What does your request credential contain?

[vongohren]

What we need to work out here are commonalities and where do we need to adjust according to the spec of JFF. Meaning that we find a shared JSON structure inside the attachement or where do we put the layer

We also have to understand what does the attachement here offer of functionality

[vongohren]

{
  "id": "632d380ab4ee1e0025d45e92",
  "to": [
    "did:key:z6MkkgfrEB9gSvpJui6yLmqHhcuuLjto9QXKCSa4WtHai4KR"
  ],
  "typ": "application/didcomm-plain+json",
  "type": "https://didcomm.org/issue-credential/2.0/request-credential",
  "from": "did:key:z6Mknr8VZzAwecsS2Bugncp47dbHuSzhjGz4khcvm5KCSUCR",
  "thid": "70142c08-3780-4cdc-a92c-925523c3912b",
  "attachments": [],
}

[brianorwhatever]

{
   "type":"https://didcomm.org/issue-credential/3.0/request-credential",
   "id":"d00300b6c6db47e845e9f75c14fa2696c519245e4f5bd0ae30d3bfd6f691c098",
   "thid":"d00100bdf7f4b473232b49bc2a11dbda0ff10d418ba571205b252aa14dd294e1",
   "from":"did:peer:2.Ez6LSpSrLxbAhg2SHwKk7kwpsH7DM7QjFS5iK6qP87eViohud.Vz6MkqRYqQiSgvZQdnBytw86Qbs2ZWUkGv22od935YF4s8M7V.SeyJ0IjoiZG0iLCJzIjoiaHR0cHM6Ly9leGFtcGxlLmNvbS9lbmRwb2ludDEiLCJyIjpbImRpZDpleGFtcGxlOnNvbWVtZWRpYXRvciNzb21la2V5MSJdLCJhIjpbImRpZGNvbW0vdjIiLCJkaWRjb21tL2FpcDI7ZW52PXJmYzU4NyJdfQ",
   "to":[
      "did:web:aviary.id"
   ],
   "body":{
      
