{
   "anyOf": [
      {
         "type": "object",
         "required": [
            "x5c"
         ],
         "properties": {
            "x5c": {
               "type": "array",
               "items": {
                  "type": "string",
                  "title": "X509CertificateBase64Url"
               },
               "title": "CertificateChainBase64Url<X509CertificateBase64Url>"
            }
         },
         "title": "android-key"
      },
      {
         "type": "object",
         "required": [
            "attestation",
            "clientDataJSON"
         ],
         "properties": {
            "attestation": {
               "type": "string",
               "title": "ByteArrayBase64Url"
            },
            "clientDataJSON": {
               "type": "string",
               "title": "ByteArrayBase64Url"
            }
         },
         "title": "ios-appattest"
      },
      {
         "type": "object",
         "required": [
            "x5c"
         ],
         "properties": {
            "x5c": {
               "type": "string",
               "title": "X509CertificateBase64Url"
            }
         },
         "title": "self"
      }
   ],
   "title": "Attestation"
}