers that have cryptographi c <t>Special consideration has been given for servers that have cryptographi c
hardware, such as a Trusted Platform Module (TPM). These servers are hardware, such as a trusted platform module (TPM). These servers are
unique in that the cryptographic hardware hides the secret key values. unique in that the cryptographic hardware hides the secret key values.
Additionally, such hardware is commonly initialized when manufactured Additionally, such hardware is commonly initialized when manufactured
to protect a "built-in" asymmetric key for which its public half is to protect a "built-in" asymmetric key for which its public half is
conveyed in an identity certificate (e.g., an IDevID conveyed in an identity certificate (e.g., an Initial Device Identifie
<xref target="Std-802.1AR-2018"/> certificate). Please see r (IDevID)
<xref target="built-ins"/> to see how built-in keys are supported.</t> <xref target="Std-802.1AR-2018"/> certificate). See how built-in keys
are
supported in <xref target="built-ins"/>.</t>
<t>This document is intended to reflect existing practices that many <t>This document is intended to reflect existing practices that many
server implementations support at the time of writing. To simplify server implementations support at the time of writing. To simplify
implementation, advanced key formats may be selectively implemented.</ t> implementation, advanced key formats may be selectively implemented.</ t>
<t>Implementations may utilize operating-system level <t>Implementations may utilize operating-system level
keystore utilities (e.g., "Keychain Access" on MacOS) and/or cryptogra phic keystore utilities (e.g., "Keychain Access" on MacOS) and/or cryptogra phic
hardware (e.g., TPMs).</t> hardware (e.g., TPMs).</t>
<section anchor="collective-effort"> <section anchor="collective-effort">
<name>Relation to other RFCs</name> <name>Relation to Other RFCs</name>
<t>This document presents one or more YANG modules <xref target="RFC7950 <t>This document presents a YANG module <xref target="RFC7950"/>
"/> that is part of a collection of RFCs that work together
that are part of a collection of RFCs that work together to ultimately support the configuration of both the clients
to, ultimately, support the configuration of both the clients and servers of the Network Configuration Protocol (NETCONF) <xref ta
and servers of both the NETCONF <xref target="RFC6241"/> and rget="RFC6241"/> and
RESTCONF <xref target="RFC8040"/> protocols.</t> RESTCONF <xref target="RFC8040"/>.</t>
<t> The dependency relationship between the primary YANG groupings <t> The dependency relationship between the primary YANG groupings
defined in the various RFCs is presented in the below diagram. defined in the various RFCs is presented in the diagram below.
In some cases, a draft may define secondary groupings that In some cases, a document may define secondary groupings that
introduce dependencies not illustrated in the diagram. introduce dependencies not illustrated in the diagram.
The labels in the diagram are a shorthand name for the defining The labels in the diagram are shorthand names for the defining
RFC. The citation reference for shorthand name is provided below RFCs. The citation references for the shorthand names are provided
below
the diagram.</t> the diagram.</t>
<t>Please note that the arrows in the diagram point from referencer <t>Please note that the arrows in the diagram point from referencer
to referenced. For example, the "crypto-types" RFC does not to referenced. For example, the "crypto-types" RFC does not
have any dependencies, whilst the "keystore" RFC depends on the have any dependencies, whilst the "keystore" RFC depends on the
"crypto-types" RFC.</t> "crypto-types" RFC.</t>
<artwork><![CDATA[ <artwork><![CDATA[
crypto-types crypto-types
^ ^ ^ ^
/ \ / \
/ \ / \
skipping to change at line 160 skipping to change at line 109
| | | +-----+ +---------+ | | | | +-----+ +---------+ |
| | | | | | | | | | | |
| +-----------|--------|--------------+ | | | +-----------|--------|--------------+ | |
| | | | | | | | | | | |
+-----------+ | | | | | +-----------+ | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
netconf-client-server restconf-client-server netconf-client-server restconf-client-server
]]></artwork> ]]></artwork>
<!-- RFC Editor: is there anyway to flush-left the table in PDF/HTML vie <!-- RFC Editor: is there anyway to flush-left the table in PDF/HTML views? -->
ws? --> <table align="left">
<table> <name>Labels in Diagram to RFC Mapping</name>
<name>Label in Diagram to RFC Mapping</name>
<tbody> <tbody>
<tr> <tr>
<th>Label in Diagram</th> <th>Label in Diagram</th>
<th>Originating RFC</th> <th>Originating RFC</th>
</tr> </tr>
<tr> <tr>
<td>crypto-types</td> <td>crypto-types</td>
<td> <td>
<xref target="I-D.ietf-netconf-crypto-types"/></td> <xref target="RFC9640"/></td>
</tr> </tr>
<tr> <tr>
<td>truststore</td> <td>truststore</td>
<td> <td>
<xref target="I-D.ietf-netconf-trust-anchors"/></td> <xref target="RFC9641"/></td>
</tr> </tr>
<tr> <tr>
<td>keystore</td> <td>keystore</td>
<td> <td>
<xref target="I-D.ietf-netconf-keystore"/></td> RFC 9642</td>
</tr> </tr>
<tr> <tr>
<td>tcp-client-server</td> <td>tcp-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-tcp-client-server"/></td> <xref target="RFC9643"/></td>
</tr> </tr>
<tr> <tr>
<td>ssh-client-server</td> <td>ssh-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-ssh-client-server"/></td> <xref target="RFC9644"/></td>
</tr> </tr>
<tr> <tr>
<td>tls-client-server</td> <td>tls-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-tls-client-server"/></td> <xref target="RFC9645"/></td>
</tr> </tr>
<tr> <tr>
<td>http-client-server</td> <td>http-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-http-client-server"/></td> <xref target="I-D.ietf-netconf-http-client-server"/></td>
</tr> </tr>
<tr> <tr>
<td>netconf-client-server</td> <td>netconf-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-netconf-client-server"/></td> <xref target="I-D.ietf-netconf-netconf-client-server"/></td>
skipping to change at line 218 skipping to change at line 167
<tr> <tr>
<td>restconf-client-server</td> <td>restconf-client-server</td>
<td> <td>
<xref target="I-D.ietf-netconf-restconf-client-server"/></td> <xref target="I-D.ietf-netconf-restconf-client-server"/></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</section> </section>
<section> <section>
<name>Specification Language</name> <name>Specification Language</name>
<t>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL <t>
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", The key words "<bcp14>MUST</bcp14>", "<bcp14>MUST NOT</bcp14>",
"MAY", and "OPTIONAL" in this document are to be interpreted as "<bcp14>REQUIRED</bcp14>", "<bcp14>SHALL</bcp14>", "<bcp14>SHALL NOT</bcp14>
described in BCP 14 <xref target="RFC2119"/> <xref target="RFC8174"/ ",
> "<bcp14>SHOULD</bcp14>", "<bcp14>SHOULD NOT</bcp14>",
when, and only when, they appear in all capitals, as shown here.</t> "<bcp14>RECOMMENDED</bcp14>", "<bcp14>NOT RECOMMENDED</bcp14>",
"<bcp14>MAY</bcp14>", and "<bcp14>OPTIONAL</bcp14>" in this document are to
be
interpreted as described in BCP&nbsp;14 <xref target="RFC2119"/> <xref
target="RFC8174"/> when, and only when, they appear in all capitals, as
shown here.
</t>
</section> </section>
<section> <section>
<name>Terminology</name> <name>Terminology</name>
<t>The terms "client" and "server" are defined in <xref target="RFC6241" /> and are not redefined here.</t> <t>The terms "client" and "server" are defined in <xref target="RFC6241" /> and are not redefined here.</t>
<t>The term "keystore" is defined in this document as a mechanism that i ntends to safeguard secrets.</t> <t>The term "keystore" is defined in this document as a mechanism that i ntends to safeguard secrets.</t>
<t>The nomenclature "&lt;running&gt;" and "&lt;operational&gt;" are defi ned in <xref target="RFC8342"/>.</t> <t>The nomenclatures "&lt;running&gt;" and "&lt;operational&gt;" are def ined in <xref target="RFC8342"/>.</t>
<t>The sentence fragments "augmented" and "augmented in" are used herein as the past tense verbified <t>The sentence fragments "augmented" and "augmented in" are used herein as the past tense verbified
form of the "augment" statement defined in <xref section="7.17" targ et="RFC7950"/>.</t> form of the "augment" statement defined in <xref target="RFC7950" se ctionFormat="of" section="7.17"/>.</t>
<t>The term "key" may be used to mean one of three things in this docume nt: 1) the YANG-defined <t>The term "key" may be used to mean one of three things in this docume nt: 1) the YANG-defined
"asymmetric-key" or "symmetric-key" node defined in this document, 2 "asymmetric-key" or "symmetric-key" node defined in this document, 2
) the raw key data possessed by the ) the raw key data possessed by the aforementioned key nodes, or 3) the "key" of
aforementioned key nodes, and 3) the "key" of a YANG "list" statemen a YANG "list" statement.
t. This This document qualifies types '2' and '3' using "raw key value" and
document attempts to always qualify types '2' and '3' using, "raw ke
y value" and
"YANG list key" where needed. In all other cases, an unqualified "k ey" refers to a YANG-defined "YANG list key" where needed. In all other cases, an unqualified "k ey" refers to a YANG-defined
"asymmetric-key" or "symmetric-key" node.</t> "asymmetric-key" or "symmetric-key" node.</t>
</section> </section>
<section> <section>
<name>Adherence to the NMDA</name> <name>Adherence to the NMDA</name>
<t>This document is compliant with Network Management Datastore Architec ture <t>This document is compliant with Network Management Datastore Architec ture
(NMDA) <xref target="RFC8342"/>. For instance, keys and associated (NMDA) <xref target="RFC8342"/>. For instance, keys and associated
certificates installed during manufacturing (e.g., for an IDevID certificates installed during manufacturing (e.g., for an IDevID
certificate) are expected to appear in &lt;operational&gt; certificate) are expected to appear in &lt;operational&gt;
(see <xref target="built-ins"/>).</t> (see <xref target="built-ins"/>).</t>
</section> </section>
<section> <section>
<name>Conventions</name> <name>Conventions</name>
<t>Various examples in this document use "BASE64VALUE=" as a <t>Various examples in this document use "BASE64VALUE=" as a
placeholder value for binary data that has been base64 placeholder value for binary data that has been base64 encoded
encoded (per <xref section="9.8" target="RFC7950"/>). This (per <xref target="RFC7950" sectionFormat="of" section="9.8"/>). Th
placeholder value is used because real base64 encoded structures is
placeholder value is used because real base64-encoded structures
are often many lines long and hence distracting to the example are often many lines long and hence distracting to the example
being presented.</t> being presented.</t>
<t>
Various examples in this document use the XML <xref target="W3C.REC-xml-200811
26"/> encoding.
Other encodings, such as JSON <xref target="RFC8259"/>, could alternatively be u
sed.
</t>
<t>
Various examples in this document contain long lines that may be folded,
as described in <xref target="RFC8792"/>.
</t>
<t>This document uses the adjective "central" to the word "keystore" <t>This document uses the adjective "central" to the word "keystore"
to refer to the top-level instance of the "keystore-grouping", when to refer to the top-level instance of the "keystore-grouping", when
the "central-keystore-supported" feature is enabled. Please be the "central-keystore-supported" feature is enabled. Please be
aware that consuming YANG modules MAY instantiate the "keystore-grou ping" aware that consuming YANG modules <bcp14>MAY</bcp14> instantiate the "keystore-grouping"
in other locations. All such other instances are not the "central" in other locations. All such other instances are not the "central"
instance.</t> instance.</t>
</section> </section>
</section> </section>
<!--
<t>For the trusted-certificates list, Trust Anchor Format
<xref target="RFC5914"/> was evaluated and deemed inappropriate due
to this document's need to also support pinning. That is, pinning
a client-certificate to support NETCONF over TLS client authentication.<
/t>
<section> <section>
<name>The "ietf-keystore" Module</name> <name>The "ietf-keystore" Module</name>
<t>This section defines a YANG 1.1 <xref target="RFC7950"/> module called <t>This section defines a YANG 1.1 <xref target="RFC7950"/> module called
"ietf-keystore". A high-level overview of the module is provided in "ietf-keystore". A high-level overview of the module is provided in
<xref target="overview"/>. Examples illustrating the module's use <xref target="overview"/>. Examples illustrating the module's use
are provided in <xref target="examples"/>. The YANG module itself is are provided in <xref target="examples"/>. The YANG module itself is
defined in <xref target="keystore-yang-module"/>.</t> defined in <xref target="keystore-yang-module"/>.</t>
<section anchor="overview"> <section anchor="overview">
<name>Data Model Overview</name> <name>Data Model Overview</name>
<t>This section provides an overview of the "ietf-keystore" module <t>This section provides an overview of the "ietf-keystore" module
in terms of its features, typedefs, groupings, and protocol-accessib le in terms of its features, typedefs, groupings, and protocol-accessib le
nodes.</t> nodes.</t>
<section anchor="features" toc="exclude"> <section anchor="features" toc="exclude">
<name>Features</name> <name>Features</name>
<t>The following diagram lists all the "feature" statements <t>The following diagram lists all the "feature" statements
defined in the "ietf-keystore" module:</t> defined in the "ietf-keystore" module:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
Features: Features:
+-- central-keystore-supported +-- central-keystore-supported
+-- inline-definitions-supported +-- inline-definitions-supported
+-- asymmetric-keys +-- asymmetric-keys
+-- symmetric-keys +-- symmetric-keys
]]></artwork> ]]></sourcecode>
<!--<aside>-->
<t>The diagram above uses syntax that is similar to but not <t>The diagram above uses syntax that is similar to but not
defined in <xref target="RFC8340"/>.</t> defined in <xref target="RFC8340"/>.</t>
<!--</aside>-->
</section> </section>
<section anchor="typedefs" toc="exclude"> <section anchor="typedefs" toc="exclude">
<name>Typedefs</name> <name>Typedefs</name>
<t>The following diagram lists the "typedef" statements defined in <t>The following diagram lists the "typedef" statements defined in
the "ietf-keystore" module:</t> the "ietf-keystore" module:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
Typedefs: Typedefs:
leafref leafref
+-- central-symmetric-key-ref +-- central-symmetric-key-ref
+-- central-asymmetric-key-ref +-- central-asymmetric-key-ref
]]></artwork> ]]></sourcecode>
<!--<aside>-->
<t>The diagram above uses syntax that is similar to but not <t>The diagram above uses syntax that is similar to but not
defined in <xref target="RFC8340"/>.</t> defined in <xref target="RFC8340"/>.</t>
<!--</aside>-->
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>All the typedefs defined in the "ietf-keystore" module <li>All the typedefs defined in the "ietf-keystore" module
extend the base "leafref" type defined in <xref target="RFC7950" />.</li> extend the base "leafref" type defined in <xref target="RFC7950" />.</li>
<li>The leafrefs refer to symmetric and asymmetric keys in the <li>The leafrefs refer to symmetric and asymmetric keys in the
central keystore, when this module is implemented.</li> central keystore when this module is implemented.</li>
<li>These typedefs are provided as an aid to consuming <li>These typedefs are provided as an aid to consuming
modules that import the "ietf-keystore" module.</li> modules that import the "ietf-keystore" module.</li>
</ul> </ul>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>Groupings</name> <name>Groupings</name>
<t>The "ietf-keystore" module defines the following "grouping" stateme nts:</t> <t>The "ietf-keystore" module defines the following "grouping" stateme nts:</t>
<ul spacing="compact"> <ul spacing="compact">
<li>encrypted-by-grouping</li> <li>encrypted-by-grouping</li>
<li>central-asymmetric-key-certificate-ref-grouping</li> <li>central-asymmetric-key-certificate-ref-grouping</li>
skipping to change at line 338 skipping to change at line 291
<li>inline-or-keystore-asymmetric-key-grouping</li> <li>inline-or-keystore-asymmetric-key-grouping</li>
<li>inline-or-keystore-asymmetric-key-with-certs-grouping</li> <li>inline-or-keystore-asymmetric-key-with-certs-grouping</li>
<li>inline-or-keystore-end-entity-cert-with-key-grouping</li> <li>inline-or-keystore-end-entity-cert-with-key-grouping</li>
<li>keystore-grouping</li> <li>keystore-grouping</li>
</ul> </ul>
<t>Each of these groupings are presented in the following subsections. </t> <t>Each of these groupings are presented in the following subsections. </t>
<section anchor="encrypted-by-grouping"> <section anchor="encrypted-by-grouping">
<name>The "encrypted-by-grouping" Grouping</name> <name>The "encrypted-by-grouping" Grouping</name>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"encrypted-by-grouping" grouping:</t> "encrypted-by-grouping" grouping:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping encrypted-by-grouping: grouping encrypted-by-grouping:
+-- (encrypted-by) +-- (encrypted-by)
+--:(central-symmetric-key-ref) +--:(central-symmetric-key-ref)
| {central-keystore-supported,symmetric-keys}? | {central-keystore-supported,symmetric-keys}?
| +-- symmetric-key-ref? ks:central-symmetric-key-ref | +-- symmetric-key-ref? ks:central-symmetric-key-ref
+--:(central-asymmetric-key-ref) +--:(central-asymmetric-key-ref)
{central-keystore-supported,asymmetric-keys}? {central-keystore-supported,asymmetric-keys}?
