@jaljs/js-zcred

JS JAL for zCred

Library to create JAL programs easily for zCred

JS JAL

const jalProgram = toJAL({
  target: "o1js:zk-program.cjs",
  credential: input.credential,
  publicInput: [
    attributes.subject.id.type,
    attributes.subject.id.key,
    attributes.document.sybilId,
    context.now
  ],
  commands: [
    assert(
      greaterOrEqual(
        sub(context.now, attributes.subject.birthDate),
        mul(Static(18, ["uint64-mina:field"]), Const("year"))
      )
    ),
    assert(
      greaterOrEqual(
        attributes.validUntil,
        context.now
      )
    )
  ],
  options: {
    signAlgorithm: "mina:pasta",
    hashAlgorithm: "mina:poseidon"
  }
});

Raw JAL equivalent

{
    "target": "o1js:zk-program.cjs",
    "inputSchema": {
      "private": {
        "credential": {
          "attributes": {
            "type": {
              "type": "setup",
              "transLinks": ["ascii-bytes", "bytes-uint128", "uint128-mina:field"],
            },
            "issuanceDate": {
              "type": "setup",
              "transLinks": ["isodate-bytesdate", "bytesdate-unixtime19", "unixtime19-uint64", "uint64-mina:field"]
            },
            "validFrom": {
              "type": "setup",
              "transLinks": ["isodate-bytesdate", "bytesdate-unixtime19", "unixtime19-uint64", "uint64-mina:field"]
            },
            "validUntil": {
              "type": "setup",
              "transLinks": ["isodate-bytesdate", "bytesdate-unixtime19", "unixtime19-uint64", "uint64-mina:field"]
            },
            "subject": {
              "id": {
                "type": {
                  "type": "setup",
                  "transLinks": ["ascii-bytes", "bytes-uint128", "uint128-mina:field"]
                },
                "key": {
                  "type": "setup",
                  "transLinks": ["0xhex-bytes", "bytes-uint", "uint-mina:field"]
                }
              },
              "birthDate": {
                "type": "setup",
                "transLinks": ["isodate-bytesdate", "bytesdate-unixtime19", "unixtime19-uint64", "uint64-mina:field"]
              },
              "firstName": {
                "type": "setup",
                "transLinks": ["utf8-bytes", "bytes-uint", "mina:mod.order", "uint-mina:field"]
              },
              "gender": {
                "type": "setup",
                "transLinks": ["ascii-bytes", "bytes-uint64", "uint64-mina:field"]
              },
              "lastName": {
                "type": "setup",
                "transLinks": ["utf8-bytes", "bytes-uint", "mina:mod.order", "uint-mina:field"]
              }
            },
            "countryCode": {
              "type": "setup",
              "transLinks": ["iso3166alpha3-iso3166numeric", "iso3166numeric-uint16", "uint16-mina:field"]
            },
            "document": {
              "id": {
                "type": "setup",
                "transLinks": ["utf8-bytes", "bytes-uint", "mina:mod.order", "uint-mina:field"]
              },
              "sybilId": {
                "type": "setup",
                "transLinks": ["base58-bytes", "bytes-uint", "mina:mod.order", "uint-mina:field"]
              }
            }
          },
          "proofs": {
            "mina:poseidon-pasta": {
              "mina:publickey:B62qmNen3kDN74CJ2NQteNABrEN4AurGTbsLrraPy6ipQgUV9Q73tv2": {
                "issuer": {
                  "id": {
                    "type": {
                      "type": "setup",
                      "transLinks": ["ascii-bytes", "bytes-uint", "mina:mod.order", "uint-mina:field"]
                    },
                    "key": {
                      "type": "setup",
                      "transLinks": ["base58-mina:publickey"]
                    }
                  }
                },
                "signature": {
                  "type": "setup",
                  "transLinks": ["base58-mina:signature"]
                }
              }
            }
          }
        }
      },
      "public": {
        "credential": {
          "attributes": {
            "subject": {
              "id": {
                "type": {
                  "type": "reference",
                  "path": ["private", "credential", "attributes", "subject", "id", "type"]
                },
                "key": {
                  "type": "reference",
                  "path": ["private", "credential", "attributes", "subject", "id", "key"]
                }
              }
            },
            "document": {
              "sybilId": {
                "type": "reference",
                "path": ["private", "credential", "attributes", "document", "sybilId"]
              }
