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Use Verifiable Credential JWS signed using known JSON WEB Key. #102

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Use Verifiable Credential JWS signed using known JSON WEB Key. #102

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4 changes: 2 additions & 2 deletions test/vc-data-model-1.0/input/example-016-jwt-presentation-no-iss.jsonld
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Expand Up @@ -5,5 +5,5 @@
],
"id": "urn:uuid:3978344f-8596-4c3a-a978-8fcaba3903c5",
"type": ["VerifiablePresentation", "CredentialManagerPresentation"],
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImRpZDpleGFtcGxlOmFiZmUxM2Y3MTIxMjA0MzFjMjc2ZTEyZWNhYiNrZXlzLTEifQ.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.KLJo5GAyBND3LDTn9H7FQokEsUEi8jKwXhGvoN3JtRa51xrNDgXDb0cq1UTYB-rK4Ft9YVmR1NI_ZOF8oGc_7wAp8PHbF2HaWodQIoOBxxT-4WNqAxft7ET6lkH-4S6Ux3rSGAmczMohEEf8eCeN-jC8WekdPl6zKZQj0YPB1rx6X0-xlFBs7cl6Wt8rfBP_tZ9YgVWrQmUWypSioc0MUyiphmyEbLZagTyPlUyflGlEdqrZAv6eSe6RtxJy6M1-lD7a5HTzanYTWBPAUHDZGyGKXdJw-W_x0IWChBzI8t3kpG253fg6V3tPgHeKXE94fz_QpYfg--7kLsyBAfQGbg"]
}
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsImtpZCI6ImRpZDpleGFtcGxlOjB4YWIjdmVyaWtleS0xIiwidHlwIjoiSldUIn0.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.IC4Bqm8HyRG5nZYgG02KiGQpxSxQpkWgZ0gcmZmQYWD3wZWJnLzc_hSFDEAzW59SMhqBTEkWPDLnCai21KqCyyW2N6qVmNUFWjifdGYdx4i5ute8LOSw2Qr20tnrsY03qwJtzrnSkg7vVVtj996iShA1EnCwDp13l_RoTDh3ZBRy3VX5uTF32h6rbSEMBsxpkJSl7ZglQnUJcwOjRlGwUGpavcgLASZ0uYu5pc2RX0woFgez23R0gZkrDGlgbTlgacaCDtoAz4kqTTLYOMOAWWJG5DRGtvYGjVJwJy5iOi2Uwg53hDUMS2crnj5IPa1ABQthkMviFlWKsyIY9NWLVA"]
}
4 changes: 2 additions & 2 deletions test/vc-data-model-1.0/input/example-016-jwt-presentation-no-jti.jsonld
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],
"type": ["VerifiablePresentation", "CredentialManagerPresentation"],
"holder": "did:example:ebfeb1f712ebc6f1c276e12ec21",
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImRpZDpleGFtcGxlOmFiZmUxM2Y3MTIxMjA0MzFjMjc2ZTEyZWNhYiNrZXlzLTEifQ.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.KLJo5GAyBND3LDTn9H7FQokEsUEi8jKwXhGvoN3JtRa51xrNDgXDb0cq1UTYB-rK4Ft9YVmR1NI_ZOF8oGc_7wAp8PHbF2HaWodQIoOBxxT-4WNqAxft7ET6lkH-4S6Ux3rSGAmczMohEEf8eCeN-jC8WekdPl6zKZQj0YPB1rx6X0-xlFBs7cl6Wt8rfBP_tZ9YgVWrQmUWypSioc0MUyiphmyEbLZagTyPlUyflGlEdqrZAv6eSe6RtxJy6M1-lD7a5HTzanYTWBPAUHDZGyGKXdJw-W_x0IWChBzI8t3kpG253fg6V3tPgHeKXE94fz_QpYfg--7kLsyBAfQGbg"]
}
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsImtpZCI6ImRpZDpleGFtcGxlOjB4YWIjdmVyaWtleS0xIiwidHlwIjoiSldUIn0.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.IC4Bqm8HyRG5nZYgG02KiGQpxSxQpkWgZ0gcmZmQYWD3wZWJnLzc_hSFDEAzW59SMhqBTEkWPDLnCai21KqCyyW2N6qVmNUFWjifdGYdx4i5ute8LOSw2Qr20tnrsY03qwJtzrnSkg7vVVtj996iShA1EnCwDp13l_RoTDh3ZBRy3VX5uTF32h6rbSEMBsxpkJSl7ZglQnUJcwOjRlGwUGpavcgLASZ0uYu5pc2RX0woFgez23R0gZkrDGlgbTlgacaCDtoAz4kqTTLYOMOAWWJG5DRGtvYGjVJwJy5iOi2Uwg53hDUMS2crnj5IPa1ABQthkMviFlWKsyIY9NWLVA"]
