CredentialCreationChallengeDataDto

Registering the client's first credential: nothing exists to sign with yet, so the credential
proves itself by being created against the challenge.

{
    "state": "created",
    "type": "credentialRegistration",
    "challenge": {
        "challenge": "string",
        "relyingPartyId": "string",
        "relyingPartyName": "string",
        "userId": "2c4a230c-5085-4924-a3e1-25fb4fc5965b",
        "userName": "string",
        "userDisplayName": "string",
        "pubKeyCredParams": [
            {
                "type": "publicKey",
                "alg": "rS256"
            }
        ]
    },
    "confirmation": {
        "device": {},
        "registeredCredential": {
            "kind": "webAuthn",
            "credentialId": "string",
            "clientData": "string",
            "attestationData": "string"
        },
        "newRecoveryCredential": {
            "kind": "webAuthn",
            "credentialId": "string",
            "clientData": "string",
            "attestationData": "string",
            "encryptedPrivateKey": "string"
        }
    }
}