+-- asymmetric-key-ref? ks:central-asymmetric-key-ref +-- asymmetric-key-ref? ks:central-asymmetric-key-ref
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>This grouping defines a "choice" statement with options to ref erence <li>This grouping defines a "choice" statement with options to ref erence
either a symmetric or an asymmetric key configured in the keys tore.</li> either a symmetric or an asymmetric key configured in the keys tore.</li>
<li>This grouping is usable only when the keystore module is imple mented. <li>This grouping is usable only when the keystore module is imple mented.
Servers defining custom keystore locations MUST augment in alt ernate Servers defining custom keystore locations <bcp14>MUST</bcp14> augment in alternate
"encrypted-by" references to the alternate locations.</li> "encrypted-by" references to the alternate locations.</li>
</ul> </ul>
</section> </section>
<section anchor="central-asymmetric-key-certificate-ref-grouping"> <section anchor="central-asymmetric-key-certificate-ref-grouping">
<name>The "central-asymmetric-key-certificate-ref-grouping" Grouping </name> <name>The "central-asymmetric-key-certificate-ref-grouping" Grouping </name>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"central-asymmetric-key-certificate-ref-grouping" grouping:</t> "central-asymmetric-key-certificate-ref-grouping" grouping:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping central-asymmetric-key-certificate-ref-grouping: grouping central-asymmetric-key-certificate-ref-grouping:
+-- asymmetric-key? ks:central-asymmetric-key-ref +-- asymmetric-key? ks:central-asymmetric-key-ref
| {central-keystore-supported,asymmetric-keys}? | {central-keystore-supported,asymmetric-keys}?
+-- certificate? leafref +-- certificate? leafref
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>This grouping defines a reference to a certificate in two part s: the <li>This grouping defines a reference to a certificate in two part s: the
first being the name of the asymmetric key the certificate is associated first being the name of the asymmetric key the certificate is associated
with, and the second being the name of the certificate itself. </li> with, and the second being the name of the certificate itself. </li>
<li>This grouping is usable only when the keystore module is imple mented. <li>This grouping is usable only when the keystore module is imple mented.
Servers defining custom keystore locations can define an alter nate grouping Servers defining custom keystore locations can define an alter nate grouping
for references to the alternate locations.</li> for references to the alternate locations.</li>
</ul> </ul>
</section> </section>
<section anchor="inline-or-keystore-symmetric-key-grouping"> <section anchor="inline-or-keystore-symmetric-key-grouping">
<name>The "inline-or-keystore-symmetric-key-grouping" Grouping</name > <name>The "inline-or-keystore-symmetric-key-grouping" Grouping</name >
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"inline-or-keystore-symmetric-key-grouping" grouping:</t> "inline-or-keystore-symmetric-key-grouping" grouping:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping inline-or-keystore-symmetric-key-grouping: grouping inline-or-keystore-symmetric-key-grouping:
+-- (inline-or-keystore) +-- (inline-or-keystore)
+--:(inline) {inline-definitions-supported}? +--:(inline) {inline-definitions-supported}?
| +-- inline-definition | +-- inline-definition
| +---u ct:symmetric-key-grouping | +---u ct:symmetric-key-grouping
+--:(central-keystore) +--:(central-keystore)
{central-keystore-supported,symmetric-keys}? {central-keystore-supported,symmetric-keys}?
+-- central-keystore-reference? +-- central-keystore-reference?
ks:central-symmetric-key-ref ks:central-symmetric-key-ref
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>The "inline-or-keystore-symmetric-key-grouping" grouping is pr ovided <li>The "inline-or-keystore-symmetric-key-grouping" grouping is pr ovided
solely as convenience to consuming modules that wish to offer solely as convenience to consuming modules that wish to offer
an option for whether a symmetric key is defined inline an option for a symmetric key that is defined either inline
or as a reference to a symmetric key in the keystore.</li> or as a reference to a symmetric key in the keystore.</li>
<li>A "choice" statement is used to expose the various options. <li>A "choice" statement is used to expose the various options.
Each option is enabled by a "feature" statement. Additional Each option is enabled by a "feature" statement. Additional
"case" statements MAY be augmented in if, e.g., there is a "case" statements <bcp14>MAY</bcp14> be augmented in if, e.g., there is a
need to reference a symmetric key in an alternate location.</l i> need to reference a symmetric key in an alternate location.</l i>
<li>For the "inline-definition" option, the definition uses the <li>For the "inline-definition" option, the definition uses the
"symmetric-key-grouping" grouping discussed in <xref section=" 2.1.4.3" target="I-D.ietf-netconf-crypto-types"/>.</li> "symmetric-key-grouping" grouping discussed in <xref target="R FC9640" sectionFormat="of" section="2.1.4.3"/>.</li>
<li>For the "central-keystore" option, the "central-keystore-refer ence" is an <li>For the "central-keystore" option, the "central-keystore-refer ence" is an
instance of the "symmetric-key-ref" discussed in <xref target= "typedefs"/>.</li> instance of the "symmetric-key-ref" discussed in <xref target= "typedefs"/>.</li>
</ul> </ul>
</section> </section>
<section anchor="inline-or-keystore-asymmetric-key-grouping"> <section anchor="inline-or-keystore-asymmetric-key-grouping">
<name>The "inline-or-keystore-asymmetric-key-grouping" Grouping</nam e> <name>The "inline-or-keystore-asymmetric-key-grouping" Grouping</nam e>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"inline-or-keystore-asymmetric-key-grouping" grouping:</t> "inline-or-keystore-asymmetric-key-grouping" grouping:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping inline-or-keystore-asymmetric-key-grouping: grouping inline-or-keystore-asymmetric-key-grouping:
+-- (inline-or-keystore) +-- (inline-or-keystore)
+--:(inline) {inline-definitions-supported}? +--:(inline) {inline-definitions-supported}?
| +-- inline-definition | +-- inline-definition
| +---u ct:asymmetric-key-pair-grouping | +---u ct:asymmetric-key-pair-grouping
+--:(central-keystore) +--:(central-keystore)
{central-keystore-supported,asymmetric-keys}? {central-keystore-supported,asymmetric-keys}?
+-- central-keystore-reference? +-- central-keystore-reference?
ks:central-asymmetric-key-ref ks:central-asymmetric-key-ref
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>The "inline-or-keystore-asymmetric-key-grouping" grouping is p rovided <li>The "inline-or-keystore-asymmetric-key-grouping" grouping is p rovided
solely as convenience to consuming modules that wish to offer solely as convenience to consuming modules that wish to offer
an option for whether an asymmetric key is defined inline an option for an asymmetric key that is defined either inline
or as a reference to an asymmetric key in the keystore.</li> or as a reference to an asymmetric key in the keystore.</li>
<li>A "choice" statement is used to expose the various options. <li>A "choice" statement is used to expose the various options.
Each option is enabled by a "feature" statement. Additional Each option is enabled by a "feature" statement. Additional
"case" statements MAY be augmented in if, e.g., there is a "case" statements <bcp14>MAY</bcp14> be augmented in if, e.g., there is a
need to reference an asymmetric key in an alternate location.< /li> need to reference an asymmetric key in an alternate location.< /li>
<li>For the "inline-definition" option, the definition uses the <li>For the "inline-definition" option, the definition uses the
"asymmetric-key-pair-grouping" grouping discussed in <xref sec tion="2.1.4.6" target="I-D.ietf-netconf-crypto-types"/>.</li> "asymmetric-key-pair-grouping" grouping discussed in <xref tar get="RFC9640" sectionFormat="of" section="2.1.4.6"/>.</li>
<li>For the "central-keystore" option, the "central-keystore-refer ence" is an <li>For the "central-keystore" option, the "central-keystore-refer ence" is an
instance of the "asymmetric-key-ref" typedef discussed in instance of the "asymmetric-key-ref" typedef discussed in
<xref target="typedefs"/>.</li> <xref target="typedefs"/>.</li>
</ul> </ul>
</section> </section>
<section anchor="inline-or-keystore-asymmetric-key-with-certs-grouping "> <section anchor="inline-or-keystore-asymmetric-key-with-certs-grouping ">
<name>The "inline-or-keystore-asymmetric-key-with-certs-grouping" Gr ouping</name> <name>The "inline-or-keystore-asymmetric-key-with-certs-grouping" Gr ouping</name>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"inline-or-keystore-asymmetric-key-with-certs-grouping" grouping :</t> "inline-or-keystore-asymmetric-key-with-certs-grouping" grouping :</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping inline-or-keystore-asymmetric-key-with-certs-grouping: grouping inline-or-keystore-asymmetric-key-with-certs-grouping:
+-- (inline-or-keystore) +-- (inline-or-keystore)
+--:(inline) {inline-definitions-supported}? +--:(inline) {inline-definitions-supported}?
| +-- inline-definition | +-- inline-definition
| +---u ct:asymmetric-key-pair-with-certs-grouping | +---u ct:asymmetric-key-pair-with-certs-grouping
+--:(central-keystore) +--:(central-keystore)
{central-keystore-supported,asymmetric-keys}? {central-keystore-supported,asymmetric-keys}?
+-- central-keystore-reference? +-- central-keystore-reference?
ks:central-asymmetric-key-ref ks:central-asymmetric-key-ref
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>The "inline-or-keystore-asymmetric-key-with-certs-grouping" gr ouping is provided <li>The "inline-or-keystore-asymmetric-key-with-certs-grouping" gr ouping is provided
solely as convenience to consuming modules that wish to offer solely as convenience to consuming modules that wish to offer
an option for whether an asymmetric key is defined inline an option for an asymmetric key that is defined either inline
or as a reference to an asymmetric key in the keystore.</li> or as a reference to an asymmetric key in the keystore.</li>
<li>A "choice" statement is used to expose the various options. <li>A "choice" statement is used to expose the various options.
Each option is enabled by a "feature" statement. Additional Each option is enabled by a "feature" statement. Additional
"case" statements MAY be augmented in if, e.g., there is a "case" statements <bcp14>MAY</bcp14> be augmented in if, e.g., there is a
need to reference an asymmetric key in an alternate location.< /li> need to reference an asymmetric key in an alternate location.< /li>
<li>For the "inline-definition" option, the definition uses the <li>For the "inline-definition" option, the definition uses the
"asymmetric-key-pair-with-certs-grouping" grouping discussed i n <xref section="2.1.4.12" target="I-D.ietf-netconf-crypto-types"/>.</li> "asymmetric-key-pair-with-certs-grouping" grouping discussed i n <xref target="RFC9640" sectionFormat="of" section="2.1.4.12"/>.</li>
<li>For the "central-keystore" option, the "central-keystore-refer ence" is an <li>For the "central-keystore" option, the "central-keystore-refer ence" is an
instance of the "asymmetric-key-ref" typedef discussed in instance of the "asymmetric-key-ref" typedef discussed in
<xref target="typedefs"/>.</li> <xref target="typedefs"/>.</li>
</ul> </ul>
</section> </section>
<section anchor="inline-or-keystore-end-entity-cert-with-key-grouping" > <section anchor="inline-or-keystore-end-entity-cert-with-key-grouping" >
<name>The "inline-or-keystore-end-entity-cert-with-key-grouping" Gro uping</name> <name>The "inline-or-keystore-end-entity-cert-with-key-grouping" Gro uping</name>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"inline-or-keystore-end-entity-cert-with-key-grouping" grouping: </t> "inline-or-keystore-end-entity-cert-with-key-grouping" grouping: </t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping inline-or-keystore-end-entity-cert-with-key-grouping: grouping inline-or-keystore-end-entity-cert-with-key-grouping:
+-- (inline-or-keystore) +-- (inline-or-keystore)
+--:(inline) {inline-definitions-supported}? +--:(inline) {inline-definitions-supported}?
| +-- inline-definition | +-- inline-definition
| +---u ct:asymmetric-key-pair-with-cert-grouping | +---u ct:asymmetric-key-pair-with-cert-grouping
+--:(central-keystore) +--:(central-keystore)
{central-keystore-supported,asymmetric-keys}? {central-keystore-supported,asymmetric-keys}?
+-- central-keystore-reference +-- central-keystore-reference
+---u central-asymmetric-key-certificate-ref-grouping +---u central-asymmetric-key-certificate-ref-grouping
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>The "inline-or-keystore-end-entity-cert-with-key-grouping" gro uping is provided <li>The "inline-or-keystore-end-entity-cert-with-key-grouping" gro uping is provided
solely as convenience to consuming modules that wish to offer solely as convenience to consuming modules that wish to offer
an option for whether a symmetric key is defined inline an option for a symmetric key that is defined either inline
or as a reference to a symmetric key in the keystore.</li> or as a reference to a symmetric key in the keystore.</li>
<li>A "choice" statement is used to expose the various options. <li>A "choice" statement is used to expose the various options.
Each option is enabled by a "feature" statement. Additional Each option is enabled by a "feature" statement. Additional
"case" statements MAY be augmented in if, e.g., there is a "case" statements <bcp14>MAY</bcp14> be augmented in if, e.g., there is a
need to reference a symmetric key in an alternate location.</l i> need to reference a symmetric key in an alternate location.</l i>
<li>For the "inline-definition" option, the definition uses the <li>For the "inline-definition" option, the definition uses the
"asymmetric-key-pair-with-certs-grouping" grouping discussed i n <xref section="2.1.4.12" target="I-D.ietf-netconf-crypto-types"/>.</li> "asymmetric-key-pair-with-certs-grouping" grouping discussed i n <xref target="RFC9640" sectionFormat="of" section="2.1.4.12"/>.</li>
<li>For the "central-keystore" option, the "central-keystore-refer ence" uses the <li>For the "central-keystore" option, the "central-keystore-refer ence" uses the
"central-asymmetric-key-certificate-ref-grouping" grouping dis cussed in "central-asymmetric-key-certificate-ref-grouping" grouping dis cussed in
<xref target="central-asymmetric-key-certificate-ref-grouping" />.</li> <xref target="central-asymmetric-key-certificate-ref-grouping" />.</li>
</ul> </ul>
</section> </section>
<section anchor="keystore-grouping"> <section anchor="keystore-grouping">
<name>The "keystore-grouping" Grouping</name> <name>The "keystore-grouping" Grouping</name>
<t>The following tree diagram <xref target="RFC8340"/> illustrates t he <t>The following tree diagram <xref target="RFC8340"/> illustrates t he
"keystore-grouping" grouping:</t> "keystore-grouping" grouping:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
grouping keystore-grouping: grouping keystore-grouping:
+-- asymmetric-keys {asymmetric-keys}? +-- asymmetric-keys {asymmetric-keys}?
| +-- asymmetric-key* [name] | +-- asymmetric-key* [name]
| +-- name? string | +-- name string
| +---u ct:asymmetric-key-pair-with-certs-grouping | +---u ct:asymmetric-key-pair-with-certs-grouping
+-- symmetric-keys {symmetric-keys}? +-- symmetric-keys {symmetric-keys}?
