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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv='Content-Type' content='text/html;charset=utf-8'/>
<title>Securing Verifiable Credentials using JOSE and COSE</title>
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title: "SD-JWT-based Verifiable Credentials (SD-JWT VC)",
href: "https://datatracker.ietf.org/doc/html/draft-ietf-oauth-sd-jwt-vc",
authors: ["Oliver Terbu", "Daniel Fett", "Brian Campbell"],
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title: "The JSON Object Signing and Encryption (JOSE) Registries",
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title: "Guide to Protecting the Confidentiality of Personally Identifiable Information (PII)",
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<body>
<section id="abstract">
<p>
This specification defines how to secure credentials and presentations
conforming to the Verifiable Credential data model [[VC-DATA-MODEL-2.0]]
with JSON Object Signing and Encryption
(<a href="https://datatracker.ietf.org/wg/jose/about/">JOSE</a>),
Selective Disclosure for JWTs [[SD-JWT]],
and CBOR Object Signing and Encryption (COSE) [[RFC9052]].
This enables the Verifiable Credential data model [[VC-DATA-MODEL-2.0]]
to be implemented with standards for signing and encryption that are
widely adopted.
</p>
</section>
<section id="sotd">
<p>
The Working Group is actively seeking implementation feedback for this
specification. In order to exit the Candidate Recommendation phase, the
Working Group has set the requirement of at least two independent
implementations for each mandatory feature in the specification. For
details on the conformance testing process, see the test suite listed in
the <a href="https://w3c.github.io/vc-jose-cose-test-suite/">
implementation report</a>.
</p>
</section>
<section id="introduction">
<h2 id="section-introduction">Introduction</h2>
<p>
This specification defines how to secure media types expressing
Verifiable Credentials and Verifiable Presentations as described in
[[VC-DATA-MODEL-2.0]] using approaches defined by the JOSE, OAuth, and
COSE working groups at the IETF. This includes JSON Web Signature (JWS)
[[RFC7515]], Selective Disclosure for JWTs [[SD-JWT]],
and CBOR Object Signing and Encryption (COSE) [[RFC9052]].
It uses content types [[RFC6838]] to distinguish between the data types
of unsecured documents conforming to [[VC-DATA-MODEL-2.0]] and the data
types of secured documents conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
JSON Web Signature (JWS) [[RFC7515]] defines a standard means of
digitally signing documents, including JSON documents, using JSON-based
data structures. It provides a means to ensure the integrity,
authenticity, and non-repudiation of the information contained in the
document. Selective Disclosure for JWTs (SD-JWT) [[SD-JWT]] builds on
JWS by also providing a mechanism enabling selective disclosure of
document elements. These properties make JWS and SD-JWT especially
well-suited to securing documents conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
CBOR Object Signing and Encryption (COSE) [[RFC9052]] defines a standard
means of representing digitally signed data structures using
Concise Binary Object Representation (CBOR) [[RFC8949]]. Like JWS, COSE
provides a standardized way to secure the integrity, authenticity, and
confidentiality of information. It offers a flexible and extensible set
of cryptographic options, allowing for a wide range of algorithms
to be used for signing and encryption.
</p>
<p>
COSE supports two main operations: signing and encryption. For signing,
COSE allows the creation of digital signatures over CBOR data using
various algorithms such as RSA, ECDSA, and EdDSA. These signatures
provide assurance of data integrity and authenticity. COSE also supports
encryption, enabling the confidentiality of CBOR data by encrypting it
with symmetric or asymmetric encryption algorithms.
</p>
<section id="conformance">
<section>
<h2 id="conformance-classes">Conformance Classes</h2>
<p>
A <dfn>conforming JWS document</dfn> is one that conforms to all of
the "MUST" statements in Section <a href="#secure-with-jose"></a>.
</p>
<p>
A <dfn>conforming JWS issuer implementation</dfn> produces
[=conforming JWS documents=] and MUST secure them as described in
Section <a href="#secure-with-jose"></a>.
<p>
A <dfn>conforming JWS verifier implementation</dfn> verifies
[=conforming JWS documents=] as described in Section
<a href="#secure-with-jose"></a>.
</p>
<p>
A <dfn>conforming SD-JWT document</dfn> is one that conforms to all
of the "MUST" statements in Section <a href="#secure-with-sd-jwt"></a>.
</p>
<p>
A <dfn>conforming SD-JWT issuer implementation</dfn> produces
[=conforming SD-JWT documents=] and MUST secure them as described
in Section <a href="#secure-with-sd-jwt"></a>.
<p>
A <dfn>conforming SD-JWT verifier implementation</dfn> verifies
[=conforming SD-JWT documents=] as described in Section
<a href="#secure-with-sd-jwt"></a>.
</p>
<p>
A <dfn>conforming COSE document</dfn> is one that conforms to all
of the "MUST" statements in Section <a href="#secure-with-cose"></a>.
</p>
<p>
A <dfn>conforming COSE issuer implementation</dfn> produces
[=conforming COSE documents=] and MUST secure them as described in
Section <a href="#secure-with-cose"></a>.
</p>
<p>
A <dfn>conforming COSE verifier implementation</dfn> verifies
[=conforming COSE documents=] as described in Section
<a href="#secure-with-cose"></a>.