   },
   "attachments":[
      {
         "id":"d000003c48693771cd22c57096b09557002c41c6ab4ba0704bdd5781197656a4",
         "media_type":"application/json",
         "format":"dif/credential-manifest/[email protected]",
         "data":{
            "json":{
               "@context":[
                  "https://www.w3.org/2018/credentials/v1",
                  "https://identity.foundation/credential-manifest/application/v1"
               ],
               "type":[
                  "VerifiablePresentation",
                  "CredentialApplication"
               ],
               "credential_application":{
                  "id":"c00600022dca14affa8ab4a2e66765100f31a990e159022e7a498542c605c3da",
                  "manifest_id":"c001006f847f39073113b0ed862ff88c3c49669b4bbf5a30fcbec9f62d35cf98",
                  "format":{
                     "ldp_vc":{
                        "proof_type":[
                           "JsonWebSignature2020",
                           "Ed25519Signature2018"
                        ]
                     }
                  }
               },
               "presentation_submission":{
                  "id":"c00300d10d25d00b9c7cf985637b88e4da3e2af2d644c74ced677784c30454c6",
                  "definition_id":"c00400f85e0aae79eb62b099a4aab4eb54cc99df6ca444b83a6fb04c580c3380",
                  "descriptor_map":[
                     {
                        "id":"c00400f85e0aae79eb62b099a4aab4eb54cc99df6ca444b83a6fb04c580c3380",
                        "format":"ldp_vp",
                        "path":"$.proof"
                     }
                  ]
               },
               "verifiableCredential":[
                  {
                    "@context": [
                      "https://www.w3.org/2018/credentials/v1",
                      "https://purl.imsglobal.org/spec/ob/v3p0/context.json"
                    ],
                    "id": "urn:uuid:a63a60be-f4af-491c-87fc-2c8fd3007a58",
                    "type": [
                      "VerifiableCredential",
                      "OpenBadgeCredential"
                    ],
                    "name": "JFF x vc-edu PlugFest 2 Interoperability",
                    "issuer": {
                      "type": [
                        "Profile"
                      ],
                      "id": "did:key:z6MktiSzqF9kqwdU8VkdBKx56EYzXfpgnNPUAGznpicNiWfn",
                      "name": "Jobs for the Future (JFF)"
                    },
                    "issuanceDate": "2022-11-14T00:00:00Z",
                    "credentialSubject": {
                      "type": [
                        "AchievementSubject"
                      ],
                      "id": "did:key:z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd",
                      "achievement": {
                        "id": "urn:uuid:bd6d9316-f7ae-4073-a1e5-2f7f5bd22922",
                        "type": [
                          "Achievement"
                        ],
                        "name": "JFF x vc-edu PlugFest 2 Interoperability",
                        "description": "This credential solution supports the use of OBv3 and w3c Verifiable Credentials and is interoperable with at least two other solutions.  This was demonstrated successfully during JFF x vc-edu PlugFest 2.",
                        "criteria": {
                          "narrative": "Solutions providers earned this badge by demonstrating interoperability between multiple providers based on the OBv3 candidate final standard, with some additional required fields. Credential issuers earning this badge successfully issued a credential into at least two wallets.  Wallet implementers earning this badge successfully displayed credentials issued by at least two different credential issuers."
                        },
                        "image": {
                          "id": "https://w3c-ccg.github.io/vc-ed/plugfest-2-2022/images/JFF-VC-EDU-PLUGFEST2-badge-image.png",
                          "type": "Image"
                        }
                      }
                    },
                    "proof": [{
                      "type": "Ed25519Signature2018",
                      "created": "2022-10-19T17:59:37Z",
                      "verificationMethod": "did:key:z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd#z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd",
                      "proofPurpose": "assertionMethod",
                      "jws": "eyJhbGciOiJFZERTQSIsImI2NCI6ZmFsc2UsImNyaXQiOlsiYjY0Il19..0YMgLoK6F6Q47dvB2qQ79e1Dd27cjz4b5OnF2taQ38E0ZwtaA5GnS8igfTv2e_ZUbjalcwcPTq0u8Hf9CRLRDg"
                    }]
                  }
               ],
               "proof":{
                  "type":"Ed25519Signature2018",
                  "verificationMethod":"did:key:z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd#z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd",
                  "created":"2021-05-14T20:16:29.565377",
                  "proofPurpose":"authentication",
                  "challenge":"c13abd0fe67fcd1f3513e32b1ed5ad7c721e598ea0d1b9334ffecaa8e1a2fce6",
                  "jws":"eyJhbGciOiAiRWREU0EiLCAiYjY0IjogZmFsc2UsICJjcml0IjogWyJiNjQiXX0..7M9LwdJR1_SQayHIWVHF5eSSRhbVsrjQHKUrfRhRRrlbuKlggm8mm_4EI_kTPeBpalQWiGiyCb_0OWFPtn2wAQ"
               }
            }
         }
      }
   ]
}

The holder creates a dif/credential-manifest/[email protected] attachment which includes a VP that is a CredentialApplication. This includes a credential_application that links to the manifest from the offer message and the proof types they would be happy to receive. It also includes a presentation_submission that links to the presentation definition from the offer message. The descriptor_map describes where to find the challenge.. not sure if I got the JSONPath right for that. The verifiableCredential is the same one that the offer included however the holder has filled in the credentialSubject.id. Interestingly I had to also add a proof on there to make it a VC I think? Finally, that proof on the VP includes the challenge for DID Authentication.

[AlexAndrei98]

