option1-flat-sd-jwt.md

Option 1: Flat SD-JWT

Check specification Option 1: Flat SD-JWT

The example bellow demonstrates the usage of the library mixed with the Kotlinx Serialization DSL to produce a SD-JWT which contains claim sub plain and address is selectively disclosed as a whole. Also, standard JWT claims have been added plain (iss, iat, exp)

    @SDJWTBuilder
    var structured: SdElement {
      ConstantClaims.iat(time: Date())
      ConstantClaims.exp(time: Date() + 3600)
      ConstantClaims.iss(domain: "https://example.com/issuer")
      ConstantClaims.sub(subject: "6c5c0a49-b589-431d-bae7-219122a9ec2c")

      FlatDisclosedClaim(
        "address", [
          "street_address": "Schulstr. 12",
          "locality": "Schulpforta",
          "region": "Sachsen-Anhalt",
          "country": "DE"
        ]
      )
    }

Payload JSON Value of sdjwt
==============================
{
  "exp" : 1693475273,
  "iss" : "https:\/\/example.com\/issuer",
  "_sd_alg" : "sha-256",
  "sub" : "6c5c0a49-b589-431d-bae7-219122a9ec2c",
  "iat" : 1693471673,
  "_sd" : [
    "SpQRt2W21ObUsgynLQkDLPwjHXtWa2z4MU3aFG6lfp8"
  ]
}
==============================
With Disclosures
==============================
["30hrimjEfcym7kXSqOFxww","adress",{"street_address":"Schulstr. 12","region":"Sachsen-Anhalt","country":"DE","locality":"Schulpforta"}]
==============================