+-- symmetric-key* [name] +-- symmetric-key* [name]
+-- name? string +-- name string
+---u ct:symmetric-key-grouping +---u ct:symmetric-key-grouping
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>The "keystore-grouping" grouping defines a keystore instance <li>The "keystore-grouping" grouping defines a keystore instance
as being composed of symmetric and asymmetric keys. The struc ture as being composed of symmetric and asymmetric keys. The struc ture
for the symmetric and asymmetric keys is essentially the same, for the symmetric and asymmetric keys is essentially the same:
being a "list" inside a "container".</li> a "list" inside a "container".</li>
<li>For asymmetric keys, each "asymmetric-key" uses the <li>For asymmetric keys, each "asymmetric-key" uses the
"asymmetric-key-pair-with-certs-grouping" grouping discussed i n "asymmetric-key-pair-with-certs-grouping" grouping discussed i n
<xref section="2.1.4.12" target="I-D.ietf-netconf-crypto-types "/>.</li> <xref target="RFC9640" sectionFormat="of" section="2.1.4.12"/>.</l i>
<li>For symmetric keys, each "symmetric-key" uses the <li>For symmetric keys, each "symmetric-key" uses the
"symmetric-key-grouping" grouping discussed in "symmetric-key-grouping" grouping discussed in
<xref section="2.1.4.3" target="I-D.ietf-netconf-crypto-types" />.</li> <xref target="RFC9640" sectionFormat="of" section="2.1.4.3"/>. </li>
</ul> </ul>
</section> </section>
</section> </section>
<section anchor="proto-access-nodes" toc="exclude"> <section anchor="proto-access-nodes" toc="exclude">
<name>Protocol-accessible Nodes</name> <name>Protocol-Accessible Nodes</name>
<t>The following tree diagram <xref target="RFC8340"/> lists all the <t>The following tree diagram <xref target="RFC8340"/> lists all the
protocol-accessible nodes defined in the "ietf-keystore" module, w ithout protocol-accessible nodes defined in the "ietf-keystore" module wi thout
expanding the "grouping" statements:</t> expanding the "grouping" statements:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
module: ietf-keystore module: ietf-keystore
+--rw keystore {central-keystore-supported}? +--rw keystore {central-keystore-supported}?
+---u keystore-grouping +---u keystore-grouping
]]></artwork> ]]></sourcecode>
<t>The following tree diagram <xref target="RFC8340"/> lists all the <t>The following tree diagram <xref target="RFC8340"/> lists all the
protocol-accessible nodes defined in the "ietf-keystore" module, w ith protocol-accessible nodes defined in the "ietf-keystore" module, w ith
all "grouping" statements expanded, enabling the keystore's full all "grouping" statements expanded, enabling the keystore's full
structure to be seen:</t> structure to be seen.</t>
<artwork><![CDATA[
<sourcecode type="yangtree"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
module: ietf-keystore module: ietf-keystore
+--rw keystore {central-keystore-supported}? +--rw keystore {central-keystore-supported}?
+--rw asymmetric-keys {asymmetric-keys}? +--rw asymmetric-keys {asymmetric-keys}?
| +--rw asymmetric-key* [name] | +--rw asymmetric-key* [name]
| +--rw name string | +--rw name string
| +--rw public-key-format? identityref | +--rw public-key-format? identityref
| +--rw public-key? binary | +--rw public-key? binary
| +--rw private-key-format? identityref | +--rw private-key-format? identityref
skipping to change at line 622 skipping to change at line 577
tric-keys}? tric-keys}?
| | +--rw symmetric-key-ref? | | +--rw symmetric-key-ref?
| | ks:central-symmetric-key-ref | | ks:central-symmetric-key-ref
| +--:(central-asymmetric-key-ref) | +--:(central-asymmetric-key-ref)
| {central-keystore-supported,asymm\ | {central-keystore-supported,asymm\
etric-keys}? etric-keys}?
| +--rw asymmetric-key-ref? | +--rw asymmetric-key-ref?
| ks:central-asymmetric-key-ref | ks:central-asymmetric-key-ref
+--rw encrypted-value-format identityref +--rw encrypted-value-format identityref
+--rw encrypted-value binary +--rw encrypted-value binary
]]></artwork> ]]></sourcecode>
<t>Comments:</t> <t>Comments:</t>
<ul> <ul>
<li>Protocol-accessible nodes are those nodes that are accessible <li>Protocol-accessible nodes are those nodes that are accessible
when the module is "implemented", as described in <xref section= "5.6.5" target="RFC7950"/>.</li> when the module is "implemented", as described in <xref target=" RFC7950" sectionFormat="of" section="5.6.5"/>.</li>
<li>The protocol-accessible nodes for the "ietf-keystore" module <li>The protocol-accessible nodes for the "ietf-keystore" module
are instances of the "keystore-grouping" grouping discussed in are instances of the "keystore-grouping" grouping discussed in
<xref target="keystore-grouping"/>. <xref target="keystore-grouping"/>.
</li> </li>
<li>The top-level node "keystore" is additionally constrained <li>The top-level node "keystore" is additionally constrained
by the feature "central-keystore-supported".</li> by the feature "central-keystore-supported".</li>
<li>The "keystore-grouping" grouping is discussed in <li>The "keystore-grouping" grouping is discussed in
<xref target="keystore-grouping"/>.</li> <xref target="keystore-grouping"/>.</li>
<li>The reason for why "keystore-grouping" exists separate from <li>The reason for why "keystore-grouping" exists separate from
the protocol-accessible nodes definition is so as to enable the protocol-accessible nodes definition is to enable
instances of the keystore to be instantiated in other instances of the keystore to be instantiated in other
locations, as may be needed or desired by some modules.</li> locations, as may be needed or desired by some modules.</li>
</ul> </ul>
</section> </section>
</section> </section>
<section anchor="examples"> <section anchor="examples">
<name>Example Usage</name> <name>Example Usage</name>
<t>The examples in this section are encoded using XML, such as might <t>The examples in this section are encoded using XML, such as might
be the case when using the NETCONF protocol. Other encodings MAY be the case when using the NETCONF protocol.
Other encodings <bcp14>MAY</bcp14>
be used, such as JSON when using the RESTCONF protocol.</t> be used, such as JSON when using the RESTCONF protocol.</t>
<section anchor="ks-inst" toc="exclude"> <section anchor="ks-inst" toc="exclude">
<name>A Keystore Instance</name> <name>A Keystore Instance</name>
<t>The following example illustrates keys in &lt;running&gt;. <t>The following example illustrates keys in &lt;running&gt;.
Please see <xref target="built-ins"/> for an example illustrating Please see <xref target="built-ins"/> for an example illustrating
built-in values in &lt;operational&gt;.</t> built-in values in &lt;operational&gt;.</t>
<artwork><![CDATA[ <sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<keystore <keystore
xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore" xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore"
xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types"> xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types">
<symmetric-keys> <symmetric-keys>
<symmetric-key> <symmetric-key>
<name>cleartext-symmetric-key</name> <name>cleartext-symmetric-key</name>
<key-format>ct:octet-string-key-format</key-format> <key-format>ct:octet-string-key-format</key-format>
skipping to change at line 767 skipping to change at line 724
<symmetric-key-ref>encrypted-symmetric-key</symmetric-k\ <symmetric-key-ref>encrypted-symmetric-key</symmetric-k\
ey-ref> ey-ref>
</encrypted-by> </encrypted-by>
<encrypted-value-format>ct:cms-encrypted-data-format</enc\ <encrypted-value-format>ct:cms-encrypted-data-format</enc\
rypted-value-format> rypted-value-format>
<encrypted-value>BASE64VALUE=</encrypted-value> <encrypted-value>BASE64VALUE=</encrypted-value>
</encrypted-private-key> </encrypted-private-key>
</asymmetric-key> </asymmetric-key>
</asymmetric-keys> </asymmetric-keys>
</keystore> </keystore>
]]></sourcecode>
]]></artwork>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>A Certificate Expiration Notification</name> <name>A Certificate Expiration Notification</name>
<t>The following example illustrates a "certificate-expiration" <t>The following example illustrates a "certificate-expiration"
notification for a certificate associated with an asymmetric notification for a certificate associated with an asymmetric
key configured in the keystore.</t> key configured in the keystore.</t>
<artwork><![CDATA[ <sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<notification <notification
xmlns="urn:ietf:params:xml:ns:netconf:notification:1.0"> xmlns="urn:ietf:params:xml:ns:netconf:notification:1.0">
<eventTime>2018-05-25T00:01:00Z</eventTime> <eventTime>2018-05-25T00:01:00Z</eventTime>
<keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore"> <keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore">
<asymmetric-keys> <asymmetric-keys>
<asymmetric-key> <asymmetric-key>
<name>hidden-asymmetric-key</name> <name>hidden-asymmetric-key</name>
<certificates> <certificates>
skipping to change at line 798 skipping to change at line 754
<certificate-expiration> <certificate-expiration>
<expiration-date>2018-08-05T14:18:53-05:00</expiration\ <expiration-date>2018-08-05T14:18:53-05:00</expiration\
-date> -date>
</certificate-expiration> </certificate-expiration>
</certificate> </certificate>
</certificates> </certificates>
</asymmetric-key> </asymmetric-key>
</asymmetric-keys> </asymmetric-keys>
</keystore> </keystore>
</notification> </notification>
]]></sourcecode>
]]></artwork>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>The "Local or Keystore" Groupings</name> <name>The "Inline or Keystore" Groupings</name>
<t>This section illustrates the various "inline-or-keystore" groupings <t>This section illustrates the various "inline-or-keystore" groupings
defined in the "ietf-keystore" module, specifically the defined in the "ietf-keystore" module, specifically the
"inline-or-keystore-symmetric-key-grouping" "inline-or-keystore-symmetric-key-grouping"
(<xref target="inline-or-keystore-symmetric-key-grouping"/>), (<xref target="inline-or-keystore-symmetric-key-grouping"/>),
"inline-or-keystore-asymmetric-key-grouping" "inline-or-keystore-asymmetric-key-grouping"
(<xref target="inline-or-keystore-asymmetric-key-grouping"/>), (<xref target="inline-or-keystore-asymmetric-key-grouping"/>),
"inline-or-keystore-asymmetric-key-with-certs-grouping" "inline-or-keystore-asymmetric-key-with-certs-grouping"
(<xref target="inline-or-keystore-asymmetric-key-with-certs-groupi ng"/>), and (<xref target="inline-or-keystore-asymmetric-key-with-certs-groupi ng"/>), and
"inline-or-keystore-end-entity-cert-with-key-grouping" "inline-or-keystore-end-entity-cert-with-key-grouping"
(<xref target="inline-or-keystore-end-entity-cert-with-key-groupin g"/>) groupings.</t> (<xref target="inline-or-keystore-end-entity-cert-with-key-groupin g"/>) groupings.</t>
<t>These examples assume the existence of an example module called "ex -keystore-usage" <t>These examples assume the existence of an example module called "ex -keystore-usage"
having the namespace "https://example.com/ns/example-keystore-usag e".</t> that has the namespace "https://example.com/ns/example-keystore-us age".</t>
<t>The ex-keystore-usage module is first presented using tree diagrams <t>The ex-keystore-usage module is first presented using tree diagrams
<xref target="RFC8340"/>, followed by an instance example illustra ting <xref target="RFC8340"/>, followed by an instance example illustra ting
all the "inline-or-keystore" groupings in use, followed by the YAN G all the "inline-or-keystore" groupings in use, followed by the YAN G
module itself.</t> module itself.</t>
<section toc="exclude"> <section toc="exclude">
<name>Tree Diagrams for the "ex-keystore-usage" Module</name> <name>Tree Diagrams for the "ex-keystore-usage" Module</name>
<t>The following tree diagram illustrates "ex-keystore-usage" withou t <t>The following tree diagram illustrates "ex-keystore-usage" withou t
expanding the "grouping" statements:</t> expanding the "grouping" statements:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
module: ex-keystore-usage module: ex-keystore-usage
+--rw keystore-usage +--rw keystore-usage
+--rw symmetric-key* [name] +--rw symmetric-key* [name]
| +--rw name string | +--rw name string
| +---u ks:inline-or-keystore-symmetric-key-grouping | +---u ks:inline-or-keystore-symmetric-key-grouping
+--rw asymmetric-key* [name] +--rw asymmetric-key* [name]
| +--rw name string | +--rw name string
| +---u ks:inline-or-keystore-asymmetric-key-grouping | +---u ks:inline-or-keystore-asymmetric-key-grouping
+--rw asymmetric-key-with-certs* [name] +--rw asymmetric-key-with-certs* [name]
| +--rw name | +--rw name
| | string | | string
| +---u ks:inline-or-keystore-asymmetric-key-with-certs-groupi\ | +---u ks:inline-or-keystore-asymmetric-key-with-certs-groupi\
ng ng
+--rw end-entity-cert-with-key* [name] +--rw end-entity-cert-with-key* [name]
+--rw name +--rw name
| string | string
+---u ks:inline-or-keystore-end-entity-cert-with-key-grouping +---u ks:inline-or-keystore-end-entity-cert-with-key-grouping
]]></artwork> ]]></sourcecode>
<t>The following tree diagram illustrates the "ex-keystore-usage" <t>The following tree diagram illustrates the "ex-keystore-usage"
module, with all "grouping" statements expanded, enabling the module with all "grouping" statements expanded, enabling the
usage's full structure to be seen:</t> usage's full structure to be seen:</t>
<artwork><![CDATA[ <sourcecode type="yangtree"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
module: ex-keystore-usage module: ex-keystore-usage
+--rw keystore-usage +--rw keystore-usage
+--rw symmetric-key* [name] +--rw symmetric-key* [name]
| +--rw name string | +--rw name string
| +--rw (inline-or-keystore) | +--rw (inline-or-keystore)
| +--:(inline) {inline-definitions-supported}? | +--:(inline) {inline-definitions-supported}?
| | +--rw inline-definition | | +--rw inline-definition
| | +--rw key-format? identityref | | +--rw key-format? identityref
skipping to change at line 980 skipping to change at line 935
| +--:(p10-csr) | +--:(p10-csr)
| +--ro p10-csr? p10-csr | +--ro p10-csr? p10-csr
+--:(central-keystore) +--:(central-keystore)
{central-keystore-supported,asymmetric-keys}? {central-keystore-supported,asymmetric-keys}?
+--rw central-keystore-reference +--rw central-keystore-reference
+--rw asymmetric-key? +--rw asymmetric-key?
| ks:central-asymmetric-key-ref | ks:central-asymmetric-key-ref
| {central-keystore-supported,asymmetric-keys\ | {central-keystore-supported,asymmetric-keys\
}? }?