{'id': '9b2fed14-2896-428b-8868-c6550d722a1f',
 'type': 'https://didcomm.org/issue-credential/3.0/request-credential',
 'body': {'goal_code': 'issue-credential', 'comment': 'some comment'},
 'to': ['did:peer:2.Ez6LSms555YhFthn1WV8ciDBpZm86hK9tp83WojJUmxPGk1hZ.Vz6MkmdBjMyB4TS5UbbQw54szm8yvMMf1ftGV2sQVYAxaeWhE.SeyJpZCI6Im5ldy1pZCIsInQiOiJkbSIsInMiOiJodHRwczovL21lZGlhdG9yLnJvb3RzaWQuY2xvdWQiLCJhIjpbImRpZGNvbW0vdjIiXX0'],
 'attachments': [{'data': {'json': {'credential': {'@context': ['https://www.w3.org/2018/credentials/v1',
       'https://www.w3.org/2018/credentials/examples/v1'],
      'id': '9801c821-a3ab-4af3-90c4-b90687d7b67f',
      'type': ['VerifiableCredential', 'UniversityDegreeCredential'],
      'issuer': 'TBD',
      'issuanceDate': '2022-10-31T10:19:05Z',
      'credentialSubject': {'id': 'did:prism:a08f49e61bc46dc82b6bd54dd62087c25b53b4a7ef98e549ce62ee4ad3450d5c',
       'degree': {'type': 'BachelorDegree',
        'name': 'Bachelor of Science and Arts'}},
      'options': {'proofType': 'EcdsaSecp256k1Signature2019'}}}},
   'id': '55d6eb99-da03-473b-ac67-482c31978678',
   'media_type': 'application/json',
   'format': 'aries/[email protected]'}],
 'custom_headers': [{'return_route': 'all'}],
 'from': 'did:peer:2.Ez6LSdwaSDqrJj5a6b12XEWs56Rg8y2CbjoFnwSWaF76e4kaf.Vz6MkoZVLjr9tk1x2wdvHmk6eL8CbmfruaJSUeN2gxukFU2uS.SeyJpZCI6Im5ldy1pZCIsInQiOiJkbSIsInMiOiJodHRwczovL3d3dy5leGFtcGxlLmNvbS9ob2xkZXIiLCJhIjpbImRpZGNvbW0vdjIiXX0',
 'typ': 'application/didcomm-plain+json'}

[brianorwhatever]

We dropped the VC from the VP as it isn't required because the issuer knows what the VC looks like already. The rest is the same as WACI didcomm

{
   "type":"https://didcomm.org/issue-credential/3.0/request-credential",
   "id":"d00300b6c6db47e845e9f75c14fa2696c519245e4f5bd0ae30d3bfd6f691c098",
   "thid":"d00100bdf7f4b473232b49bc2a11dbda0ff10d418ba571205b252aa14dd294e1",
   "from":"did:peer:2.Ez6LSpSrLxbAhg2SHwKk7kwpsH7DM7QjFS5iK6qP87eViohud.Vz6MkqRYqQiSgvZQdnBytw86Qbs2ZWUkGv22od935YF4s8M7V.SeyJ0IjoiZG0iLCJzIjoiaHR0cHM6Ly9leGFtcGxlLmNvbS9lbmRwb2ludDEiLCJyIjpbImRpZDpleGFtcGxlOnNvbWVtZWRpYXRvciNzb21la2V5MSJdLCJhIjpbImRpZGNvbW0vdjIiLCJkaWRjb21tL2FpcDI7ZW52PXJmYzU4NyJdfQ",
   "to":[
      "did:web:aviary.id"
   ],
   "body":{
      
   },
   "attachments":[
      {
         "id":"d000003c48693771cd22c57096b09557002c41c6ab4ba0704bdd5781197656a4",
         "media_type":"application/json",
         "format":"dif/credential-manifest/[email protected]",
         "data":{
            "json":{
               "@context":[
                  "https://www.w3.org/2018/credentials/v1",
                  "https://identity.foundation/credential-manifest/application/v1"
               ],
               "type":[
                  "VerifiablePresentation",
                  "CredentialApplication"
               ],
               "credential_application":{
                  "id":"c00600022dca14affa8ab4a2e66765100f31a990e159022e7a498542c605c3da",
                  "manifest_id":"c001006f847f39073113b0ed862ff88c3c49669b4bbf5a30fcbec9f62d35cf98",
                  "format":{
                     "ldp_vc":{
                        "proof_type":[
                           "Ed25519Signature2018"
                        ]
                     }
                  }
               },
               "presentation_submission":{
                  "id":"c00300d10d25d00b9c7cf985637b88e4da3e2af2d644c74ced677784c30454c6",
                  "definition_id":"c00400f85e0aae79eb62b099a4aab4eb54cc99df6ca444b83a6fb04c580c3380",
                  "descriptor_map":[
                     {
                        "id":"c00400f85e0aae79eb62b099a4aab4eb54cc99df6ca444b83a6fb04c580c3380",
                        "format":"ldp_vp",
                        "path":"$.proof"
                     }
                  ]
               },
               "proof":{
                  "type":"Ed25519Signature2018",
                  "verificationMethod":"did:key:z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd#z6Mko2ceHiQqXGm1mzfQKdiGzc1czEBXvvgTpfroBwDjbwMd",
                  "created":"2021-05-14T20:16:29.565377",
                  "proofPurpose":"authentication",
                  "challenge":"c13abd0fe67fcd1f3513e32b1ed5ad7c721e598ea0d1b9334ffecaa8e1a2fce6",
                  "jws":"eyJhbGciOiAiRWREU0EiLCAiYjY0IjogZmFsc2UsICJjcml0IjogWyJiNjQiXX0..7M9LwdJR1_SQayHIWVHF5eSSRhbVsrjQHKUrfRhRRrlbuKlggm8mm_4EI_kTPeBpalQWiGiyCb_0OWFPtn2wAQ"
               }
            }
         }
      }
   ]
}