}
4 changes: 2 additions & 2 deletions test/vc-data-model-1.0/input/example-016-jwt-presentation.jsonld
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"id": "urn:uuid:3978344f-8596-4c3a-a978-8fcaba3903c5",
"type": ["VerifiablePresentation", "CredentialManagerPresentation"],
"holder": "did:example:ebfeb1f712ebc6f1c276e12ec21",
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImRpZDpleGFtcGxlOmFiZmUxM2Y3MTIxMjA0MzFjMjc2ZTEyZWNhYiNrZXlzLTEifQ.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.KLJo5GAyBND3LDTn9H7FQokEsUEi8jKwXhGvoN3JtRa51xrNDgXDb0cq1UTYB-rK4Ft9YVmR1NI_ZOF8oGc_7wAp8PHbF2HaWodQIoOBxxT-4WNqAxft7ET6lkH-4S6Ux3rSGAmczMohEEf8eCeN-jC8WekdPl6zKZQj0YPB1rx6X0-xlFBs7cl6Wt8rfBP_tZ9YgVWrQmUWypSioc0MUyiphmyEbLZagTyPlUyflGlEdqrZAv6eSe6RtxJy6M1-lD7a5HTzanYTWBPAUHDZGyGKXdJw-W_x0IWChBzI8t3kpG253fg6V3tPgHeKXE94fz_QpYfg--7kLsyBAfQGbg"]
}
"verifiableCredential": ["eyJhbGciOiJSUzI1NiIsImtpZCI6ImRpZDpleGFtcGxlOjB4YWIjdmVyaWtleS0xIiwidHlwIjoiSldUIn0.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.IC4Bqm8HyRG5nZYgG02KiGQpxSxQpkWgZ0gcmZmQYWD3wZWJnLzc_hSFDEAzW59SMhqBTEkWPDLnCai21KqCyyW2N6qVmNUFWjifdGYdx4i5ute8LOSw2Qr20tnrsY03qwJtzrnSkg7vVVtj996iShA1EnCwDp13l_RoTDh3ZBRy3VX5uTF32h6rbSEMBsxpkJSl7ZglQnUJcwOjRlGwUGpavcgLASZ0uYu5pc2RX0woFgez23R0gZkrDGlgbTlgacaCDtoAz4kqTTLYOMOAWWJG5DRGtvYGjVJwJy5iOi2Uwg53hDUMS2crnj5IPa1ABQthkMviFlWKsyIY9NWLVA"]
}
2 changes: 1 addition & 1 deletion test/vc-data-model-1.0/input/example-016-jwt.jwt
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@@ -1 +1 @@
eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImRpZDpleGFtcGxlOmFiZmUxM2Y3MTIxMjA0MzFjMjc2ZTEyZWNhYiNrZXlzLTEifQ.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.kaeFJM08sN7MthR-SWU-E8qbFoyZu2b_h1VllkEgNkLAGT9KpQbaeMUEti7QesFW_Cvwh5VErK62jneaW-uzZS6GPW3HVk8O3uRxWD3qCJx0l5uWZeHpRBX6yMcr2XGKWyFn0OBjoiGHQ78mHU8tNEWDqbrIhCoGQKj87OETvlfUDIkNi4_pRfLrJGh5HBrh6JuA-8uM2_clWC2RELsT52sPnqvMjm7UeYZgQEyaQJL6c41BUwHaCGWjUDCDZNWOd5M04s_Pi4Rqo97-2nbQRh_fuQk7aHKxb-UItQ8Mnk_hUFWEicwtuCfDFqwkZyW_r9dOBwz7-cOheuyP6OiLvw
eyJhbGciOiJSUzI1NiIsImtpZCI6ImRpZDpleGFtcGxlOjB4YWIjdmVyaWtleS0xIiwidHlwIjoiSldUIn0.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.IC4Bqm8HyRG5nZYgG02KiGQpxSxQpkWgZ0gcmZmQYWD3wZWJnLzc_hSFDEAzW59SMhqBTEkWPDLnCai21KqCyyW2N6qVmNUFWjifdGYdx4i5ute8LOSw2Qr20tnrsY03qwJtzrnSkg7vVVtj996iShA1EnCwDp13l_RoTDh3ZBRy3VX5uTF32h6rbSEMBsxpkJSl7ZglQnUJcwOjRlGwUGpavcgLASZ0uYu5pc2RX0woFgez23R0gZkrDGlgbTlgacaCDtoAz4kqTTLYOMOAWWJG5DRGtvYGjVJwJy5iOi2Uwg53hDUMS2crnj5IPa1ABQthkMviFlWKsyIY9NWLVA
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Some JWT implementations don't like the trailing newline. Can that be removed from this file?