</p>
</section>
<section>
<h2 id="securing-verifiable-credentials">Securing Verifiable Credentials</h2>
<p>
The <a data-cite="VC-DATA-MODEL-2.0#securing-mechanism-specifications"></a>
describes the approach taken by this specification to secure JSON
and CBOR claims by <i>applying an <code>enveloping proof</code></i>.
</p>
<p>
This specification defines how to secure different data structures
using various <code>enveloping proof</code> mechanisms:
</p>
<dl>
<dt>JSON Web Token (JWT):</dt>
<dd>A JWT secures a JWT Claims Set, in its entirety. A JWT Claims Set
is a JSON object containing one or more claims about an entity
(typically the subject of the JWT). If any part of the
JWT Claims Set is to be revealed, all claims in that set must be
revealed; there is no option to reveal (or conceal) <i>some</i> of
the claims while concealing (or revealing) the others.
</dd>
<dt>Selective Disclosure JSON Web Token (SD-JWT):</dt>
<dd>
An SD-JWT secures a JWT Claims Set, similar to a JWT securing
a JWT Claims Set, but with the added capabilities of selectively
revealing or withholding parts of the JWT Claims Set.
A JWT Claims Set is one or more claims about an entity
(typically the subject of the SD-JWT).
</dd>
<dt>CBOR Object Signing and Encryption (COSE):</dt>
<dd>
COSE secures CBOR (Concise Binary Object Representation) data structures.
CBOR is a binary data format that is more compact than JSON and is
designed for constrained environments.
</dd>
</dl>
<p>In the context of Verifiable Credentials:</p>
<ul>
<li>
When using JWTs,
the Verifiable Credential or Presentation is encoded as a JWT Claims Set.
</li>
<li>
When using SD-JWTs,
the Verifiable Credential or Presentation is encoded as a JWT Claims Set with Selective Disclosure features.
</li>
<li>
When using COSE,
the Verifiable Credential or Presentation is encoded as a CBOR data structure.
</li>
</ul>
<p>
In all cases, the underlying data model of the Verifiable Credential
or Presentation remains consistent with the [[VC-DATA-MODEL-2.0]],
but the encoding and security mechanisms differ.
</p>
<p>
The normative statements in <a data-cite="VC-DATA-MODEL-2.0#securing-mechanisms">
Securing Mechanisms</a> apply to securing
<code>application/vc+jwt</code> and
<code>application/vp+jwt</code>,
<code>application/vc+sd-jwt</code> and
<code>application/vp+sd-jwt</code>,
<code>application/vc+cose</code> and
<code>application/vp+cose</code>.
</p>
<section>
<h2>JWT Format and Requirements</h2>
<p>
JSON Web Token implementers are advised to review
<a data-cite="RFC7519#section-8">Implementation Requirements</a>.
</p>
<p>
Issuers, Holders, and Verifiers of JWTs MUST understand the effect
of the JSON Web Token header parameter setting of
<code>"alg": "none"</code> when using JSON Web Tokens to secure
[[VC-DATA-MODEL-2.0]]. When content types from the
[[VC-DATA-MODEL-2.0]] are secured using JSON Web Tokens, the
header parameter setting of <code>"alg": "none"</code>
is used to communicate that a Verifiable Credential or
Verifiable Presentation encoded as a JWT Claims Set has no
integrity protection.
</p>
<p>
Issuers, Holders, and Verifiers MUST ignore all JWT Claims Sets
that have no integrity protection.
</p>
<p>
The JWT Claim Names <code>vc</code> and <code>vp</code>
MUST NOT be present in any JWT Claims Set that comprises a
[=verifiable credential=] or a [=verifiable presentation=].
</p>
</section>
<section>
<h2>SD-JWT Format and Requirements</h2>
<p>
This specification uses Selective Disclosure for JWTs (SD-JWT) as
defined in the IETF draft [[SD-JWT]]. Implementers SHOULD refer to
this draft for the full details of the SD-JWT format and
processing requirements.
</p>
<ul>
<li>An SD-JWT consists of three main parts: the
SD-JWT itself, optional disclosures, and an optional KB-JWT (Key
Binding JWT). These parts are separated by tilde (~) characters.
</li>
<li>If the KB-JWT is not present, the SD-JWT must end with a
tilde (~) character. This is crucial for correct parsing and
processing of the SD-JWT.
</li>
<li>Selective disclosure is achieved through the use of
disclosure objects. These are base64url-encoded JSON arrays
containing the digest of the disclosed claim, the claim name,
and the claim value.
</li>
<li>Each disclosable claim is combined with a salt value
before hashing to prevent dictionary attacks.
</li>
</ul>
</section>
</section>
</section>
</section>
<section>
<h3 id="terminology">Terminology</h3>
<p>
This section defines the terms used in this specification. A link to
these terms is included whenever they appear in this specification.
</p>
<dl class="termlist">
<dt><dfn>public key</dfn></dt>
<dd>
Cryptographic material that can be used to verify digital proofs
created with a corresponding <a>private key</a>.
</dd>
<dt><dfn>private key</dfn></dt>
<dd>
Cryptographic material that can be used to generate digital proofs.
