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example-recursive-sd-jwt-01.md

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Example 3: SD-JWT with Recursive Disclosures

Check specification Example 3: SD-JWT with Recursive Disclosures

The Issuer may also decide to make the address claim contents selectively disclosable recursively, i.e., the address claim is made selectively disclosable as well as its sub-claims:

val recursiveSdJwt =
    sdJwt {
        claim("iss", "https://issuer.example.com")
        claim("iat", 1683000000)
        claim("exp", 1883000000)
        claim("sub", "6c5c0a49-b589-431d-bae7-219122a9ec2c")

        sdObjClaim("address") {
            sdClaim("street_address", "Schulstr. 12")
            sdClaim("locality", "Schulpforta")
            sdClaim("region", "Sachsen-Anhalt")
            sdClaim("country", "DE")
        }
    }

Produces

{
  "iss": "https://issuer.example.com",
  "iat": 1683000000,
  "exp": 1883000000,
  "sub": "6c5c0a49-b589-431d-bae7-219122a9ec2c",
  "_sd": [
    "jUAs7yfMFRJWitbYdaLkjp0n53IjoquziD_0SK-5lsk"
  ],
  "_sd_alg": "sha-256"
}

and the following disclosures (salt omitted):

[
  ["...salt...","street_address","Schulstr. 12"],
  ["...salt...","locality","Schulpforta"],
  ["...salt...","region","Sachsen-Anhalt"],
  ["...salt...","country","DE"],
  ["...salt...","address",{"_sd":["gQondEr5yGFkFRGgcrz79J6oCUg2MRl_Zk-rRNuDbw0","j2yFIn_eXU4ppH5WqgRS3SAwwL50USZHOfI3JgXe7E4","mJXm4JuM-fRcog21XYUbPEY7L8O7WLbAmbVWxYpjx54","eJ9fi4cAqh1SJ5hpYkerDgIY_SNuHEQ9_QUqR4f4duw"]}]
]

You can get the full code here.