+--rw certificate? leafref +--rw certificate? leafref
]]></artwork> ]]></sourcecode>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>Example Usage for the "ex-keystore-usage" Module</name> <name>Example Usage for the "ex-keystore-usage" Module</name>
<t>The following example provides two equivalent instances of <t>The following example provides two equivalent instances of
each grouping, the first being a reference to a keystore each grouping, the first being a reference to a keystore
and the second being inlined. The instance having and the second being inlined. The instance having
a reference to a keystore is consistent with the keystore a reference to a keystore is consistent with the keystore
defined in <xref target="ks-inst"/>. The two instances are defined in <xref target="ks-inst"/>. The two instances are
equivalent, as the inlined instance example contains equivalent, as the inlined instance example contains
the same values defined by the keystore instance referenced the same values defined by the keystore instance referenced
by its sibling example.</t> by its sibling example.</t>
<artwork><![CDATA[
<sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<keystore-usage <keystore-usage
xmlns="https://example.com/ns/example-keystore-usage" xmlns="https://example.com/ns/example-keystore-usage"
xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types"> xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types">
<!-- The following two equivalent examples illustrate the --> <!-- The following two equivalent examples illustrate the -->
<!-- "inline-or-keystore-symmetric-key-grouping" grouping: --> <!-- "inline-or-keystore-symmetric-key-grouping" grouping: -->
<symmetric-key> <symmetric-key>
<name>example 1a</name> <name>example 1a</name>
<central-keystore-reference>cleartext-symmetric-key</central-key\ <central-keystore-reference>cleartext-symmetric-key</central-key\
store-reference> store-reference>
</symmetric-key> </symmetric-key>
<symmetric-key> <symmetric-key>
<name>example 1b</name> <name>example 1b</name>
<inline-definition> <inline-definition>
<key-format>ct:octet-string-key-format</key-format> <key-format>ct:octet-string-key-format</key-format>
<cleartext-symmetric-key>BASE64VALUE=</cleartext-symmetric-key> <cleartext-symmetric-key>BASE64VALUE=</cleartext-symmetric-key>
</inline-definition> </inline-definition>
</symmetric-key> </symmetric-key>
<!-- The following two equivalent examples illustrate the --> <!-- The following two equivalent examples illustrate the -->
<!-- "inline-or-keystore-asymmetric-key-grouping" grouping: --> <!-- "inline-or-keystore-asymmetric-key-grouping" grouping: -->
<asymmetric-key> <asymmetric-key>
<name>example 2a</name> <name>example 2a</name>
<central-keystore-reference>rsa-asymmetric-key</central-keystore\ <central-keystore-reference>rsa-asymmetric-key</central-keystore\
-reference> -reference>
</asymmetric-key> </asymmetric-key>
<asymmetric-key> <asymmetric-key>
<name>example 2b</name> <name>example 2b</name>
<inline-definition> <inline-definition>
<public-key-format>ct:subject-public-key-info-format</public-k\ <public-key-format>ct:subject-public-key-info-format</public-k\
ey-format> ey-format>
<public-key>BASE64VALUE=</public-key> <public-key>BASE64VALUE=</public-key>
<private-key-format>ct:rsa-private-key-format</private-key-for\ <private-key-format>ct:rsa-private-key-format</private-key-for\
mat> mat>
<cleartext-private-key>BASE64VALUE=</cleartext-private-key> <cleartext-private-key>BASE64VALUE=</cleartext-private-key>
</inline-definition> </inline-definition>
</asymmetric-key> </asymmetric-key>
<!-- the following two equivalent examples illustrate --> <!-- The following two equivalent examples illustrate the -->
<!-- "inline-or-keystore-asymmetric-key-with-certs-grouping": --> <!-- "inline-or-keystore-asymmetric-key-with-certs-grouping" -->
<!-- grouping: -->
<asymmetric-key-with-certs> <asymmetric-key-with-certs>
<name>example 3a</name> <name>example 3a</name>
<central-keystore-reference>rsa-asymmetric-key</central-keystore\ <central-keystore-reference>rsa-asymmetric-key</central-keystore\
-reference> -reference>
</asymmetric-key-with-certs> </asymmetric-key-with-certs>
<asymmetric-key-with-certs> <asymmetric-key-with-certs>
<name>example 3b</name> <name>example 3b</name>
<inline-definition> <inline-definition>
<public-key-format>ct:subject-public-key-info-format</public-k\ <public-key-format>ct:subject-public-key-info-format</public-k\
ey-format> ey-format>
<public-key>BASE64VALUE=</public-key> <public-key>BASE64VALUE=</public-key>
<private-key-format>ct:rsa-private-key-format</private-key-for\ <private-key-format>ct:rsa-private-key-format</private-key-for\
mat> mat>
<cleartext-private-key>BASE64VALUE=</cleartext-private-key> <cleartext-private-key>BASE64VALUE=</cleartext-private-key>
<certificates> <certificates>
<certificate> <certificate>
<name>a locally-defined cert</name> <name>a locally defined cert</name>
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
</certificates> </certificates>
</inline-definition> </inline-definition>
</asymmetric-key-with-certs> </asymmetric-key-with-certs>
<!-- The following two equivalent examples illustrate --> <!-- The following two equivalent examples illustrate the -->
<!-- "inline-or-keystore-end-entity-cert-with-key-grouping": --> <!-- "inline-or-keystore-end-entity-cert-with-key-grouping" -->
<!-- grouping: -->
<end-entity-cert-with-key> <end-entity-cert-with-key>
<name>example 4a</name> <name>example 4a</name>
<central-keystore-reference> <central-keystore-reference>
<asymmetric-key>rsa-asymmetric-key</asymmetric-key> <asymmetric-key>rsa-asymmetric-key</asymmetric-key>
<certificate>ex-rsa-cert</certificate> <certificate>ex-rsa-cert</certificate>
</central-keystore-reference> </central-keystore-reference>
</end-entity-cert-with-key> </end-entity-cert-with-key>
<end-entity-cert-with-key> <end-entity-cert-with-key>
<name>example 4b</name> <name>example 4b</name>
skipping to change at line 1089 skipping to change at line 1047
ey-format> ey-format>
<public-key>BASE64VALUE=</public-key> <public-key>BASE64VALUE=</public-key>
<private-key-format>ct:rsa-private-key-format</private-key-for\ <private-key-format>ct:rsa-private-key-format</private-key-for\
mat> mat>
<cleartext-private-key>BASE64VALUE=</cleartext-private-key> <cleartext-private-key>BASE64VALUE=</cleartext-private-key>
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</inline-definition> </inline-definition>
</end-entity-cert-with-key> </end-entity-cert-with-key>
</keystore-usage> </keystore-usage>
]]></artwork> ]]></sourcecode>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>The "ex-keystore-usage" YANG Module</name> <name>The "ex-keystore-usage" YANG Module</name>
<t>Following is the "ex-keystore-usage" module's YANG definition:</t > <t>Following is the "ex-keystore-usage" module's YANG definition:</t >
<artwork><![CDATA[ <sourcecode type="yang"><![CDATA[
module ex-keystore-usage { module ex-keystore-usage {
yang-version 1.1; yang-version 1.1;
namespace "https://example.com/ns/example-keystore-usage"; namespace "https://example.com/ns/example-keystore-usage";
prefix ex-keystore-usage; prefix ex-keystore-usage;
import ietf-keystore { import ietf-keystore {
prefix ks; prefix ks;
reference reference
"RFC CCCC: A YANG Data Model for a Keystore"; "RFC 9642: A YANG Data Model for a Keystore";
} }
organization organization
"Example Corporation"; "Example Corporation";
contact contact
"Author: YANG Designer <mailto:yang.designer@example.com>"; "Author: YANG Designer <mailto:yang.designer@example.com>";
description description
"This example module illustrates notable groupings defined "This example module illustrates notable groupings defined
in the 'ietf-keystore' module."; in the 'ietf-keystore' module.";
revision 2024-03-16 { revision 2024-03-16 {
description description
"Initial version"; "Initial version";
reference reference
"RFC CCCC: A YANG Data Model for a Keystore"; "RFC 9642: A YANG Data Model for a Keystore";
} }
container keystore-usage { container keystore-usage {
description description
"An illustration of the various keystore groupings."; "An illustration of the various keystore groupings.";
list symmetric-key { list symmetric-key {
key "name"; key "name";
leaf name { leaf name {
type string; type string;
description description
skipping to change at line 1162 skipping to change at line 1121
} }
list asymmetric-key-with-certs { list asymmetric-key-with-certs {
key "name"; key "name";
leaf name { leaf name {
type string; type string;
description description
"An arbitrary name for this key."; "An arbitrary name for this key.";
} }
uses ks:inline-or-keystore-asymmetric-key-with-certs-grouping; uses ks:inline-or-keystore-asymmetric-key-with-certs-grouping;
description description
"An asymmetric key and its associated certs, that may be "An asymmetric key and its associated certs that may be
configured locally or be a reference to an asymmetric key configured locally or be a reference to an asymmetric
(and its associated certs) in the keystore."; key (and its associated certs) in the keystore.";
} }
list end-entity-cert-with-key { list end-entity-cert-with-key {
key "name"; key "name";
leaf name { leaf name {
type string; type string;
description description
"An arbitrary name for this key."; "An arbitrary name for this key.";
} }
uses ks:inline-or-keystore-end-entity-cert-with-key-grouping; uses ks:inline-or-keystore-end-entity-cert-with-key-grouping;
description description
"An end-entity certificate and its associated asymmetric "An end-entity certificate and its associated asymmetric
key, that may be configured locally or be a reference key that may be configured locally or be a reference
to another certificate (and its associated asymmetric to another certificate (and its associated asymmetric
key) in the keystore."; key) in the keystore.";
} }
} }
} }
]]></artwork> ]]></sourcecode>
</section> </section>
</section> </section>
</section> </section>
<section anchor="keystore-yang-module"> <section anchor="keystore-yang-module">
<name>YANG Module</name> <name>YANG Module</name>
<t>This YANG module has normative references to <xref target="RFC8341"/> <t>This YANG module has normative references to <xref target="RFC8341"/>
and <xref target="I-D.ietf-netconf-crypto-types"/>.</t> and <xref target="RFC9640"/>.</t>
<t keepWithNext="true">&lt;CODE BEGINS&gt; file "ietf-keystore@2024-03-1
6.yang"</t> <sourcecode type="yang" name="ietf-keystore@2024-03-16.yang" markers="tr
<artwork><![CDATA[ ue"><![CDATA[
module ietf-keystore { module ietf-keystore {
yang-version 1.1; yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-keystore"; namespace "urn:ietf:params:xml:ns:yang:ietf-keystore";
prefix ks; prefix ks;
import ietf-netconf-acm { import ietf-netconf-acm {
prefix nacm; prefix nacm;
reference reference
"RFC 8341: Network Configuration Access Control Model"; "RFC 8341: Network Configuration Access Control Model";
} }
import ietf-crypto-types { import ietf-crypto-types {
prefix ct; prefix ct;
reference reference
"RFC AAAA: YANG Data Types and Groupings for Cryptography"; "RFC 9640: YANG Data Types and Groupings for Cryptography";
} }
organization organization
"IETF NETCONF (Network Configuration) Working Group"; "IETF NETCONF (Network Configuration) Working Group";
contact contact
"WG Web: https://datatracker.ietf.org/wg/netconf "WG Web: https://datatracker.ietf.org/wg/netconf
WG List: NETCONF WG list <mailto:netconf@ietf.org> WG List: NETCONF WG list <mailto:netconf@ietf.org>
Author: Kent Watsen <mailto:kent+ietf@watsen.net>"; Author: Kent Watsen <mailto:kent+ietf@watsen.net>";
description description
"This module defines a 'keystore' to centralize management "This module defines a 'keystore' to centralize management
of security credentials. of security credentials.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL',
'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED',
'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document
are to be interpreted as described in BCP 14 (RFC 2119)
(RFC 8174) when, and only when, they appear in all
capitals, as shown here.
Copyright (c) 2024 IETF Trust and the persons identified Copyright (c) 2024 IETF Trust and the persons identified
as authors of the code. All rights reserved. as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with Redistribution and use in source and binary forms, with
or without modification, is permitted pursuant to, and or without modification, is permitted pursuant to, and
subject to the license terms contained in, the Revised subject to the license terms contained in, the Revised
BSD License set forth in Section 4.c of the IETF Trust's BSD License set forth in Section 4.c of the IETF Trust's
Legal Provisions Relating to IETF Documents Legal Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info). (https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC CCCC This version of this YANG module is part of RFC 9642
(https://www.rfc-editor.org/info/rfcCCCC); see the RFC (https://www.rfc-editor.org/info/rfc9642); see the RFC
itself for full legal notices. itself for full legal notices.";
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL',
'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED',
'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document
are to be interpreted as described in BCP 14 (RFC 2119)
(RFC 8174) when, and only when, they appear in all
capitals, as shown here.";
revision 2024-03-16 { revision 2024-03-16 {
description description
"Initial version"; "Initial version";
reference reference
"RFC CCCC: A YANG Data Model for a Keystore"; "RFC 9642: A YANG Data Model for a Keystore";
} }
/****************/ /****************/
/* Features */ /* Features */
/****************/ /****************/
feature central-keystore-supported { feature central-keystore-supported {
description description
"The 'central-keystore-supported' feature indicates that "The 'central-keystore-supported' feature indicates that
the server supports the central keystore (i.e., fully the server supports the central keystore (i.e., fully
implements the 'ietf-keystore' module)."; implements the 'ietf-keystore' module).";
} }
feature inline-definitions-supported { feature inline-definitions-supported {
description description
"The 'inline-definitions-supported' feature indicates that "The 'inline-definitions-supported' feature indicates that
the server supports locally-defined keys."; the server supports locally defined keys.";
} }
feature asymmetric-keys { feature asymmetric-keys {
description description
"The 'asymmetric-keys' feature indicates that the server "The 'asymmetric-keys' feature indicates that the server
implements the /keystore/asymmetric-keys subtree."; implements the /keystore/asymmetric-keys subtree.";
} }
feature symmetric-keys { feature symmetric-keys {
skipping to change at line 1312 skipping to change at line 1271
/*****************/ /*****************/
/* Groupings */ /* Groupings */
/*****************/ /*****************/
grouping encrypted-by-grouping { grouping encrypted-by-grouping {
description description
"A grouping that defines a 'choice' statement that can be "A grouping that defines a 'choice' statement that can be
augmented into the 'encrypted-by' node, present in the augmented into the 'encrypted-by' node, present in the
'symmetric-key-grouping' and 'asymmetric-key-pair-grouping' 'symmetric-key-grouping' and 'asymmetric-key-pair-grouping'
groupings defined in RFC AAAA, enabling references to keys groupings defined in RFC 9640, enabling references to keys
in the central keystore."; in the central keystore.";
choice encrypted-by { choice encrypted-by {
nacm:default-deny-write; nacm:default-deny-write;
mandatory true; mandatory true;
description description
"A choice amongst other symmetric or asymmetric keys."; "A choice amongst other symmetric or asymmetric keys.";
case central-symmetric-key-ref { case central-symmetric-key-ref {
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "symmetric-keys"; if-feature "symmetric-keys";
leaf symmetric-key-ref { leaf symmetric-key-ref {
skipping to change at line 1346 skipping to change at line 1305
encrypted the associated key."; encrypted the associated key.";
} }
} }
} }
} }
// *-ref groupings // *-ref groupings
grouping central-asymmetric-key-certificate-ref-grouping { grouping central-asymmetric-key-certificate-ref-grouping {
description description
"Grouping for the reference to a certificate associated "A grouping for the reference to a certificate associated
with an asymmetric key stored in the central keystore."; with an asymmetric key stored in the central keystore.";
leaf asymmetric-key { leaf asymmetric-key {
nacm:default-deny-write; nacm:default-deny-write;
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "asymmetric-keys"; if-feature "asymmetric-keys";
type ks:central-asymmetric-key-ref; type ks:central-asymmetric-key-ref;
must '../certificate'; must '../certificate';
description description
"A reference to an asymmetric key in the keystore."; "A reference to an asymmetric key in the keystore.";
} }
skipping to change at line 1392 skipping to change at line 1351
choice inline-or-keystore { choice inline-or-keystore {
nacm:default-deny-write; nacm:default-deny-write;
mandatory true; mandatory true;
description description
"A choice between an inlined definition and a definition "A choice between an inlined definition and a definition
that exists in the keystore."; that exists in the keystore.";
case inline { case inline {
if-feature "inline-definitions-supported"; if-feature "inline-definitions-supported";
container inline-definition { container inline-definition {
description description
"Container to hold the local key definition."; "A container to hold the local key definition.";
uses ct:symmetric-key-grouping; uses ct:symmetric-key-grouping;
} }
} }
case central-keystore { case central-keystore {
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "symmetric-keys"; if-feature "symmetric-keys";
leaf central-keystore-reference { leaf central-keystore-reference {
type ks:central-symmetric-key-ref; type ks:central-symmetric-key-ref;
description description
"A reference to an symmetric key that exists in "A reference to a symmetric key that exists in
the central keystore."; the central keystore.";
} }
} }
} }
} }
grouping inline-or-keystore-asymmetric-key-grouping { grouping inline-or-keystore-asymmetric-key-grouping {
description description
"A grouping for the configuration of an asymmetric key. The "A grouping for the configuration of an asymmetric key. The
asymmetric key may be defined inline or as a reference to asymmetric key may be defined inline or as a reference to
an asymmetric key stored in the central keystore. an asymmetric key stored in the central keystore.