</dd>
<dt><dfn data-lt="verifiable credentials">verifiable credential</dfn></dt>
<dd>
A standard data model and representation format for expressing
cryptographically-verifiable digital credentials, as defined by the W3C
Verifiable Credentials specification [[VC-DATA-MODEL-2.0]].
</dd>
<dt><dfn>controller document</dfn></dt>
<dd>
A document that contains public cryptographic material as defined in
the [[[CONTROLLER-DOCUMENT]]] specification.
</dd>
</dl>
</section>
<section>
<h2 id="securing-the-vc-data-model">Securing the VC Data Model</h2>
<p>
This section outlines how to secure documents conforming
to [[VC-DATA-MODEL-2.0]] using JOSE, SD-JWT, and COSE.
</p>
<p>
Documents conforming to [[VC-DATA-MODEL-2.0]],
and their associated media types, rely on
JSON-LD, which is an extensible format for describing
linked data; see
<a data-cite="JSON-LD11#relationship-to-rdf">JSON-LD Relationship to RDF</a>.
</p>
<p>
A benefit to this approach is that payloads can be made to conform
directly to [[VC-DATA-MODEL-2.0]] without any mappings or
transformation, while at the same time supporting registered
header parameters and claims that are understood in the context of JOSE,
SD-JWT, and COSE.
</p>
<p>
It is RECOMMENDED that media types be used to distinguish
<a data-cite="VC-DATA-MODEL-2.0#credentials">verifiable credentials</a>
and <a data-cite="VC-DATA-MODEL-2.0#presentations">verifiable presentations</a>
from other kinds of secured JSON or CBOR.
</p>
<p>
The most specific media type (or subtype) available SHOULD be used,
instead of more generic media types (or supertypes). For example, rather
than the general <code>application/sd-jwt</code>,
<code>application/vc+sd-jwt</code> SHOULD be used, unless there is a
more specific media type that would even better identify the secured
envelope format.
</p>
<p>
If implementations do not know which media type to use, media types
defined in this specification MUST be used.
</p>
<section id="secure-with-jose">
<h2 id="with-jose">With JOSE</h2>
<section>
<h2 id="securing-with-jose">Securing JSON-LD Verifiable Credentials
with JOSE</h2>
<p>
This section details how to use JOSE to secure
[=verifiable credentials=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming JWS issuer implementation=] MUST use [[RFC7515]] to
secure this media type. The unsecured [=verifiable credential=] is
the unencoded JWS payload.
</p>
<p>
The <code>typ</code> header parameter SHOULD be <code>vc+jwt</code>.
When present, the <code>cty</code> header parameter SHOULD be
<code>vc</code>.
The <code>cty</code> header parameter value can be used to differentiate
between secured content of different types when using <code>vc+jwt</code>.
The <code>content type</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vc</code> when one is available.
See <a data-cite="RFC7515#section-4.1">Registered Header Parameter Names</a>
for additional details regarding usage of <code>typ</code> and <code>cty</code>.
</p>
<p>
A [=conforming JWS verifier implementation=] MUST use [[RFC7515]] to
verify [=conforming JWS documents=] that use this media type.
</p>
<p>
To encrypt a secured [=verifiable credential=] when transmitting
over an insecure channel, implementers MAY use
JSON Web Encryption (JWE) [[RFC7516]] by nesting the secured
[=verifiable credential=] as the plaintext payload of a JWE, per the
description of Nested JWTs in [[RFC7519]].
</p>
<pre class="example nohighlight vc" data-vc-tabs="jose" title="A simple example of a verifiable credential secured with JOSE">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"id": "http://university.example/credentials/1872",
"type": [
"VerifiableCredential",
"ExampleAlumniCredential"
],
"issuer": "https://university.example/issuers/565049",
"validFrom": "2010-01-01T19:23:24Z",
"credentialSchema": {
"id": "https://example.org/examples/degree.json",
"type": "JsonSchema"
},
"credentialSubject": {
"id": "did:example:123",
"degree": {
"type": "BachelorDegree",
"name": "Bachelor of Science and Arts"
}
}
}
</pre>
<p>
See <a
data-cite="VC-DATA-MODEL-2.0#example-a-simple-example-of-the-contents-of-a-verifiable-credential"></a>
for more details regarding this example.
</p>
</section>
<section>
<h2 id="securing-vps-with-jose">Securing JSON-LD
Verifiable Presentations with JOSE</h2>
<p>
This section details how to use JOSE to secure
[=verifiable presentations=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming JWS issuer implementation=] MUST use [[RFC7515]] to
secure this media type. The unsecured [=verifiable presentation=] is
the unencoded JWS payload.
</p>
<p>
The <code>typ</code> header parameter SHOULD be <code>vp+jwt</code>.
When present, the <code>cty</code> header parameter SHOULD be
<code>vp</code>.
The <code>cty</code> header parameter value can be used to differentiate
between secured content of different types when using <code>vp+jwt</code>.
The <code>content type</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vc</code> when one is available.
See <a data-cite="RFC7515#section-4.1">Registered Header Parameter Names</a>
for additional details regarding usage of <code>typ</code> and <code>cty</code>.
</p>
<p>
A [=conforming JWS verifier implementation=] MUST use [[RFC7515]] to
verify [=conforming JWS documents=] that use this media type.