e.g.
See trailing newline (0xa) with hexdump:

$ hexdump -C test/vc-data-model-1.0/input/example-016-jwt.jwt | tail -2
00000430  59 39 4e 57 4c 56 41 0a                           |Y9NWLVA.|
00000438

Check file size:

$ wc -c test/vc-data-model-1.0/input/example-016-jwt.jwt
1080 test/vc-data-model-1.0/input/example-016-jwt.jwt

Truncate by one character:

$ truncate -s 1079 test/vc-data-model-1.0/input/example-016-jwt.jwt

See trailing newline is no longer present:

$ hexdump -C test/vc-data-model-1.0/input/example-016-jwt.jwt|tail -2
00000430  59 39 4e 57 4c 56 41                              |Y9NWLVA|
00000437

Other ways to do it: https://unix.stackexchange.com/questions/140727/how-can-i-delete-a-trailing-newline-in-bash

Now the JWT can be verified with this jose command (https://github.com/latchset/jose) (after saving the JWK to key.jwk):

$ jose jws ver -i test/vc-data-model-1.0/input/example-016-jwt.jwt -k key.jwk

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The VC issuer property is an empty string. Shouldn't it instead be omitted, or match the iss claim?

https://www.w3.org/TR/vc-data-model/#issuer:

The value of the issuer property MUST be either a URI or an object containing an id property.

https://www.w3.org/TR/vc-data-model/#jwt-encoding:

iss MUST represent the issuer property of a verifiable credential or the holder property of a verifiable presentation.

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@clehner clehner Aug 18, 2021 •
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Decoded JWT:

{
  "alg": "RS256",
  "kid": "did:example:0xab#verikey-1",
  "typ": "JWT"
}
{
  "exp": 1573029723,
  "iat": 1541493724,
  "iss": "did:example:abfe13f712120431c276e12ecab",
  "jti": "http://example.edu/credentials/3732",
  "nbf": 1541493724,
  "sub": "did:example:ebfeb1f712ebc6f1c276e12ec21",
  "vc": {
    "@context": [
      "https://www.w3.org/2018/credentials/v1",
      "https://www.w3.org/2018/credentials/examples/v1"
    ],
    "credentialSchema": [],
    "credentialSubject": {
      "alumniOf": "Example University",
      "id": "did:example:ebfeb1f712ebc6f1c276e12ec21"
    },
    "issuer": "",
    "type": [
      "VerifiableCredential",
      "AlumniCredential"
    ]
  }
}

Previous decoded JWT:

{
  "alg": "RS256",
  "typ": "JWT",
  "kid": "did:example:abfe13f712120431c276e12ecab#keys-1"
}
{
  "sub": "did:example:ebfeb1f712ebc6f1c276e12ec21",
  "jti": "http://example.edu/credentials/3732",
  "iss": "did:example:abfe13f712120431c276e12ecab",
  "nbf": 1541493724,
  "exp": 1573029723,
  "nonce": "660!6345FSer",
  "vc": {
    "@context": [
      "https://w3.org/2018/credentials/v1",
      "https://example.com/examples/v1"
    ],
    "type": [
      "VerifiableCredential",
      "UniversityDegreeCredential"
    ],
    "credentialSubject": {
      "degree": {
        "type": "BachelorDegree",
        "name": "Bachelor of Science in Mechanical Engineering"
      }
    }
  }
}

Diff, after rearranging some properties for consistency:

@@ -1,29 +1,29 @@
 {
   "alg": "RS256",
   "typ": "JWT",
-  "kid": "did:example:abfe13f712120431c276e12ecab#keys-1"
+  "kid": "did:example:0xab#verikey-1",
 }
 {
   "sub": "did:example:ebfeb1f712ebc6f1c276e12ec21",
   "jti": "http://example.edu/credentials/3732",
   "iss": "did:example:abfe13f712120431c276e12ecab",
   "nbf": 1541493724,
+  "iat": 1541493724,
   "exp": 1573029723,
-  "nonce": "660!6345FSer",
   "vc": {
     "@context": [
-      "https://w3.org/2018/credentials/v1",
-      "https://example.com/examples/v1"
+      "https://www.w3.org/2018/credentials/v1",
+      "https://www.w3.org/2018/credentials/examples/v1"
     ],
     "type": [
       "VerifiableCredential",
-      "UniversityDegreeCredential"
+      "AlumniCredential"
     ],
+    "issuer": "",
+    "credentialSchema": [],
     "credentialSubject": {
-      "degree": {
-        "type": "BachelorDegree",
-        "name": "Bachelor of Science in Mechanical Engineering"
-      }
+      "alumniOf": "Example University",
+      "id": "did:example:ebfeb1f712ebc6f1c276e12ec21"
     }
   }
 }

The Expiration time (exp claim) 1573029723 (2019-11-06T08:42:03Z) is in the past. This may cause verification to fail. How about set it to some date in the far future, or omit the claim/property entirely?

AlumniCredential is not in the example context currently but may be added soon: w3c/vc-data-model#783. UniversityDegreeCredential is in the context.

"credentialSchema": [] doesn't cause a problem for @spruceid's implementation, but I wonder if it is useful/necessary.

The new key id did:example:0xab#verikey-1 doesn't directly match the issuer did:example:abfe13f712120431c276e12ecab. But this is okay if we assume that did:example:abfe13f712120431c276e12ecab has did:example:0xab as a controller.