Servers that wish to define alternate keystore locations Servers that wish to define alternate keystore locations
SHOULD augment in custom 'case' statements enabling SHOULD augment in custom 'case' statements enabling
references to those alternate keystore locations."; references to those alternate keystore locations.";
choice inline-or-keystore { choice inline-or-keystore {
nacm:default-deny-write; nacm:default-deny-write;
mandatory true; mandatory true;
description description
"A choice between an inlined definition and a definition "A choice between an inlined definition and a definition
that exists in the keystore."; that exists in the keystore.";
case inline { case inline {
if-feature "inline-definitions-supported"; if-feature "inline-definitions-supported";
container inline-definition { container inline-definition {
description description
"Container to hold the local key definition."; "A container to hold the local key definition.";
uses ct:asymmetric-key-pair-grouping; uses ct:asymmetric-key-pair-grouping;
} }
} }
case central-keystore { case central-keystore {
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "asymmetric-keys"; if-feature "asymmetric-keys";
leaf central-keystore-reference { leaf central-keystore-reference {
type ks:central-asymmetric-key-ref; type ks:central-asymmetric-key-ref;
description description
"A reference to an asymmetric key that exists in "A reference to an asymmetric key that exists in
skipping to change at line 1468 skipping to change at line 1427
choice inline-or-keystore { choice inline-or-keystore {
nacm:default-deny-write; nacm:default-deny-write;
mandatory true; mandatory true;
description description
"A choice between an inlined definition and a definition "A choice between an inlined definition and a definition
that exists in the keystore."; that exists in the keystore.";
case inline { case inline {
if-feature "inline-definitions-supported"; if-feature "inline-definitions-supported";
container inline-definition { container inline-definition {
description description
"Container to hold the local key definition."; "A container to hold the local key definition.";
uses ct:asymmetric-key-pair-with-certs-grouping; uses ct:asymmetric-key-pair-with-certs-grouping;
} }
} }
case central-keystore { case central-keystore {
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "asymmetric-keys"; if-feature "asymmetric-keys";
leaf central-keystore-reference { leaf central-keystore-reference {
type ks:central-asymmetric-key-ref; type ks:central-asymmetric-key-ref;
description description
"A reference to an asymmetric-key (and all of its "A reference to an asymmetric key (and all of its
associated certificates) in the keystore, when associated certificates) in the keystore, when
this module is implemented."; this module is implemented.";
} }
} }
} }
} }
grouping inline-or-keystore-end-entity-cert-with-key-grouping { grouping inline-or-keystore-end-entity-cert-with-key-grouping {
description description
"A grouping for the configuration of an asymmetric key and "A grouping for the configuration of an asymmetric key and
skipping to change at line 1507 skipping to change at line 1466
choice inline-or-keystore { choice inline-or-keystore {
nacm:default-deny-write; nacm:default-deny-write;
mandatory true; mandatory true;
description description
"A choice between an inlined definition and a definition "A choice between an inlined definition and a definition
that exists in the keystore."; that exists in the keystore.";
case inline { case inline {
if-feature "inline-definitions-supported"; if-feature "inline-definitions-supported";
container inline-definition { container inline-definition {
description description
"Container to hold the local key definition."; "A container to hold the local key definition.";
uses ct:asymmetric-key-pair-with-cert-grouping; uses ct:asymmetric-key-pair-with-cert-grouping;
} }
} }
case central-keystore { case central-keystore {
if-feature "central-keystore-supported"; if-feature "central-keystore-supported";
if-feature "asymmetric-keys"; if-feature "asymmetric-keys";
container central-keystore-reference { container central-keystore-reference {
uses central-asymmetric-key-certificate-ref-grouping; uses central-asymmetric-key-certificate-ref-grouping;
description description
"A reference to a specific certificate associated with "A reference to a specific certificate associated with
an asymmetric key stored in the central keystore."; an asymmetric key stored in the central keystore.";
} }
} }
} }
} }
// the keystore grouping // the keystore grouping
grouping keystore-grouping { grouping keystore-grouping {
description description
"Grouping definition enables use in other contexts. If ever "A grouping definition enables use in other contexts. If ever
done, implementations MUST augment new 'case' statements done, implementations MUST augment new 'case' statements
into the various inline-or-keystore 'choice' statements to into the various inline-or-keystore 'choice' statements to
supply leafrefs to the model-specific location(s)."; supply leafrefs to the model-specific location(s).";
container asymmetric-keys { container asymmetric-keys {
nacm:default-deny-write; nacm:default-deny-write;
if-feature "asymmetric-keys"; if-feature "asymmetric-keys";
description description
"A list of asymmetric keys."; "A list of asymmetric keys.";
list asymmetric-key { list asymmetric-key {
key "name"; key "name";
skipping to change at line 1573 skipping to change at line 1532
uses ct:symmetric-key-grouping; uses ct:symmetric-key-grouping;
} }
} }
} }
/*********************************/ /*********************************/
/* Protocol accessible nodes */ /* Protocol accessible nodes */
/*********************************/ /*********************************/
container keystore { container keystore {
if-feature central-keystore-supported; if-feature "central-keystore-supported";
description description
"A central keystore containing a list of symmetric keys and "A central keystore containing a list of symmetric keys and
a list of asymmetric keys."; a list of asymmetric keys.";
nacm:default-deny-write; nacm:default-deny-write;
uses keystore-grouping { uses keystore-grouping {
augment "symmetric-keys/symmetric-key/key-type/encrypted-" augment "symmetric-keys/symmetric-key/key-type/encrypted-"
+ "symmetric-key/encrypted-symmetric-key/encrypted-by" { + "symmetric-key/encrypted-symmetric-key/encrypted-by" {
description description
"Augments in a choice statement enabling the encrypting "Augments in a choice statement enabling the encrypting
key to be any other symmetric or asymmetric key in the key to be any other symmetric or asymmetric key in the
skipping to change at line 1599 skipping to change at line 1558
+ "encrypted-by" { + "encrypted-by" {
description description
"Augments in a choice statement enabling the encrypting "Augments in a choice statement enabling the encrypting
key to be any other symmetric or asymmetric key in the key to be any other symmetric or asymmetric key in the
central keystore."; central keystore.";
uses encrypted-by-grouping; uses encrypted-by-grouping;
} }
} }
} }
} }
]]></artwork> ]]></sourcecode>
<t keepWithPrevious="true">&lt;CODE ENDS&gt;</t>
</section> </section>
</section> </section>
<section anchor="built-ins"> <section anchor="built-ins">
<name>Support for Built-in Keys</name> <name>Support for Built-In Keys</name>
<t>In some implementations, a server may support keys built into the serve r. <t>In some implementations, a server may support keys built into the serve r.
Built-in keys MAY be set during the manufacturing process or be dynami cally Built-in keys <bcp14>MAY</bcp14> be set during the manufacturing proce ss or be dynamically
generated the first time the server is booted or a particular service generated the first time the server is booted or a particular service
(e.g., SSH) is enabled.</t> (e.g., Secure Shell (SSH)) is enabled.</t>
<t>Built-in keys are "hidden" keys expected to be set by a vendor-specific process. <t>Built-in keys are "hidden" keys expected to be set by a vendor-specific process.
Any ability for operators to set and/or modify built-in keys is outsid e the Any ability for operators to set and/or modify built-in keys is outsid e the
scope of this document.</t> scope of this document.</t>
<t>The primary characteristic of the built-in keys is that they are provid ed <t>The primary characteristic of the built-in keys is that they are provid ed
by the server, as opposed to configuration. As such, they are present by the server, as opposed to being configured. As such, they are pres
in ent in
&lt;operational&gt; (<xref section="5.3" target="RFC8342"/>), and &lt; &lt;operational&gt; (<xref target="RFC8342" sectionFormat="of" section
system&gt; ="5.3"/>) and &lt;system&gt;
<xref target="I-D.ietf-netmod-system-config"/>, if implemented.</t> <xref target="I-D.ietf-netmod-system-config"/>, if implemented.</t>
<t>The example below illustrates what the keystore in &lt;operational&gt; <t>The example below illustrates what the keystore in &lt;operational&gt;
might look like for a server in its factory default state. Note that the might look like for a server in its factory default state. Note that the
built-in keys have the "or:origin" annotation value "or:system".</t> built-in keys have the "or:origin" annotation value "or:system".</t>
<artwork><![CDATA[
<sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore" <keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore"
xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types" xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types"
xmlns:or="urn:ietf:params:xml:ns:yang:ietf-origin" xmlns:or="urn:ietf:params:xml:ns:yang:ietf-origin"
or:origin="or:intended"> or:origin="or:intended">
<asymmetric-keys> <asymmetric-keys>
<asymmetric-key or:origin="or:system"> <asymmetric-key or:origin="or:system">
<name>Manufacturer-Generated Hidden Key</name> <name>Manufacturer-Generated Hidden Key</name>
<public-key-format>ct:subject-public-key-info-format</public-k\ <public-key-format>ct:subject-public-key-info-format</public-k\
skipping to change at line 1642 skipping to change at line 1602
<hidden-private-key/> <hidden-private-key/>
<certificates> <certificates>
<certificate> <certificate>
<name>Manufacturer-Generated IDevID Cert</name> <name>Manufacturer-Generated IDevID Cert</name>
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
</certificates> </certificates>
</asymmetric-key> </asymmetric-key>
</asymmetric-keys> </asymmetric-keys>
</keystore> </keystore>
]]></artwork> ]]></sourcecode>
<t>The following example illustrates how a single built-in key definition <t>The following example illustrates how a single built-in key definition
from the previous example has been propagated to &lt;running&gt;:</t> from the previous example has been propagated to &lt;running&gt;:</t>
<artwork><![CDATA[ <sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore" <keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore"
xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types"> xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types">
<asymmetric-keys> <asymmetric-keys>
<asymmetric-key> <asymmetric-key>
<name>Manufacturer-Generated Hidden Key</name> <name>Manufacturer-Generated Hidden Key</name>
<public-key-format>ct:subject-public-key-info-format</public-k\ <public-key-format>ct:subject-public-key-info-format</public-k\
ey-format> ey-format>
<public-key>BASE64VALUE=</public-key> <public-key>BASE64VALUE=</public-key>
skipping to change at line 1670 skipping to change at line 1630
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
<certificate> <certificate>
<name>Deployment-Specific LDevID Cert</name> <name>Deployment-Specific LDevID Cert</name>
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
</certificates> </certificates>
</asymmetric-key> </asymmetric-key>
</asymmetric-keys> </asymmetric-keys>
</keystore> </keystore>
]]></artwork> ]]></sourcecode>
<t>After the above configuration is applied, &lt;operational&gt; should ap pear <t>After the above configuration is applied, &lt;operational&gt; should ap pear
as follows:</t> as follows:</t>
<artwork><![CDATA[ <sourcecode type="xml"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
<keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore" <keystore xmlns="urn:ietf:params:xml:ns:yang:ietf-keystore"
xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types" xmlns:ct="urn:ietf:params:xml:ns:yang:ietf-crypto-types"
xmlns:or="urn:ietf:params:xml:ns:yang:ietf-origin" xmlns:or="urn:ietf:params:xml:ns:yang:ietf-origin"
or:origin="or:intended"> or:origin="or:intended">
<asymmetric-keys> <asymmetric-keys>
<asymmetric-key or:origin="or:system"> <asymmetric-key or:origin="or:system">
<name>Manufacturer-Generated Hidden Key</name> <name>Manufacturer-Generated Hidden Key</name>
<public-key-format>ct:subject-public-key-info-format</public-k\ <public-key-format>ct:subject-public-key-info-format</public-k\
skipping to change at line 1700 skipping to change at line 1660
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
<certificate or:origin="or:intended"> <certificate or:origin="or:intended">
<name>Deployment-Specific LDevID Cert</name> <name>Deployment-Specific LDevID Cert</name>
<cert-data>BASE64VALUE=</cert-data> <cert-data>BASE64VALUE=</cert-data>
</certificate> </certificate>
</certificates> </certificates>
</asymmetric-key> </asymmetric-key>
</asymmetric-keys> </asymmetric-keys>
</keystore> </keystore>
]]></artwork> ]]></sourcecode>
</section> </section>
<section> <section>
<name>Encrypting Keys in Configuration</name> <name>Encrypting Keys in Configuration</name>
<t>This section describes an approach that enables both the symmetric <t>This section describes an approach that enables both the symmetric
and asymmetric keys on a server to be encrypted, such that traditional and asymmetric keys on a server to be encrypted, such that
backup/restore procedures can be used without concern for raw key backup/restore procedures can be used without concern for raw key
data being compromised when in transit.</t> data being compromised when in transit.</t>
<t>The approach presented in this section is not normative. This section <t>The approach presented in this section is not normative. This section
answers how a configuration containing secrets that are encrypted by a answers how a configuration containing secrets that are encrypted by a
built-in key (<xref target="built-ins"/>) can be backup'ed from one se built-in key (<xref target="built-ins"/>) can be backed up from one se
rver rver
and restored on a different server, when each server has unique master and restored on a different server when each server has unique primary
keys. keys.
The API defined by the "ietf-keystore" YANG module presented in this The API defined by the "ietf-keystore" YANG module presented in this
document is sufficient to support the workflow described in this secti on.</t> document is sufficient to support the workflow described in this secti on.</t>
<section toc="exclude"> <section toc="exclude">
<name>Key Encryption Key</name> <name>Key Encryption Key</name>
<t>The ability to encrypt configured keys is predicated on the <t>The ability to encrypt configured keys is predicated on the
existence of a "key encryption key" (KEK). There may be any existence of a key encryption key (KEK). There may be any
number of KEKs in a server. A KEK, by its namesake, is a key number of KEKs in a server. A KEK, by its namesake, is a key
that is used to encrypt other keys. A KEK MAY be either a that is used to encrypt other keys. A KEK <bcp14>MAY</bcp14> be eith er a
symmetric key or an asymmetric key.</t> symmetric key or an asymmetric key.</t>
<t>If a KEK is a symmetric key, then the server MUST provide an API for <t>If a KEK is a symmetric key, then the server <bcp14>MUST</bcp14> prov ide an API for
administrators to encrypt other keys without needing to know administrators to encrypt other keys without needing to know
the symmetric key's value. If the KEK is an asymmetric key, then the symmetric key's value. If the KEK is an asymmetric key, then
the server SHOULD provide an API enabling the encryption of other the server <bcp14>SHOULD</bcp14> provide an API enabling the encrypt ion of other
keys or, alternatively, assume the administrators can do so themselv es keys or, alternatively, assume the administrators can do so themselv es
using the asymmetric key's public half.</t> using the asymmetric key's public half.</t>
<t>A server MUST possess access to the KEK, or an API using the KEK, <t>A server <bcp14>MUST</bcp14> possess access to the KEK, or an API usi ng the KEK,
so that it can decrypt the other keys in the configuration at runtim e.</t> so that it can decrypt the other keys in the configuration at runtim e.</t>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>Configuring Encrypted Keys</name> <name>Configuring Encrypted Keys</name>
<t>Each time a new key is configured, it SHOULD be encrypted by <t>Each time a new key is configured, it <bcp14>SHOULD</bcp14> be encryp
a KEK.</t> ted by
<t>In "ietf-crypto-types" <xref target="I-D.ietf-netconf-crypto-types"/> a KEK.</t>
,
<t>In the "ietf-crypto-types" module <xref target="RFC9640"/>,
the format for encrypted values is described by identity statements the format for encrypted values is described by identity statements
derived from the "symmetrically-encrypted-value-format" and derived from the "symmetrically-encrypted-value-format" and
"asymmetrically-encrypted-value-format" identity statements.</t> "asymmetrically-encrypted-value-format" identity statements.</t>
<t>Implementations of servers implementing the "ietf-keystore" module <t>Implementations of servers implementing the "ietf-keystore" module
SHOULD provide an API that simultaneously generates a key and encryp <bcp14>SHOULD</bcp14> provide an API that simultaneously generates a
ts key and encrypts
the generated key using a KEK. Thus the cleartext value of the newl the generated key using a KEK. Thus, the cleartext value of the new
y ly
generated key may never be known to the administrators generating th e keys. generated key may never be known to the administrators generating th e keys.