</p>
<p>
Verifiable Credentials secured in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiableCredential">Enveloped Verifiable Credential</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Verifiable Presentations in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiablePresentation">Enveloped Verifiable Presentation</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Credentials in [=verifiable presentations=] MUST be secured.
In this case, these [=credentials=] are secured using JWS.
<p>
<p>
To encrypt a secured [=verifiable presentation=] when transmitting
over an insecure channel, implementers MAY use
JSON Web Encryption (JWE) [[RFC7516]] by nesting the secured
[=verifiable presentation=] as the plaintext payload of a JWE,
per the description of Nested JWTs in [[RFC7519]].
</p>
<pre class="example nohighlight vc" data-vc-tabs="jose" title="A simple example of a verifiable presentation secured with JOSE with the EnvelopedVerifiableCredential type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "VerifiablePresentation",
"verifiableCredential": [{
"@context": ["https://www.w3.org/ns/credentials/v2"],
"type": ["EnvelopedVerifiableCredential"],
"id": "data:application/vc+jwt,eyJraWQiOiJFeEhrQk1XOWZtYmt2VjI2Nm1ScHVQMnNVWV9OX0VXSU4xbGFwVXpPOHJvIiwiYWxnIjoiRVMzODQifQ.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.d2k4O3FytQJf83kLh-HsXuPvh6yeOlhJELVo5TF71gu7elslQyOf2ZItAXrtbXF4Kz9WivNdztOayz4VUQ0Mwa8yCDZkP9B2pH-9S_tcAFxeoeJ6Z4XnFuL_DOfkR1fP"
}]
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#enveloped-verifiable-credentials"></a> for more
details regarding this example.
</p>
<pre class="example nohighlight vc" data-vc-tabs="jose" title="A simple example of a verifiable presentation secured with JOSE with the EnvelopedVerifiablePresentation type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "EnvelopedVerifiablePresentation",
"id": "data:application/vp+jwt,eyJraWQiOiJFeEhrQk1XOWZtYmt2VjI2Nm1ScHVQMnNVWV9OX0VXSU4xbGFwVXpPOHJvIiwiYWxnIjoiRVMzODQifQ.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.d2k4O3FytQJf83kLh-HsXuPvh6yeOlhJELVo5TF71gu7elslQyOf2ZItAXrtbXF4Kz9WivNdztOayz4VUQ0Mwa8yCDZkP9B2pH-9S_tcAFxeoeJ6Z4XnFuL_DOfkR1fP"
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#enveloped-verifiable-presentations"></a>
for more details regarding this example.
</p>
<p>
Implementations MUST support the JWS compact serialization.
Use of the JWS JSON serialization is NOT RECOMMENDED.
</p>
</section>
<section class="appendix informative">
<h2 id="jose-header-parameters-jwt-claims">JOSE Header Parameters and
JWT Claims</h2>
<p>
When present in the <a data-cite="RFC7515#section-4">JOSE Header</a>
or the
<a data-cite="RFC7519#section-4">JWT Claims Set</a>, members
registered in the IANA
<a href="https://www.iana.org/assignments/jwt/jwt.xhtml">JSON Web Token Claims</a>
registry or the IANA
<a href="https://www.iana.org/assignments/jose/jose.xhtml">JSON Web Signature and Encryption Header Parameters</a>
registry are to be interpreted as defined by the specifications
referenced in the registries.
</p>
<p>
The normative statements in
<a data-cite="RFC7515#section-4.1">Registered Header Parameter Names</a>,
<a data-cite="RFC7519#section-5">JOSE Header</a>, and
<a data-cite="RFC7519#section-5.3">Replicating Claims as Header Parameters</a>
apply to securing [=credentials=] and [=presentations=].
</p>
<p>
The unencoded JOSE Header is JSON (`application/json`), not JSON-LD
(`application/ld+json`).
</p>
<p>
It is RECOMMENDED to use the IANA
<a href="https://www.iana.org/assignments/jwt/jwt.xhtml">JSON Web Token Claims</a>
registry and the IANA
<a href="https://www.iana.org/assignments/jose/jose.xhtml">JSON Web Signature and Encryption Header Parameters</a>
registry to identify any claims and header parameters that might be
confused with members defined by [[VC-DATA-MODEL-2.0]].
These include but are not limited to: <code>iss</code>,
<code>kid</code>, <code>alg</code>, <code>iat</code>,
<code>exp</code>, and <code>cnf</code>.
</p>
<p>
When the <code>iat</code> (Issued At) and/or
<code>exp</code> (Expiration Time) JWT claims are present, they
represent the issuance and expiration time of the signature,
respectively.
Note that these are different from the <code>validFrom</code> and
<code>validUntil</code> properties defined in
<a data-cite="VC-DATA-MODEL-2.0#validity-period">Validity Period</a>,
which represent the validity of the data that is being secured.
Use of the <code>nbf</code> (Not Before) claim is NOT RECOMMENDED,
as it makes little sense to attempt to assign a future date to
a signature.
</p>
<p>
The claims and security provided by this specification are
independent of the data secured and semantics provided by the
[[VC-DATA-MODEL-2.0]].