            }
          }
        },
        "context": {
          "now": {
            "type": "setup",
            "transLinks": ["isodate-bytesdate", "bytesdate-unixtime19", "unixtime19-uint64", "uint64-mina:field"]
          }
        }
      }
    },
    "commands": [
      {
        "assert": {
          "in": [{
            "type": "function", "equal": {
              "in": [
                { "type": "reference", "path": ["private", "credential", "attributes", "subject", "id", "type"] },
                { "type": "reference", "path": ["public", "credential", "attributes", "subject", "id", "type"] }
              ]
            }
          }]
        }
      },
      {
        "assert": {
          "in": [{
            "type": "function", "equal": {
              "in": [
                { "type": "reference", "path": ["private", "credential", "attributes", "subject", "id", "key"] },
                { "type": "reference", "path": ["public", "credential", "attributes", "subject", "id", "key"] }
              ]
            }
          }]
        }
      },
      {
        "assert": {
          "in": [{
            "type": "function", "equal": {
              "in": [
                { "type": "reference", "path": ["private", "credential", "attributes", "document", "sybilId"] },
                { "type": "reference", "path": ["public", "credential", "attributes", "document", "sybilId"] }
              ]
            }
          }]
        }
      },
      {
        "assert": {
          "in": [{
            "type": "function", "equal": {
              "in": [
                { "type": "reference", "path": ["public", "context", "now"] },
                { "type": "reference", "path": ["public", "context", "now"] }
              ]
            }
          }]
        }
      },
      {
        "assert": {
          "in": [{
            "type": "function", "greaterEqual": {
              "in": [
                {
                  "type": "function", "sub": {
                    "in": [
                      { "type": "reference", "path": ["public", "context", "now"] },
                      { "type": "reference", "path": ["private", "credential", "attributes", "subject", "birthDate"] }
                    ]
                  }
                },
                {
                  "type": "function", "mul": {
                    "in": [
                      { "type": "static", "value": 18, "transLinks": ["uint64-mina:field"] },
                      { "type": "constant", "name": "year" }
                    ]
                  }
                }
              ]
            }
          }]
        }
      },
      {
        "assert": {
          "in": [{
            "type": "function", "verifySign": {
              "in": [
                "mina:pasta",
                {
                  "type": "reference",
                  "path": [
                    "private", "credential", "proofs", "mina:poseidon-pasta",
                    "mina:publickey:B62qmNen3kDN74CJ2NQteNABrEN4AurGTbsLrraPy6ipQgUV9Q73tv2",
                    "signature"
                  ]
                },
                {
                  "type": "function", "hash": {
                    "in": [
                      "mina:poseidon",
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "countryCode"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "document", "id"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "document", "sybilId"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "issuanceDate"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "birthDate"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "firstName"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "gender"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "id", "key"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "id", "type"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "subject", "lastName"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "type"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "validFrom"]
                      },
                      {
                        "type": "reference",
                        "path": ["private", "credential", "attributes", "validUntil"]
                      }
                    ]
                  }
                },
                {
                  "type": "reference",
                  "path": [
                    "private", "credential", "proofs", "mina:poseidon-pasta",
                    "mina:publickey:B62qmNen3kDN74CJ2NQteNABrEN4AurGTbsLrraPy6ipQgUV9Q73tv2",
                    "issuer", "id", "key"
                  ]
                }
              ]
            }
          }]
        }
      }
    ]
  }