Such API is defined in the "ietf-ssh-common" and the "ietf-tls-commo Such an API is defined in the "ietf-ssh-common" and "ietf-tls-common
n" "
YANG modules defined in <xref target="I-D.ietf-netconf-ssh-client-se YANG modules defined in <xref target="RFC9644"/>
rver"/>, and <xref target="RFC9645"/>, respectively.</t>
and <xref target="I-D.ietf-netconf-tls-client-server"/>, respectivel
y.</t>
<t>In case the server implementation does not provide such an API, then <t>In case the server implementation does not provide such an API, then
the generating and encrypting steps MAY be performed outside the the generating and encrypting steps <bcp14>MAY</bcp14> be performed
server, e.g., by an administrator with special access control rights outside the
(e.g., an organization's crypto officer).</t> server, e.g., by an administrator with special access control rights
(such as an organization's crypto officer).</t>
<t>In either case, the encrypted key can be configured into the keystore <t>In either case, the encrypted key can be configured into the keystore
using either the "encrypted-symmetric-key" (for symmetric keys) or t he using either the "encrypted-symmetric-key" (for symmetric keys) or t he
"encrypted-private-key" (for asymmetric keys) nodes. These two node s "encrypted-private-key" (for asymmetric keys) nodes. These two node s
contain both the encrypted raw key value as well as a reference to contain both the encrypted raw key value as well as a reference to
the KEK that encrypted the key.</t> the KEK that encrypted the key.</t>
</section> </section>
<section toc="exclude"> <section toc="exclude">
<name>Migrating Configuration to Another Server</name> <name>Migrating Configuration to Another Server</name>
<t>When a KEK is used to encrypt other keys, migrating the configuration <t>When a KEK is used to encrypt other keys, migrating the configuration
to another server is only possible if the second server has the same KEK. to another server is only possible if the second server has the same KEK.
How the second server comes to have the same KEK is discussed in thi s How the second server comes to have the same KEK is discussed in thi s
section.</t> section.</t>
<t>In some deployments, mechanisms outside the scope of this document <t>In some deployments, mechanisms outside the scope of this document
may be used to migrate a KEK from one server to another. That said, may be used to migrate a KEK from one server to another. That said,
beware that the ability to do so typically entails having access to beware that the ability to do so typically entails having access to
the first server but, in some scenarios, the first server may no the first server; however, in some scenarios, the first server may n o
longer be operational.</t> longer be operational.</t>
<t>In other deployments, an organization's crypto officer, possessing a <t>In other deployments, an organization's crypto officer, possessing a
KEK's cleartext value, configures the same KEK on the second server, KEK's cleartext value, configures the same KEK on the second server,
presumably as a hidden key or a key protected by access-control, so presumably as a hidden key or a key protected by access control, so
that the cleartext value is not that the cleartext value is not
disclosed to regular administrators. However, this approach creates disclosed to regular administrators. However, this approach creates
high-coupling to and dependency on the crypto officers that does not high coupling to and dependency on the crypto officers that does not
scale in production environments.</t> scale in production environments.</t>
<t>In order to decouple the crypto officers from the regular administrat ors, <t>In order to decouple the crypto officers from the regular administrat ors,
a special KEK, called the "master key" (MK), may be used.</t> a special KEK, called the "primary key" (PK), may be used.</t>
<t>A MK is commonly a globally-unique built-in (see <xref target="built- <t>A PK is commonly a globally unique built-in (see <xref target="built-
ins"/>) ins"/>)
asymmetric key. The private raw key value, due to its long lifetime, is hidden asymmetric key. The private raw key value, due to its long lifetime, is hidden
(i.e., "hidden-private-key" in <xref section="2.1.4.5." target="I-D. ietf-netconf-crypto-types"/>). The raw public key value is often (i.e., "hidden-private-key"; see <xref target="RFC9640" sectionForma t="of" section="2.1.4.5."/>). The raw public key value is often
contained in an identity certificate (e.g., IDevID). How to contained in an identity certificate (e.g., IDevID). How to
configure a MK during the manufacturing process is outside the configure a PK during the manufacturing process is outside the
scope of this document.</t> scope of this document.</t>
<t>Assuming the server has a MK, the MK can be used to encrypt a <t>Assuming the server has a PK, the PK can be used to encrypt a
"shared KEK", which is then used to encrypt the keys configured "shared KEK", which is then used to encrypt the keys configured
by regular administrators.</t> by regular administrators.</t>
<t>With this extra level of indirection, it is possible for a <t>With this extra level of indirection, it is possible for a
crypto officer to encrypt the same KEK for a multiplicity of crypto officer to encrypt the same KEK for a multiplicity of
servers offline using the public key contained in their identity servers offline using the public key contained in their identity
certificates. The crypto officer can then safely handoff certificates. The crypto officer can then safely hand off
the encrypted KEKs to regular administrators responsible for the encrypted KEKs to regular administrators responsible for
server installations, including migrations.</t> server installations, including migrations.</t>
<t>In order to migrate the configuration from a first server, an <t>In order to migrate the configuration from a first server, an
administrator would need to make just a single modification to administrator would need to make just a single modification to
the configuration before loading it onto a second server, which the configuration before loading it onto a second server, which
is to replace the encrypted KEK keystore entry from the first is to replace the encrypted KEK keystore entry from the first
server with the encrypted KEK for the second server. Upon doing server with the encrypted KEK for the second server. Upon doing
this, the configuration (containing many encrypted keys) can be this, the configuration (containing many encrypted keys) can be
loaded into the second server while enabling the second server loaded into the second server while enabling the second server
to decrypt all the encrypted keys in the configuration.</t> to decrypt all the encrypted keys in the configuration.</t>
<t>The following diagram illustrates this idea:</t> <t>The following diagram illustrates this idea:</t>
<artwork><![CDATA[ <artwork><![CDATA[
+-------------+ +-------------+ +-------------+ +-------------+
| shared KEK | | shared KEK | | shared KEK | | shared KEK |
|(unencrypted)|-------------------------------> | (encrypted) | |(unencrypted)|-------------------------------> | (encrypted) |
+-------------+ encrypts offline using +-------------+ +-------------+ encrypts offline using +-------------+
^ each server's MK | ^ each server's PK |
| | | |
| | | |
| possesses \o | | possesses \o |
+-------------- |\ | +-------------- |\ |
/ \ shares with | / \ shares with |
crypto +--------------------+ crypto +--------------------+
officer | officer |
| |
| |
+----------------------+ | +----------------------+ +----------------------+ | +----------------------+
| server-1 | | | server-2 | | server-1 | | | server-2 |
| configuration | | | configuration | | configuration | | | configuration |
| | | | | | | | | |
| | | | | | | | | |
| +----------------+ | | | +----------------+ | | +----------------+ | | | +----------------+ |
| | MK-1 | | | | | MK-2 | | | | PK-1 | | | | | PK-2 | |
| | (hidden) | | | | | (hidden) | | | | (hidden) | | | | | (hidden) | |
| +----------------+ | | | +----------------+ | | +----------------+ | | | +----------------+ |
| ^ | | | ^ | | ^ | | | ^ |
| | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| | encrypted | | | | encrypted | | | encrypted | | | | encrypted |
| | by | | | | by | | | by | | | | by |
| | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| +----------------+ | | | +----------------+ | | +----------------+ | | | +----------------+ |
skipping to change at line 1857 skipping to change at line 1817
]]></artwork> ]]></artwork>
</section> </section>
</section> </section>
<section> <section>
<name>Security Considerations</name> <name>Security Considerations</name>
<section> <section>
<name>Security of Data at Rest and in Motion</name> <name>Security of Data at Rest and in Motion</name>
<t>The YANG module defined in this document defines a mechanism called a <t>The YANG module defined in this document defines a mechanism called a
"keystore" that intends to protect its contents from unauthorized "keystore" that intends to protect its contents from unauthorized
disclosure and modification.</t> disclosure and modification.</t>
<t>In order to satisfy the expectations of a "keystore", it <t>In order to satisfy the expectations of a keystore, it
is RECOMMENDED that server implementations ensure that the keystore is <bcp14>RECOMMENDED</bcp14> that server implementations ensure tha
contents are encrypted when persisted to non-volatile memory, t the keystore
and ensure that the keystore contents that have been decrypted contents are encrypted when persisted to non-volatile memory
in volatile memory are zeroized when not in use.</t> and that the keystore contents that have been decrypted
<t>The keystore contents may be encrypted either by encrypting in volatile memory are zeroized when not in use.</t>
<t>The keystore contents may be encrypted by either encrypting
the contents individually (e.g., using the "encrypted" value the contents individually (e.g., using the "encrypted" value
formats) or, in case cleartext values are used (which is NOT formats) or using persistence-layer-level encryption. If storing cle
RECOMMENDED per <xref section="3.5" target="I-D.ietf-netconf-crypto- artext values (which is <bcp14>NOT RECOMMENDED</bcp14> per <xref target="RFC9640
types"/>), " sectionFormat="of" section="3.5"/>), then persistence-layer-level encryption <
then, e.g., disk-level encryption may be used.</t> bcp14>SHOULD</bcp14> be used to protect the data at rest.</t>
<t>If the keystore contents are not encrypted when persisted, <t>If the keystore contents are not encrypted when persisted,
then server implementations MUST ensure the persisted storage then server implementations <bcp14>MUST</bcp14> ensure the persisted storage
is inaccessible.</t> is inaccessible.</t>
</section> </section>
<section> <section>
<name>Unconstrained Private Key Usage</name> <name>Unconstrained Private Key Usage</name>
<t>This module enables the configuration of private keys without <t>This module enables the configuration of private keys without
constraints on their usage, e.g., what operations the key is constraints on their usage, e.g., what operations the key is
allowed to be used for (e.g., signature, decryption, both).</t> allowed to be used for (such as signature, decryption, or both).</t>
<t>This module also does not constrain the usage of the associated <t>This module also does not constrain the usage of the associated
public keys, other than in the context of a configured certificate public keys other than in the context of a configured certificate
(e.g., an identity certificate), in which case the key usage is (e.g., an identity certificate), in which case the key usage is
constrained by the certificate.</t> constrained by the certificate.</t>
</section> </section>
<section anchor="sec-mod"> <section anchor="sec-mod">
<name>Considerations for the "ietf-keystore" YANG Module</name>
<t>This section follows the template defined in <xref section="3.7.1" ta <name>Security Considerations for the "ietf-keystore" YANG Module</name>
rget="RFC8407"/>.</t> <t>This section is modeled after the template defined in <xref target="R
<t>The YANG module defined in this document is designed to be accessed v FC8407" sectionFormat="of" section="3.7.1"/>.</t>
ia YANG
based management protocols, such as NETCONF <xref target="RFC6241"/> <t>The ietf-keystore YANG module defines a data model that is designed t
and o be accessed via YANG-based management protocols, such as NETCONF <xref target=
RESTCONF <xref target="RFC8040"/>. Both of these protocols have man "RFC6241"/> and RESTCONF <xref target="RFC8040"/>. These protocols have mandator
datory-to-implement y-to-implement secure transport layers (e.g., SSH <xref target="RFC4252"/>, TLS
secure transport layers (e.g., SSH, TLS) with mutual authentication. <xref target="RFC8446"/>, and QUIC <xref target="RFC9000"/>) and mandatory-to-im
</t> plement mutual authentication.
<t>The Network Access Control Model (NACM) <xref target="RFC8341"/> prov </t>
ides the means
to restrict access for particular users to a pre-configured subset o <t>The Network Configuration Access Control Model (NACM) <xref
f all available target="RFC8341"/> provides the means to restrict access for
protocol operations and content.</t> particular users to a preconfigured subset
<t>Please be aware that this YANG module uses groupings from of all available protocol operations and
content.</t>
<t>Please be aware that this YANG module uses groupings from
other YANG modules that define nodes that may be considered other YANG modules that define nodes that may be considered
sensitive or vulnerable in network environments. Please sensitive or vulnerable in network environments. Please
review the Security Considerations for dependent YANG modules review the Security Considerations for dependent YANG modules
for information as to which nodes may be considered sensitive for information as to which nodes may be considered sensitive
or vulnerable in network environments.</t> or vulnerable in network environments.</t>
<t>Some of the readable data nodes defined in this YANG module
<t>Some of the readable data nodes in this YANG module
may be considered sensitive or vulnerable in some network may be considered sensitive or vulnerable in some network
environments. It is thus important to control read access environments. It is thus important to control read access
(e.g., via get, get-config, or notification) to these (e.g., via get, get-config, or notification) to these
data nodes. The following subtrees and data nodes have particular data nodes. These are the subtrees and data nodes and their
sensitivity/vulnerability: sensitivity/vulnerability:
</t> </t>
<ul spacing="normal"> <dl spacing="normal" newline="true">
<li> <dt>The "cleartext-symmetric-key" node:</dt>
<t>The "cleartext-symmetric-key" node: <dd>This node, imported from the "symmetric-key-grouping"
</t> grouping defined in <xref target="RFC9640"/>, is
<ul empty="true">
<li>The "cleartext-symmetric-key" node, imported from the "symmetr
ic-key-grouping"
grouping defined in <xref target="I-D.ietf-netconf-crypto-ty
pes"/> is
additionally sensitive to read operations such that, additionally sensitive to read operations such that,
in normal use cases, it should never be returned to a client . in normal use cases, it should never be returned to a client .
For this reason, the NACM extension "default-deny-all" was For this reason, the NACM extension "default-deny-all" was
applied to it in <xref target="I-D.ietf-netconf-crypto-types applied to it in <xref target="RFC9640"/>.</dd>
"/>.</li>
</ul> <dt>The "cleartext-private-key" node:</dt>
</li> <dd>This node, defined in the "asymmetric-key-pair-grouping"
<li> grouping in <xref target="RFC9640"/>, is
<t>The "cleartext-private-key" node:
</t>
<ul empty="true">
<li>The "cleartext-private-key" node defined in the "asymmetric-ke
y-pair-grouping"
grouping defined in <xref target="I-D.ietf-netconf-crypto-ty
pes"/> is
additionally sensitive to read operations such that, in additionally sensitive to read operations such that, in
normal use cases, it should never be returned to a client. For this normal use cases, it should never be returned to a client. For this
reason, the NACM extension "default-deny-all" is applied reason, the NACM extension "default-deny-all" is applied
to it in <xref target="I-D.ietf-netconf-crypto-types"/>.</li to it in <xref target="RFC9640"/>.</dd>
> </dl>
</ul> <t>All the writable data nodes defined by this YANG module, both in the
</li>
</ul>
<t>All the writable data nodes defined by this module, both in the
"grouping" statements as well as the protocol-accessible "keystore" "grouping" statements as well as the protocol-accessible "keystore"
instance, may be considered sensitive or vulnerable in some network instance, may be considered sensitive or vulnerable in some network
environments. For instance, any modification to a key or reference environments. For instance, any modification to a key or reference
to a key may dramatically alter the implemented security policy. to a key may dramatically alter the implemented security policy.
For this reason, the NACM extension "default-deny-write" has been For this reason, the NACM extension "default-deny-write" has been
set for all data nodes defined in this module.</t> set for all data nodes defined in this module.</t>
<t>This module does not define any "rpc" or "action" statements, and <t>This YANG module does not define any "rpc" or "action" statements, an d
thus the security considerations for such is not provided here.</t> thus the security considerations for such is not provided here.</t>
<t>Built-in key types SHOULD be either hidden and/or encrypted (not <t>Built-in key types <bcp14>SHOULD</bcp14> be hidden and/or encrypted ( not
cleartext). If this is not possible, access control mechanisms cleartext). If this is not possible, access control mechanisms
like NACM SHOULD be used to limit access to the key's secret data like NACM <bcp14>SHOULD</bcp14> be used to limit access to the key's secret data
to only the most trusted authorized clients (e.g., belonging to to only the most trusted authorized clients (e.g., belonging to
an organization’s crypto officer).</t> an organization's crypto officer).</t>
</section> </section>
</section> </section>
<section> <section>
<name>IANA Considerations</name> <name>IANA Considerations</name>
<section> <section>
<name>The "IETF XML" Registry</name> <name>The IETF XML Registry</name>
<t>This document registers one URI in the "ns" subregistry of the <t>IANA has registered the following URI in the "ns" registry of
IETF XML Registry <xref target="RFC3688"/>. Following the format the "IETF XML Registry" <xref target="RFC3688"/>.</t>
in <xref target="RFC3688"/>, the following registration is <dl spacing="compact">
requested:</t> <dt>URI:</dt><dd> urn:ietf:params:xml:ns:yang:ietf-keystore</dd>
<artwork><![CDATA[ <dt>Registrant Contact:</dt><dd> The IESG</dd>
URI: urn:ietf:params:xml:ns:yang:ietf-keystore <dt>XML:</dt><dd>N/A; the requested URI is an XML namespace.</dd>
Registrant Contact: The IESG </dl>
XML: N/A, the requested URI is an XML namespace.