This means that while the security features
of this specification ensure data integrity and authenticity,
they do not dictate the interpretation of claim data.
</p>
<p>
Implementers SHOULD avoid setting JWT claims to values that conflict
with the values of [=verifiable credential=] properties when a
claim and property pair refer to the same conceptual entity,
especially with pairs such as `iss` and `issuer`, `jti` and `id`,
and `sub` and `credentialSubject.id`.
For example, JWK claim `iss` SHOULD NOT be set to a value which
conflicts with the value of [=verifiable credential=] property
`issuer`.
</p>
<p>
The JWT Claim Names <code>vc</code> and <code>vp</code> MUST NOT be present.
</p>
<p>
Additional members may be present as header parameters and claims.
If they are not understood, they MUST be ignored.
</p>
</section>
</section>
<section id="secure-with-sd-jwt">
<h2 id="with-sd-jwt">With SD-JWT</h2>
<p class="issue" title="(AT RISK) Feature depends on completion of an IETF specification currently in Working Group Last Call">
The normative statements in this section depend on the IETF OAuth working group
draft [[SD-JWT]]. Features related to [[SD-JWT]] are at risk and will be removed
from the specification if the IETF standardization process occurs after this
specification's timeline for reaching a Proposed Recommendation, and if at least
two independent, interoperable implementations are not demonstrated.
</p>
<section>
<h2 id="securing-with-sd-jwt">Securing JSON-LD Verifiable Credentials with SD-JWT</h2>
<p>
This section details how to use JOSE to secure
[=verifiable credentials=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming SD-JWT issuer implementation=] MUST use [[SD-JWT]]
to secure this media type.
The unsecured [=verifiable credential=] is the input JWT Claims Set.
The Issuer then converts the input JWT Claims Set (i.e., the
unsecured [=verifiable credential=]) into an [[SD-JWT]] payload
according to
<a data-cite="SD-JWT#section-6.1">SD-JWT issuance instructions</a>.
</p>
<p>
The <code>typ</code> header parameter SHOULD be <code>vc+sd-jwt</code>.
When present, the <code>cty</code> header parameter SHOULD be <code>vc</code>.
The <code>cty</code> header parameter value can be used to differentiate
between secured content of different types when using <code>vc+sd-jwt</code>.
The <code>content type</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vc</code> when one is available.
See <a data-cite="RFC7515#section-4.1">Registered Header Parameter Names</a>
for additional details regarding usage of <code>typ</code> and <code>cty</code>.
</p>
<p>
A [=conforming SD-JWT verifier implementation=] MUST use [[SD-JWT]]
to verify [=conforming JWS documents=] that use this media type.
</p>
<p>
When securing [=verifiable credentials=] with [[SD-JWT]],
implementers SHOULD ensure that properties necessary for the
validation and verification of a credential are NOT selectively
disclosable (i.e., such properties SHOULD be disclosed).
These properties can include but are not limited to
<a data-cite="VC-DATA-MODEL-2.0#contexts"><code>@context</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#types"><code>type</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#status"><code>credentialStatus</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#data-schemas"><code>credentialSchema</code></a>,
and <a data-cite="VC-DATA-MODEL-2.0#integrity-of-related-resources"><code>relatedResource</code></a>.
</p>
<p>
To encrypt a secured [=verifiable credential=] when transmitting
over an insecure channel, implementers MAY use
JSON Web Encryption (JWE) [[RFC7516]] by nesting the secured
[=verifiable credential=] as the plaintext payload of a JWE,
per the instructions in Section 11.2 of [[SD-JWT]].
</p>
<pre class="example nohighlight vc" data-vc-tabs="sd-jwt" title="A simple example of a verifiable credential secured with SD-JWT">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"id": "http://university.example/credentials/1872",
"type": [
"VerifiableCredential",
"ExampleAlumniCredential"
],
"issuer": "https://university.example/issuers/565049",
"validFrom": "2010-01-01T19:23:24Z",
"credentialSchema": {
"id": "https://example.org/examples/degree.json",
"type": "JsonSchema"
},
"credentialSubject": {
"id": "did:example:123",
"degree": {
"type": "BachelorDegree",
"name": "Bachelor of Science and Arts"
}
}
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#example-a-simple-example-of-the-contents-of-a-verifiable-credential"></a>
for more details regarding this example.
</p>
</section>
<section>
<h2 id="securing-vps-sd-jwt">Securing JSON-LD Verifiable Presentations with SD-JWT</h2>
<p>
This section details how to use [[SD-JWT]] to secure
[=verifiable presentations=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming SD-JWT issuer implementation=] MUST use [[SD-JWT]] to secure this media type.
The unsecured [=verifiable presentation=] is the unencoded [[SD-JWT]] payload.
</p>
<p>
The <code>typ</code> header parameter SHOULD be <code>vp+sd-jwt</code>.
When present, the <code>cty</code> header parameter SHOULD be <code>vp</code>.
The <code>cty</code> header parameter value can be used to differentiate
between secured content of different types when using <code>vp+sd-jwt</code>.
The <code>content type</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vc</code> when one is available.
See <a data-cite="RFC7515#section-4.1">Registered Header Parameter Names</a>
for additional details regarding usage of <code>typ</code> and <code>cty</code>.