[brianorwhatever]

What I implemented below

{
    "type": "https://didcomm.org/issue-credential/3.0/request-credential",
    "id": "3715e334f7e05a94ec1903df67df5085077934895c6248a798ccc815329283b6",
    "thid": "28eec678f1b860daddc7d775fcfcf15d7310ea692e62e8b6f4518d4c0f35bdb0",
    "from": "did:peer:2.Vz6MknQLpgecyvcdpXSAmiAeMVxLYyFuggVEoNxuXEt5oScMn.Ez6LSo5h8SnuaqSkxkN9fWFM2GQMXcnQkp8C94ttA5GwLRHW1.SeyJpZCI6IiNkaWRjb21tIiwidCI6ImRtIiwicyI6Imh0dHBzOi8vcG9ydGN1bGxpcy4xa2VlcC5jb20vZGlkY29tbSIsInIiOlsiZGlkOndlYjpwb3J0Y3VsbGlzLjFrZWVwLmNvbSJdfQ",
    "to": [
        "did:web:verifiable.ink"
    ],
    "body": {},
    "attachments": [
        {
            "id": "5dac5a119db60503d2b6886b326250070a10694677c21680e925adeecde20a25",
            "media_type": "application/json",
            "format": "dif/credential-manifest/[email protected]",
            "data": {
                "json": {
                    "@context": [
                        "https://www.w3.org/2018/credentials/v1",
                        "https://identity.foundation/credential-manifest/application/v1"
                    ],
                    "id": "e292618e778e6ea221f73000c4667938753bcde65476c1efd27e6654e88bf5f2",
                    "type": [
                        "VerifiablePresentation",
                        "CredentialApplication"
                    ],
                    "credential_application": {
                        "id": "1e185b751474e93dc505ff42b4e83d8c5519f85d95eea4d6b25911fe667fc314",
                        "manifest_id": "b82273315d664fcd72c901f2a80c4fe35f4c78a5b90af670ca2efc19af5d2510",
                        "format": {
                            "ldp_vc": {
                                "proof_type": [
                                    "JsonWebSignature2020"
                                ]
                            }
                        }
                    },
                    "presentation_submission": {
                        "id": "fac0b0706889ef995c29fcb4b9eb8c9ccc35758969ef22ee4a974284e5bfc204",
                        "definition_id": "adb9348af72cc15d36ebfdcfe10001b7a85bf9e606483bae7dcb0b50dbeb070b",
                        "descriptor_map": [
                            {
                                "id": "adb9348af72cc15d36ebfdcfe10001b7a85bf9e606483bae7dcb0b50dbeb070b",
                                "format": "ldp_vp",
                                "path": "$.proof"
                            }
                        ]
                    },
                    "verifiableCredential": [],
                    "proof": {
                        "type": "JsonWebSignature2020",
                        "proofPurpose": "authentication",
                        "verificationMethod": "did:key:C4DFDAStSHdRnhvz1ZP5yTssTki6cVRCPk4535hBB6Yq#C4DFDAStSHdRnhvz1ZP5yTssTki6cVRCPk4535hBB6Yq",
                        "created": "2022-12-14T17:51:27Z",
                        "jws": "eyJiNjQiOmZhbHNlLCJjcml0IjpbImI2NCJdfQ..BYhlydKntcK0UwB2f5EN4j3kLkWIhHKEs2kRjejKPiF2c86YXK96HDH2_ClPQWvjm5nbO4aJSwipGRixLkSfBQ",
                        "challenge": "6980f6339e8baed1fd1f315ed88523f6a181eb5a29236f1667a23a1ca83821ae"
                    }
                }
            }
        }
    ]
}