]]></artwork>
</section> </section>
<section> <section>
<name>The "YANG Module Names" Registry</name> <name>The YANG Module Names Registry</name>
<t>This document registers one YANG module in the <t>IANA has registered the following YANG module in the
YANG Module Names registry <xref target="RFC6020"/>. "YANG Module Names" registry defined in <xref target="RFC6020"/>.
Following the format in <xref target="RFC6020"/>, the </t>
following registration is requested:</t> <dl spacing="compact">
<artwork><![CDATA[ <dt>Name:</dt><dd>ietf-keystore</dd>
name: ietf-keystore <dt>Maintained by IANA:</dt><dd>N</dd>
namespace: urn:ietf:params:xml:ns:yang:ietf-keystore <dt>Namespace:</dt><dd>urn:ietf:params:xml:ns:yang:ietf-keystore</dd>
prefix: ks <dt>Prefix:</dt><dd>ks</dd>
reference: RFC CCCC <dt>Reference:</dt><dd>RFC 9642</dd>
]]></artwork> </dl>
</section> </section>
</section> </section>
</middle> </middle>
<back> <back>
<displayreference target="I-D.ietf-netmod-system-config" to="NETMOD-SYSTEM-CONFI
G"/>
<displayreference target="I-D.ietf-netconf-http-client-server" to="HTTP-CLIENT-S
ERVER"/>
<displayreference target="I-D.ietf-netconf-netconf-client-server" to="NETCONF-CL
IENT-SERVER"/>
<displayreference target="I-D.ietf-netconf-restconf-client-server" to="RESTCONF-
CLIENT-SERVER"/>
<references> <references>
<name>References</name> <name>References</name>
<references> <references>
<name>Normative References</name> <name>Normative References</name>
<reference anchor="RFC2119" target="https://www.rfc-editor.org/info/rfc2
119" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.2119.xml"> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.21
<front> 19.xml"/>
<title>Key words for use in RFCs to Indicate Requirement Levels</tit <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.42
le> 52.xml"/>
<author fullname="S. Bradner" initials="S." surname="Bradner"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.60
<date month="March" year="1997"/> 20.xml"/>
<abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.62
<t>In many standards track documents several words are used to sig 41.xml"/>
nify the requirements in the specification. These words are often capitalized. T <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.79
his document defines these words as they should be interpreted in IETF documents 50.xml"/>
. This document specifies an Internet Best Current Practices for the Internet Co <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.80
mmunity, and requests discussion and suggestions for improvements.</t> 40.xml"/>
</abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.81
</front> 74.xml"/>
<seriesInfo name="BCP" value="14"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<seriesInfo name="RFC" value="2119"/> 41.xml"/>
<seriesInfo name="DOI" value="10.17487/RFC2119"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.84
</reference> 46.xml"/>
<reference anchor="RFC6020" target="https://www.rfc-editor.org/info/rfc6 <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.90
020" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.6020.xml"> 00.xml"/>
<front>
<title>YANG - A Data Modeling Language for the Network Configuration <!-- [I-D.ietf-netconf-crypto-types] companion document RFC 9640 -->
Protocol (NETCONF)</title> <reference anchor="RFC9640" target="https://www.rfc-editor.org/info/rfc9
<author fullname="M. Bjorklund" initials="M." role="editor" surname= 640">
"Bjorklund"/> <front>
<date month="October" year="2010"/> <title>YANG Data Types and Groupings for Cryptography</title>
<abstract> <author initials="K." surname="Watsen" fullname="Kent Watsen">
<t>YANG is a data modeling language used to model configuration an <organization>Watsen Networks</organization>
d state data manipulated by the Network Configuration Protocol (NETCONF), NETCON </author>
F remote procedure calls, and NETCONF notifications. [STANDARDS-TRACK]</t> <date month="October" year="2024"/>
</abstract> </front>
</front> <seriesInfo name="RFC" value="9640"/>
<seriesInfo name="RFC" value="6020"/> <seriesInfo name="DOI" value="10.17487/RFC9640"/>
<seriesInfo name="DOI" value="10.17487/RFC6020"/> </reference>
</reference>
<reference anchor="RFC7950" target="https://www.rfc-editor.org/info/rfc7
950" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.7950.xml">
<front>
<title>The YANG 1.1 Data Modeling Language</title>
<author fullname="M. Bjorklund" initials="M." role="editor" surname=
"Bjorklund"/>
<date month="August" year="2016"/>
<abstract>
<t>YANG is a data modeling language used to model configuration da
ta, state data, Remote Procedure Calls, and notifications for network management
protocols. This document describes the syntax and semantics of version 1.1 of t
he YANG language. YANG version 1.1 is a maintenance release of the YANG language
, addressing ambiguities and defects in the original specification. There are a
small number of backward incompatibilities from YANG version 1. This document al
so specifies the YANG mappings to the Network Configuration Protocol (NETCONF).<
/t>
</abstract>
</front>
<seriesInfo name="RFC" value="7950"/>
<seriesInfo name="DOI" value="10.17487/RFC7950"/>
</reference>
<reference anchor="RFC8341" target="https://www.rfc-editor.org/info/rfc8
341" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8341.xml">
<front>
<title>Network Configuration Access Control Model</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="March" year="2018"/>
<abstract>
<t>The standardization of network configuration interfaces for use
with the Network Configuration Protocol (NETCONF) or the RESTCONF protocol requ
ires a structured and secure operating environment that promotes human usability
and multi-vendor interoperability. There is a need for standard mechanisms to r
estrict NETCONF or RESTCONF protocol access for particular users to a preconfigu
red subset of all available NETCONF or RESTCONF protocol operations and content.
This document defines such an access control model.</t>
<t>This document obsoletes RFC 6536.</t>
</abstract>
</front>
<seriesInfo name="STD" value="91"/>
<seriesInfo name="RFC" value="8341"/>
<seriesInfo name="DOI" value="10.17487/RFC8341"/>
</reference>
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D
.ietf-netconf-crypto-types.xml"/>
</references> </references>
<references> <references>
<name>Informative References</name> <name>Informative References</name>
<reference anchor="RFC3688" target="https://www.rfc-editor.org/info/rfc3 <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.36
688" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.3688.xml"> 88.xml"/>
<front> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.82
<title>The IETF XML Registry</title> 59.xml"/>
<author fullname="M. Mealling" initials="M." surname="Mealling"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<date month="January" year="2004"/> 40.xml"/>
<abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<t>This document describes an IANA maintained registry for IETF st 42.xml"/>
andards which use Extensible Markup Language (XML) related items such as Namespa <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.84
ces, Document Type Declarations (DTDs), Schemas, and Resource Description Framew 07.xml"/>
ork (RDF) Schemas.</t> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.87
</abstract> 92.xml"/>
</front>
<seriesInfo name="BCP" value="81"/> <!-- [I-D.ietf-netconf-trust-anchors] companion document RFC 9641-->
<seriesInfo name="RFC" value="3688"/> <reference anchor="RFC9641" target="https://www.rfc-editor.org/info/rfc9
<seriesInfo name="DOI" value="10.17487/RFC3688"/> 641">
</reference> <front>
<reference anchor="RFC6241" target="https://www.rfc-editor.org/info/rfc6 <title>A YANG Data Model for a Truststore</title>
241" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.6241.xml"> <author initials="K." surname="Watsen" fullname="Kent Watsen">
<front> <organization>Watsen Networks</organization>
<title>Network Configuration Protocol (NETCONF)</title> </author>
<author fullname="R. Enns" initials="R." role="editor" surname="Enns <date month="October" year="2024"/>
"/> </front>
<author fullname="M. Bjorklund" initials="M." role="editor" surname= <seriesInfo name="RFC" value="9641"/>
"Bjorklund"/> <seriesInfo name="DOI" value="10.17487/RFC9641"/>
<author fullname="J. Schoenwaelder" initials="J." role="editor" surn </reference>
ame="Schoenwaelder"/>
<author fullname="A. Bierman" initials="A." role="editor" surname="B <!-- [I-D.ietf-netconf-tcp-client-server] companion document RFC 9643 -->
ierman"/> <reference anchor="RFC9643" target="https://www.rfc-editor.org/info/rfc9
<date month="June" year="2011"/> 643">
<abstract>
<t>The Network Configuration Protocol (NETCONF) defined in this do
cument provides mechanisms to install, manipulate, and delete the configuration
of network devices. It uses an Extensible Markup Language (XML)-based data encod
ing for the configuration data as well as the protocol messages. The NETCONF pro
tocol operations are realized as remote procedure calls (RPCs). This document ob
soletes RFC 4741. [STANDARDS-TRACK]</t>
</abstract>
</front>
<seriesInfo name="RFC" value="6241"/>
<seriesInfo name="DOI" value="10.17487/RFC6241"/>
</reference>
<reference anchor="RFC8040" target="https://www.rfc-editor.org/info/rfc8
040" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8040.xml">
<front>
<title>RESTCONF Protocol</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<author fullname="K. Watsen" initials="K." surname="Watsen"/>
<date month="January" year="2017"/>
<abstract>
<t>This document describes an HTTP-based protocol that provides a
programmatic interface for accessing data defined in YANG, using the datastore c
oncepts defined in the Network Configuration Protocol (NETCONF).</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8040"/>
<seriesInfo name="DOI" value="10.17487/RFC8040"/>
</reference>
<reference anchor="RFC8174" target="https://www.rfc-editor.org/info/rfc8
174" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8174.xml">
<front>
<title>Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words</ti
tle>
<author fullname="B. Leiba" initials="B." surname="Leiba"/>
<date month="May" year="2017"/>
<abstract>
<t>RFC 2119 specifies common key words that may be used in protoco
l specifications. This document aims to reduce the ambiguity by clarifying that
only UPPERCASE usage of the key words have the defined special meanings.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="14"/>
<seriesInfo name="RFC" value="8174"/>
<seriesInfo name="DOI" value="10.17487/RFC8174"/>
</reference>
<reference anchor="RFC8340" target="https://www.rfc-editor.org/info/rfc8
340" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8340.xml">
<front>
<title>YANG Tree Diagrams</title>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<author fullname="L. Berger" initials="L." role="editor" surname="Be
rger"/>
<date month="March" year="2018"/>
<abstract>
<t>This document captures the current syntax used in YANG module t
ree diagrams. The purpose of this document is to provide a single location for t
his definition. This syntax may be updated from time to time based on the evolut
ion of the YANG language.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="215"/>
<seriesInfo name="RFC" value="8340"/>
<seriesInfo name="DOI" value="10.17487/RFC8340"/>
</reference>
<reference anchor="RFC8342" target="https://www.rfc-editor.org/info/rfc8
342" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8342.xml">
<front> <front>
<title>Network Management Datastore Architecture (NMDA)</title> <title>YANG Groupings for TCP Clients and TCP Servers</title>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/> <author initials="K." surname="Watsen" fullname="Kent Watsen">
<author fullname="J. Schoenwaelder" initials="J." surname="Schoenwae <organization>Watsen Networks</organization>
lder"/> </author>
<author fullname="P. Shafer" initials="P." surname="Shafer"/> <author initials="M." surname="Scharf" fullname="Michael Scharf">
<author fullname="K. Watsen" initials="K." surname="Watsen"/> <organization>Hochschule Esslingen - University of Applied
<author fullname="R. Wilton" initials="R." surname="Wilton"/> Sciences</organization>
<date month="March" year="2018"/> </author>
<abstract> <date month="October" year="2024"/>
<t>Datastores are a fundamental concept binding the data models wr
itten in the YANG data modeling language to network management protocols such as
the Network Configuration Protocol (NETCONF) and RESTCONF. This document define
s an architectural framework for datastores based on the experience gained with
the initial simpler model, addressing requirements that were not well supported
in the initial model. This document updates RFC 7950.</t>
</abstract>
</front> </front>
<seriesInfo name="RFC" value="8342"/> <seriesInfo name="RFC" value="9643"/>
<seriesInfo name="DOI" value="10.17487/RFC8342"/> <seriesInfo name="DOI" value="10.17487/RFC9643"/>
</reference> </reference>
<reference anchor="RFC8407" target="https://www.rfc-editor.org/info/rfc8
407" xml:base="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8407.xml"> <!-- [I-D.ietf-netconf-ssh-client-server] companion document RFC 9644-->
<reference anchor="RFC9644" target="https://www.rfc-editor.org/info/rfc96
44">
<front>
<title>YANG Groupings for SSH Clients and SSH Servers</title>
<author initials="K." surname="Watsen" fullname="Kent Watsen">
<organization>Watsen Networks</organization>
</author>
<date month="October" year="2024"/>
</front>
<seriesInfo name="RFC" value="9644"/>
<seriesInfo name="DOI" value="10.17487/RFC9644"/>
</reference>
<!-- [I-D.ietf-netconf-tls-client-server] companion document RFC 9645 -->
<reference anchor="RFC9645" target="https://www.rfc-editor.org/info/rfc9
645">
<front> <front>
<title>Guidelines for Authors and Reviewers of Documents Containing <title>YANG Groupings for TLS Clients and TLS Servers</title>
YANG Data Models</title> <author initials="K." surname="Watsen" fullname="Kent Watsen">
<author fullname="A. Bierman" initials="A." surname="Bierman"/> <organization>Watsen Networks</organization>
<date month="October" year="2018"/> </author>
<abstract> <date month="October" year="2024"/>
<t>This memo provides guidelines for authors and reviewers of spec
ifications containing YANG modules. Recommendations and procedures are defined,
which are intended to increase interoperability and usability of Network Configu
ration Protocol (NETCONF) and RESTCONF protocol implementations that utilize YAN
G modules. This document obsoletes RFC 6087.</t>
</abstract>
</front> </front>
<seriesInfo name="BCP" value="216"/> <seriesInfo name="RFC" value="9645"/>
<seriesInfo name="RFC" value="8407"/> <seriesInfo name="DOI" value="10.17487/RFC9645"/>
<seriesInfo name="DOI" value="10.17487/RFC8407"/>
</reference> </reference>
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D
.ietf-netconf-trust-anchors.xml"/> <!-- [I-D.ietf-netconf-http-client-server] IESG state: IESG Evaluation::Revised
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D I-D Needed as of 10/08/2024-->
.ietf-netconf-keystore.xml"/> <xi:include
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D href="https://bib.ietf.org/public/rfc/bibxml3/reference.I-D.ietf-netconf-http-cl
.ietf-netconf-tcp-client-server.xml"/> ient-server"/>
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D
.ietf-netconf-ssh-client-server.xml"/> <!-- [I-D.ietf-netconf-netconf-client-server] IESG state: Waiting for AD Go-Ahea
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D d::Revised I-D Needed as of 10/08/24 -->
.ietf-netconf-tls-client-server.xml"/> <xi:include
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D href="https://bib.ietf.org/public/rfc/bibxml3/reference.I-D.ietf-netconf-netconf
.ietf-netconf-http-client-server.xml"/> -client-server"/>
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D
.ietf-netconf-netconf-client-server.xml"/> <!-- [I-D.ietf-netconf-restconf-client-server] IESG state: Waiting for AD Go-Ahe
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D ad::Revised I-D Needed -->
.ietf-netconf-restconf-client-server.xml"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml3/reference.I-D.ietf-net
<xi:include href="https://datatracker.ietf.org/doc/bibxml3/reference.I-D conf-restconf-client-server"/>
.ietf-netmod-system-config.xml"/>
<!-- [I-D.ietf-netmod-system-config] IESG state: I-D Exists as of 10/08/24. Ente
red the long way to display the Ed role -->
<reference anchor="I-D.ietf-netmod-system-config" target="https://datatracker.ie
tf.org/doc/html/draft-ietf-netmod-system-config-09">
<front>
<title>System-defined Configuration</title>
<author fullname="Qiufang Ma" initials="Q." surname="Ma" role="editor">
<organization>Huawei</organization>
</author>
<author fullname="Qin Wu" initials="Q." surname="Wu">
<organization>Huawei</organization>
</author>
<author fullname="Chong Feng" initials="C." surname="Feng"/>
<date day="29" month="September" year="2024"/>
</front>
<seriesInfo name="Internet-Draft" value="draft-ietf-netmod-system-config-09"/>
</reference>
<reference anchor="Std-802.1AR-2018" target="https://standards.ieee.org/ standard/802_1AR-2018.html"> <reference anchor="Std-802.1AR-2018" target="https://standards.ieee.org/ standard/802_1AR-2018.html">
<front> <front>
<title>IEEE Standard for Local and metropolitan area networks - Secu re Device Identity</title> <title>IEEE Standard for Local and Metropolitan Area Networks - Secu re Device Identity</title>
<author> <author>
<organization>IEEE SA-Standards Board</organization> <organization>IEEE</organization>
</author> </author>
<date month="August" year="2018"/> <date month="August" year="2018"/>
</front> </front>
<seriesInfo name="IEEE Std" value="802.1AR-2018"/>
<seriesInfo name="DOI" value="10.1109/IEEESTD.2018.8423794"/>
</reference>
<reference anchor="W3C.REC-xml-20081126" target="https://www.w3.org/TR
/xml/" quoteTitle="true" derivedAnchor="W3C.REC-xml-20081126">
<front>
<title>Extensible Markup Language (XML) 1.0 (Fifth Edition)</title>
<author initials="T." surname="Bray"/>
<author initials="J." surname="Paoli"/>
<author initials="C. M." surname="Sperberg-McQueen"/>
<author initials="E." surname="Maler"/>
<author initials="F." surname="Yergeau"/>
<date month="November" year="2008"/>
</front>
<refcontent>W3C Recommendation REC-xml-20081126</refcontent>
</reference> </reference>
</references> </references>
</references> </references>
<section anchor="change-log">
<name>Change Log</name>
<section>
<name>00 to 01</name>
<ul spacing="normal">
<li>Replaced the 'certificate-chain' structures with PKCS#7 structures
.