</p>
<p>
A [=conforming SD-JWT verifier implementation=] MUST use [[SD-JWT]]
to verify [=conforming JWS documents=] that use this media type.
</p>
<p>
Verifiable Credentials secured in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiableCredential">Enveloped Verifiable Credential</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Verifiable Presentations in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiablePresentation">Enveloped Verifiable Presentation</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Credentials in [=verifiable presentations=] MUST be secured.
These [=credentials=] are secured using SD-JWT in this case.
<p>
<p>
When securing [=verifiable presentations=] with [[SD-JWT]]
implementers SHOULD ensure that properties necessary for the
validation and verification of a credential are NOT selectively
disclosable (i.e., such properties SHOULD be disclosed).
These properties can include but are not limited to
<a data-cite="VC-DATA-MODEL-2.0#contexts"><code>@context</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#types"><code>type</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#status"><code>credentialStatus</code></a>,
<a data-cite="VC-DATA-MODEL-2.0#data-schemas"><code>credentialSchema</code></a>,
and <a data-cite="VC-DATA-MODEL-2.0#integrity-of-related-resources"><code>relatedResource</code></a>.
</p>
<p>
To encrypt a secured [=verifiable presentation=] when transmitting
over an insecure channel, implementers MAY use
JSON Web Encryption (JWE) [[RFC7516]] by nesting the secured
[=verifiable presentation=] as the plaintext payload of a JWE,
per the instructions in Section 11.2 of [[SD-JWT]].
</p>
<pre class="example nohighlight vc" data-vc-tabs="sd-jwt" title="A simple example of a verifiable presentation secured with SD-JWT using the EnvelopedVerifiableCredential type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "VerifiablePresentation",
"verifiableCredential": [{
"@context": "https://www.w3.org/ns/credentials/v2",
"type": "EnvelopedVerifiableCredential",
"id": "data:application/vc+sd-jwt,eyJraWQiOiJFeEhrQk1XOWZtYmt2VjI2Nm1ScHVQMnNVWV9OX0VXSU4xbGFwVXpPOHJvIiwiYWxnIjoiRVMyNTYifQ.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.Kc083RKbBxc3Vr5qR3iEEPp3dKxTa6sPaWNsqtkIw8TvMRf9EZL2ajtgkWSBYzyzOzawOrCXryyp4rMTyI9vfA ~WyJiQ1RTaU9HNUo1VXhPY1QwUlNfd01nIiwgImlkIiwgImh0dHA6Ly91bml2ZXJzaXR5LmV4YW1wbGUvY3JlZGVudGlhbHMvMTg3MiJd~WyJTclNWMS01SjR6cWhOU3N3STIwaHdRIiwgInR5cGUiLCBbIlZlcmlmaWFibGVDcmVkZW50aWFsIiwgIkV4YW1wbGVBbHVtbmlDcmVkZW50aWFsIl1d~WyJKX294dDhtUGUtaDl4MkQzc29uT1N3IiwgImlkIiwgImh0dHBzOi8vZXhhbXBsZS5vcmcvZXhhbXBsZXMvZGVncmVlLmpzb24iXQ~WyJDMlpWektmZ185RUh1ajB2S1ExdWJnIiwgInR5cGUiLCAiSnNvblNjaGVtYSJd~WyJ6Szd5QlFPbFhfX2Q0X0VoYUc0Y0pRIiwgImlkIiwgImRpZDpleGFtcGxlOjEyMyJd~WyJ6b1pzRzMzeXBMeVRGMm9aS3ZmMVFnIiwgInR5cGUiLCAiQmFjaGVsb3JEZWdyZWUiXQ~"
}]
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#enveloped-verifiable-credentials"></a>
for more details regarding this example.
</p>
<pre class="example nohighlight vc" data-vc-tabs="sd-jwt" title="A simple example of a verifiable presentation secured with SD-JWT using the EnvelopedVerifiablePresentation type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "EnvelopedVerifiablePresentation",
"id": "data:application/vp+sd-jwt,eyJhbGciOiJFUzM4NCIsImtpZCI6IlVRTV9fblE0UzZCTzhuUTRuT05YeHB4aHRob3lOeGI1M0xZZ1l6LTJBQnMiLCJ0eXAiOiJ2cCtsZCtqc29uK3NkLWp3dCIsImN0eSI6InZwK2xkK2pzb24ifQ.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.kYD63YtBNYnLUTw6Szf1vs_Ug3UBXhPwCyqpNmPnPDa3rXZQhQLdB1BgaoO8zgQ-c3B41fxaXMnLHYV9-B20uboSpJP0B-2Vre917eQt1cSDswDGA_Ytvn4BSqYVBB2J~WyJFMkFsRzhsY2p0QVFrcllIbjlIbnVRIiwgInR5cGUiLCAiVmVyaWZpYWJsZVByZXNlbnRhdGlvbiJd~WyI5NldYMDRneno4cVZzOVZLU2wwYTVnIiwgImlkIiwgImh0dHA6Ly91bml2ZXJzaXR5LmV4YW1wbGUvY3JlZGVudGlhbHMvMTg3MiJd~WyJaekU2VFVaamtHMW1DWXBKMEhnc0l3IiwgInR5cGUiLCBbIlZlcmlmaWFibGVDcmVkZW50aWFsIiwgIkV4YW1wbGVBbHVtbmlDcmVkZW50aWFsIl1d~WyItQ3NsS25GZGFYb2JiQWsyU0JBVGR3IiwgImlkIiwgImRpZDpleGFtcGxlOmViZmViMWY3MTJlYmM2ZjFjMjc2ZTEyZWMyMSJd~WyJuRm1OWl9IczB3WWNoOFdkeTdnQUNRIiwgImlkIiwgImRpZDpleGFtcGxlOmMyNzZlMTJlYzIxZWJmZWIxZjcxMmViYzZmMSJd~"
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#enveloped-verifiable-presentations"></a>
for more details regarding this example.
</p>
<p>
Implementations MUST support the compact serialization
(<code>application/sd-jwt</code>) and MAY support the JSON
serialization (<code>application/sd-jwt+json</code>).
If the JSON serialization is used, it is RECOMMENDED that a profile
be defined to ensure any additional JSON members are understood consistently.
</p>
</section>
</section>
<section id="secure-with-cose">
<h2 id="securing-with-cose">With COSE</h2>
<p>
COSE [[RFC9052]] is a common approach to encoding and securing
information using CBOR [[RFC8949]].
Verifiable credentials MAY be secured using COSE [[RFC9052]] and
SHOULD be identified through use of content types as outlined in this section.
</p>
<section>
<h2 id="securing-vcs-with-cose">Securing JSON-LD
Verifiable Credentials with COSE</h2>
<p>
This section details how to use COSE to secure
[=verifiable credentials=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming COSE issuer implementation=] MUST use COSE_Sign1 as
specified in [[RFC9052]] to secure this media type.
The unsecured [=verifiable credential=] is the unencoded COSE_Sign1 payload.
</p>
<p>
The <code>typ (16)</code> header parameter, as described in
<a data-cite="RFC9596#section-2">COSE "typ" (type) Header Parameter</a>,
SHOULD be <code>application/vc+cose</code>.
The <code>content type (3)</code> header parameter SHOULD be <code>application/vc</code>.
The <code>content type (3)</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vc</code> when one is available.
See <a data-cite="RFC9052#section-3.1">Common COSE Header Parameters</a>
for additional details.
</p>
<p>
A [=conforming COSE verifier implementation=] MUST use COSE_Sign1 as
specified in [[RFC9052]] to verify [=conforming COSE documents=]
that use this media type.
</p>
<p>
When including [=verifiable credentials=] secured with COSE in
[=verifiable presentations=] as
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiableCredential">Enveloped Verifiable Credentials</a>,
the credentials MUST be encoded using base64 as specified in [[RFC2397]].
</p>
<p>
To encrypt a secured [=verifiable credential=] when transmitting
over an insecure channel, implementers MAY use COSE encryption,
as defined in Section 5 of [[RFC9052]], by nesting the secured
[=verifiable credential=] as the plaintext payload of an encrypted
COSE object.
</p>
<pre class="example nohighlight vc" data-vc-tabs="cose" title="A simple example of a verifiable credential secured with COSE">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"id": "http://university.example/credentials/1872",
"type": [
"VerifiableCredential",
"ExampleAlumniCredential"
],
"issuer": "https://university.example/issuers/565049",
"validFrom": "2010-01-01T19:23:24Z",
"credentialSchema": {
"id": "https://example.org/examples/degree.json",
"type": "JsonSchema"
},
"credentialSubject": {
"id": "did:example:123",
"degree": {
"type": "BachelorDegree",
"name": "Bachelor of Science and Arts"
}
}
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#example-a-simple-example-of-the-contents-of-a-verifiable-credential"></a>
for more details regarding this example.
</p>
</section>
<section>
<h2 id="securing-vps-with-cose">Securing JSON-LD Verifiable Presentations with COSE</h2>
<p>
This section details how to use COSE to secure
[=verifiable presentations=] conforming to [[VC-DATA-MODEL-2.0]].
</p>
<p>
A [=conforming COSE issuer implementation=] MUST use COSE_Sign1 as
specified in [[RFC9052]] to secure this media type.
The unsecured [=verifiable presentation=] is the unencoded COSE_Sign1 payload.
</p>
<p>
The <code>typ (16)</code> header parameter, as described in
<a data-cite="RFC9596#section-2">COSE "typ" (type) Header Parameter</a>,
SHOULD be <code>application/vp+cose</code>.
The <code>content type (3)</code> header parameter SHOULD be <code>application/vp</code>.
The <code>content type (3)</code> header parameter is optional, and can be used
to express a more specific media type than <code>application/vp</code> when one is available.
See <a data-cite="RFC9052#section-3.1">Common COSE Header Parameters</a>
for additional details.
</p>
<p>
A [=conforming COSE verifier implementation=] MUST use COSE_Sign1 as
specified in [[RFC9052]] to verify [=conforming COSE documents=]
that use this media type.
</p>
<p>
Verifiable Credentials secured in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiableCredential">Enveloped Verifiable Credential</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Verifiable Presentations in
<a data-cite="VC-DATA-MODEL-2.0/#verifiable-presentations">verifiable presentations</a>
MUST use the
<a data-cite="VC-DATA-MODEL-2.0/#defn-EnvelopedVerifiablePresentation">Enveloped Verifiable Presentation</a>
type defined by the [[VC-DATA-MODEL-2.0]].