(Issue #1)</li>
<li>Added 'private-key' as a configurable data node, and removed the
'generate-private-key' and 'load-private-key' actions. (Issue #2)
</li>
<li>Moved 'user-auth-credentials' to the ietf-ssh-client module.
(Issues #4 and #5)</li>
</ul>
</section>
<section>
<name>01 to 02</name>
<ul spacing="normal">
<li>Added back 'generate-private-key' action.</li>
<li>Removed 'RESTRICTED' enum from the 'private-key' leaf type.</li>
<li>Fixed up a few description statements.</li>
</ul>
</section>
<section>
<name>02 to 03</name>
<ul spacing="normal">
<li>Changed draft's title.</li>
<li>Added missing references.</li>
<li>Collapsed sections and levels.</li>
<li>Added RFC 8174 to Requirements Language Section.</li>
<li>Renamed 'trusted-certificates' to 'pinned-certificates'.</li>
<li>Changed 'public-key' from config false to config true.</li>
<li>Switched 'host-key' from OneAsymmetricKey to definition from RFC 4
253.</li>
</ul>
</section>
<section>
<name>03 to 04</name>
<ul spacing="normal">
<li>Added typedefs around leafrefs to common keystore paths</li>
<li>Now tree diagrams reference ietf-netmod-yang-tree-diagrams</li>
<li>Removed Design Considerations section</li>
<li>Moved key and certificate definitions from data tree to groupings<
/li>
</ul>
</section>
<section>
<name>04 to 05</name>
<ul spacing="normal">
<li>Removed trust anchors (now in their own draft)</li>
<li>Added back global keystore structure</li>
<li>Added groupings enabling keys to either be locally defined or a re
ference to the keystore.</li>
</ul>
</section>
<section>
<name>05 to 06</name>
<ul spacing="normal">
<li>Added feature "local-keys-supported"</li>
<li>Added nacm:default-deny-all and nacm:default-deny-write</li>
<li>Renamed generate-asymmetric-key to generate-hidden-key</li>
<li>Added an install-hidden-key action</li>
<li>Moved actions inside fo the "asymmetric-key" container</li>
<li>Moved some groupings to draft-ietf-netconf-crypto-types</li>
</ul>
</section>
<section>
<name>06 to 07</name>
<ul spacing="normal">
<li>Removed a "require-instance false"</li>
<li>Clarified some description statements</li>
<li>Improved the keystore-usage examples</li>
</ul>
</section>
<section>
<name>07 to 08</name>
<ul spacing="normal">
<li>Added "inline-definition" containers to avoid posibility of the
action/notification statements being under a "case" statement.</
li>
<li>Updated copyright date, boilerplate template, affiliation,
folding algorithm, and reformatted the YANG module.</li>
</ul>
</section>
<section>
<name>08 to 09</name>
<ul spacing="normal">
<li>Added a 'description' statement to the 'must' in the
/keystore/asymmetric-key node explaining that the descendant
values may exist in &lt;operational&gt; only, and that
implementation MUST assert that the values are either
configured or that they exist in &lt;operational&gt;.</li>
<li>Copied above 'must' statement (and description) into
the inline-or-keystore-asymmetric-key-grouping,
inline-or-keystore-asymmetric-key-with-certs-grouping,
and inline-or-keystore-end-entity-cert-with-key-grouping
statements.</li>
</ul>
</section>
<section>
<name>09 to 10</name>
<ul spacing="normal">
<li>Updated draft title to match new truststore draft title</li>
<li>Moved everything under a top-level 'grouping' to enable use in oth
er contexts.</li>
<li>Renamed feature from 'local-keys-supported' to 'inline-definitions
-supported' (same name used in truststore)</li>
<li>Removed the either-all-or-none 'must' expressions for the key's 3-
tuple values (since the values are now 'mandatory true' in crypto-types)</li>
<li>Example updated to reflect 'mandatory true' change in crypto-types
draft</li>
</ul>
</section>
<section>
<name>10 to 11</name>
<ul spacing="normal">
<li>Replaced typedef asymmetric-key-certificate-ref with grouping asym
metric-key-certificate-ref-grouping.</li>
<li>Added feature feature 'key-generation'.</li>
<li>Cloned groupings symmetric-key-grouping, asymmetric-key-pair-group
ing,
asymmetric-key-pair-with-cert-grouping, and asymmetric-key-pair
-with-certs-grouping
from crypto-keys, augmenting into each new case statements for
values that
have been encrypted by other keys in the keystore. Refactored
keystore model
to use these groupings.</li>
<li>Added new 'symmetric-keys' lists, as a sibling to the existing 'as
ymmetric-keys' list.</li>
<li>Added RPCs (not actions) 'generate-symmetric-key' and 'generate-as
ymmetric-key' to
*return* a (potentially encrypted) key.</li>
</ul>
</section>
<section>
<name>11 to 12</name>
<ul spacing="normal">
<li>Updated to reflect crypto-type's draft using enumerations over ide
ntities.</li>
<li>Added examples for the 'generate-symmetric-key' and 'generate-asym
metric-key' RPCs.</li>
<li>Updated the Introduction section.</li>
</ul>
</section>
<section>
<name>12 to 13</name>
<ul spacing="normal">
<li>Updated examples to incorporate new "key-format" identities.</li>
<li>Made the two "generate-*-key" RPCs be "action" statements instead.
</li>
</ul>
</section>
<section>
<name>13 to 14</name>
<ul spacing="normal">
<li>Updated YANG module and examples to incorporate the new iana-*-alg
orithm modules in the crypto-types draft.</li>
</ul>
</section>
<section>
<name>14 to 15</name>
<ul spacing="normal">
<li>Added new "Support for Built-in Keys" section.</li>
<li>Added 'must' expressions asserting that the 'key-format' leaf when
ever an encrypted key is specified.</li>
<li>Added inline-or-keystore-symmetric-key-grouping for PSK support.</
li>
</ul>
</section>
<section>
<name>15 to 16</name>
<ul spacing="normal">
<li>Moved the generate key actions to ietf-crypt-types as RPCs, which
are
augmented by ietf-keystore to support encrypted keys. Examples
updated
accordingly.</li>
<li>Added a SSH certificate-based key (RFC 6187) and a raw private key
to
the example instance document (partly so they could be reference
d by
examples in the SSH and TLS client/server drafts.</li>
</ul>
</section>
<section>
<name>16 to 17</name>
<ul spacing="normal">
<li>Removed augments to the "generate-symmetric-key" and "generate-asy
mmetric-key" groupings.</li>
<li>Removed "generate-symmetric-key" and "generate-asymmetric-key" exa
mples.</li>
<li>Removed the "algorithm" nodes from remaining examples.</li>
<li>Updated the "Support for Built-in Keys" section.</li>
<li>Added new section "Encrypting Keys in Configuration".</li>
<li>Added a "Note to Reviewers" note to first page.</li>
</ul>
</section>
<section>
<name>17 to 18</name>
<ul spacing="normal">
<li>Removed dangling/unnecessary ref to RFC 8342.</li>
<li>r/MUST/SHOULD/ wrt strength of keys being configured over transpor
ts.</li>
<li>Added an example for the "certificate-expiration" notification.</l
i>
<li>Clarified that OS MAY have a multiplicity of underlying keystores
and/or TPMs.</li>
<li>Clarified expected behavior for "built-in" keys in &lt;operational
&gt;</li>
<li>Clarified the "Migrating Configuration to Another Server" section.
</li>
<li>Expanded "Data Model Overview section(s) [remove "wall" of tree di
agrams].</li>
<li>Updated the Security Considerations section.</li>
</ul>
</section>
<section>
<name>18 to 19</name>
<ul spacing="normal">
<li>Updated examples to reflect new "cleartext-" prefix in the crypto-
types draft.</li>
</ul>
</section>
<section>
<name>19 to 20</name>
<ul spacing="normal">
<li>Addressed SecDir comments from Magnus Nystroem and Sandra Murphy.<
/li>
</ul>
</section>
<section>
<name>20 to 21</name>
<ul spacing="normal">
<li>Added a "Unconstrained Private Key Usage" Security Consideration t
o address
concern raised by SecDir.</li>
<li>(Editorial) Removed the output of "grouping" statements in the tre
e diagrams
for the "ietf-keystore" and "ex-keystore-usage" modules.</li>
<li>Addressed comments raised by YANG Doctor.</li>
</ul>
</section>
<section>
<name>21 to 22</name>
<ul spacing="normal">
<li>Added prefixes to 'path' statements per trust-anchors/issues/1</li
>
<li>Renamed feature "keystore-supported" to "central-keystore-supporte
d".</li>
<li>Associated with above, generally moved text to refer to a "central
" keystore.</li>
<li>Aligned modules with `pyang -f` formatting.</li>
<li>Fixed nits found by YANG Doctor reviews.</li>
</ul>
</section>
<section>
<name>22 to 23</name>
<ul spacing="normal">
<li>Updated 802.1AR ref to latest version</li>
<li>Replaced "base64encodedvalue==" with "BASE64VALUE=" in examples.</
li>
<li>Minor editorial nits</li>
</ul>
</section>
<section>
<name>23 to 24</name>
<ul spacing="normal">
<li>Added features "asymmetric-keys" and "symmetric-keys"</li>
<li>fixup the 'WG Web' and 'WG List' lines in YANG module(s)</li>
<li>fixup copyright (i.e., s/Simplified/Revised/) in YANG module(s)</l
i>
<li>Added Informative reference to ma-netmod-with-system</li>
</ul>
</section>
<section>
<name>24 to 25</name>
<ul spacing="normal">
<li>Added a "term" for "key" (IEEE liaison).</li>
<li>Clarified draft text to ensure proper use of the "key" term. (IEEE
liaison)</li>
<li>Added statement that built-in keys SHOULD NOT be cleartext. (IEEE
liaison)</li>
<li>Added "if-feature central-keystore-supported" to top-level "keysto
re" container.</li>
</ul>
</section>
<section>
<name>25 to 26</name>
<ul spacing="normal">
<li>Updated per Shepherd reviews impacting the suite of drafts.</li>
</ul>
</section>
<section>
<name>26 to 27</name>
<ul spacing="normal">
<li>Updated per Shepherd reviews impacting the suite of drafts.</li>
</ul>
</section>
<section>
<name>27 to 28</name>
<ul spacing="normal">
<li>Updated per Tom Petch review.</li>
<li>s/local/inline/ in feature names, grouping names, and node names.<
/li>
<li>Removed special handling text for built-in keys</li>
<li>Updated section on built-in keys to read almost the same as
the section in the trust-anchors draft.</li>
</ul>
</section>
<section>
<name>28 to 29</name>
<ul spacing="normal">
<li>Addresses AD review comments.</li>
<li>Added note to Editor to fix line foldings.</li>
<li>Renamed "keystore" to "central keystore" throughout.</li>
<li>Renamed "encrypted-by-choice-grouping" to "encrypted-by-grouping".
</li>
<li>Removed "public-key-format" and "public-key" nodes from examples.<
/li>
</ul>
</section>
<section>
<name>29 to 30</name>
<ul spacing="normal">
<li>Addresses Gen-ART review by Reese Enghardt.</li>
<li>Addresses review by Tom Petch.</li>
</ul>
</section>
<section>
<name>30 to 31</name>
<ul spacing="normal">
<li>Addresses 1st-round of IESG reviews.</li>
</ul>
</section>
<section>
<name>31 to 33</name>
<ul spacing="normal">
<li>Addresses issues found in OpsDir review of the ssh-client-server d
raft.</li>
<li>Renamed Security Considerations section s/Template for/Considerati
ons for/</li>
<li>s/defines/presents/ in a few places.</li>
<li>Add refs to where the 'operational' and 'system' datastores are de
fined.</li>
</ul>
</section>
<section>
<name>33 to 34</name>
<ul spacing="normal">
<li>Nothing changed. Only bumped for automation...</li>
</ul>
</section>
<section>
<name>34 to 35</name>
<ul spacing="normal">
<li>Address Roman Danyliw's comments.</li>
</ul>
</section>
</section>
<section numbered="false"> <section numbered="false">
<name>Acknowledgements</name> <name>Acknowledgements</name>
<t>The authors would like to thank the following for <t>The authors would like to thank the following for
lively discussions on list and in the halls (ordered lively discussions on list and in the halls (ordered
by first name): by first name):
Alan Luchuk, <contact fullname="Alan Luchuk"/>,
Andy Bierman, <contact fullname="Andy Bierman"/>,
Benoit Claise, <contact fullname="Balázs Kovács"/>,
Bert Wijnen, <contact fullname="Benoit Claise"/>,
Balázs Kovács, <contact fullname="Bert Wijnen"/>,
David Lamparter, <contact fullname="David Lamparter"/>,
Eric Voit, <contact fullname="Eric Voit"/>,
Éric Vyncke, <contact fullname="Éric Vyncke"/>,
Francesca Palombini, <contact fullname="Francesca Palombini"/>,
Ladislav Lhotka, <contact fullname="Jürgen Schönwälder"/>,
Liang Xia, <contact fullname="Ladislav Lhotka"/>,
Jürgen Schönwälder, <contact fullname="Liang Xia"/>,
Mahesh Jethanandani, <contact fullname="Magnus Nyström"/>,
Magnus Nyström, <contact fullname="Mahesh Jethanandani"/>,
Martin Björklund, <contact fullname="Martin Björklund"/>,
Mehmet Ersue, <contact fullname="Mehmet Ersue"/>,
Murray Kucherawy, <contact fullname="Murray Kucherawy"/>,
Paul Wouters, <contact fullname="Paul Wouters"/>,
Phil Shafer, <contact fullname="Phil Shafer"/>,
Qin Wu, <contact fullname="Qin Wu"/>,
Radek Krejci, <contact fullname=" Radek Krejci"/>,
Ramkumar Dhanapal, <contact fullname="Ramkumar Dhanapal"/>,
Reese Enghardt, <contact fullname="Reese Enghardt"/>,
Reshad Rahman, <contact fullname=" Reshad Rahman"/>,
Rob Wilton, <contact fullname="Rob Wilton"/>,
Roman Danyliw, <contact fullname="Roman Danyliw"/>,
Sandra Murphy, <contact fullname="Sandra Murphy"/>,
Sean Turner, <contact fullname=" Sean Turner"/>,
Tom Petch, <contact fullname="Tom Petch"/>,
Warren Kumari, <contact fullname="Warren Kumari"/>,
and Zaheduzzaman Sarker.</t> and <contact fullname="Zaheduzzaman Sarker"/>.</t>
</section> </section>
</back> </back>
</rfc> </rfc>
 End of changes. 186 change blocks. 
1013 lines changed or deleted 530 lines changed or added

This html diff was produced by rfcdiff 1.48.