</p>
<p>
Credentials in [=verifiable presentations=] MUST be secured.
These [=credentials=] are secured using COSE in this case.
<p>
<p>
To encrypt a secured [=verifiable presentation=] when transmitting
over an insecure channel, implementers MAY use COSE encryption,
as defined in Section 5 of [[RFC9052]], by nesting the secured
[=verifiable presentation=] as the plaintext payload of an encrypted
COSE object.
</p>
<pre class="example nohighlight vc" data-vc-tabs="cose" title="A simple example of a verifiable presentation secured withCOSE using the EnvelopedVerifiableCredential type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "VerifiablePresentation",
"verifiableCredential": [{
"@context": "https://www.w3.org/ns/credentials/v2",
"type": "EnvelopedVerifiableCredential",
"id": "data:application/vc+sd-jwt,eyJraWQiOiJFeEhrQk1XOWZtYmt2VjI2Nm1ScHVQMnNVWV9OX0VXSU4xbGFwVXpPOHJvIiwiYWxnIjoiRVMyNTYifQ.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.gw3paxbkLjpi8CTsyRpXKbC7tpVa0q2sWKSD-_dcbuZ1LpZV3oQ8Ifzcm2bE8RY3fmJgbuyA9gbPL3sQBaTzkg ~WyJSeUQxVlB4VHBvbmtPeXZpczkta293IiwgImlkIiwgImh0dHA6Ly91bml2ZXJzaXR5LmV4YW1wbGUvY3JlZGVudGlhbHMvMTg3MiJd~WyJfVjd1eTd3ay1RM3VZd2ZpZ0NvWUVBIiwgInR5cGUiLCBbIlZlcmlmaWFibGVDcmVkZW50aWFsIiwgIkV4YW1wbGVBbHVtbmlDcmVkZW50aWFsIl1d~WyJhazdqMTlnYVMtRDJLX2hzY3RVZGNRIiwgImlkIiwgImh0dHBzOi8vZXhhbXBsZS5vcmcvZXhhbXBsZXMvZGVncmVlLmpzb24iXQ~WyJUTjBXaXVZRkhXWkV2ZDZIQUJHQS1nIiwgInR5cGUiLCAiSnNvblNjaGVtYSJd~WyJVMnBzMkxYVERVbVh3MDcxRVBmRUpnIiwgImlkIiwgImRpZDpleGFtcGxlOjEyMyJd~WyJsQ042eTNEaTNDUk9VX3JuXzRENWRnIiwgInR5cGUiLCAiQmFjaGVsb3JEZWdyZWUiXQ~"
}]
}
</pre>
<p>
See <a data-cite="VC-DATA-MODEL-2.0#enveloped-verifiable-credentials"></a> for more
details regarding this example.
</p>
<pre class="example nohighlight vc" data-vc-tabs="cose" title="A simple example of a verifiable presentation secured with COSE using the EnvelopedVerifiablePresentation type">
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://www.w3.org/ns/credentials/examples/v2"
],
"type": "EnvelopedVerifiablePresentation",
"id": "data:application/vp+sd-jwt,eyJhbGciOiJFUzM4NCIsImtpZCI6IlVRTV9fblE0UzZCTzhuUTRuT05YeHB4aHRob3lOeGI1M0xZZ1l6LTJBQnMiLCJ0eXAiOiJ2cCtsZCtqc29uK3NkLWp3dCIsImN0eSI6InZwK2xkK2pzb24ifQ.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.kYD63YtBNYnLUTw6Szf1vs_Ug3UBXhPwCyqpNmPnPDa3rXZQhQLdB1BgaoO8zgQ-c3B41fxaXMnLHYV9-B20uboSpJP0B-2Vre917eQt1cSDswDGA_Ytvn4BSqYVBB2J~WyJFMkFsRzhsY2p0QVFrcllIbjlIbnVRIiwgInR5cGUiLCAiVmVyaWZpYWJsZVByZXNlbnRhdGlvbiJd~WyI5NldYMDRneno4cVZzOVZLU2wwYTVnIiwgImlkIiwgImh0dHA6Ly91bml2ZXJzaXR5LmV4YW1wbGUvY3JlZGVudGlhbHMvMTg3MiJd~WyJaekU2VFVaamtHMW1DWXBKMEhnc0l3IiwgInR5cGUiLCBbIlZlcmlmaWFibGVDcmVkZW50aWFsIiwgIkV4YW1wbGVBbHVtbmlDcmVkZW50aWFsIl1d~WyItQ3NsS25GZGFYb2JiQWsyU0JBVGR3IiwgImlkIiwgImRpZDpleGFtcGxlOmViZmViMWY3MTJlYmM2ZjFjMjc2ZTEyZWMyMSJd~WyJuRm1OWl9IczB3WWNoOFdkeTdnQUNRIiwgImlkIiwgImRpZDpleGFtcGxlOmMyNzZlMTJlYzIxZWJmZWIxZjcxMmViYzZmMSJd~"
}
</pre>