{
   "title":"SIG-03:  Counter Signature example",
   "input":{
      "plaintext":"This is the content.",
      "sign":{
         "countersign":{
            "signers":[
               {
                  "key":{
                     "kty":"EC",
                     "kid":"11",
                     "crv":"P-256",
                     "x":"usWxHK2PmfnHKwXPS54m0kTcGJ90UiglWiGahtagnv8",
                     "y":"IBOL-C3BttVivg-lSreASjpkttcsz-1rb7btKLv8EX4",
                     "d":"V8kgd2ZBRuh2dgyVINBUqpPDr7BOMGcF22CQMIUHtNM"
                  },
                  "unprotected":{
                     "kid":"11"
                  },
                  "protected":{
                     "alg":"ES256"
                  }
               }
            ]
         },
         "signers":[
            {
               "key":{
                  "kty":"EC",
                  "kid":"11",
                  "crv":"P-256",
                  "x":"usWxHK2PmfnHKwXPS54m0kTcGJ90UiglWiGahtagnv8",
                  "y":"IBOL-C3BttVivg-lSreASjpkttcsz-1rb7btKLv8EX4",
                  "d":"V8kgd2ZBRuh2dgyVINBUqpPDr7BOMGcF22CQMIUHtNM"
               },
               "unprotected":{
                  "kid":"11"
               },
               "protected":{
                  "alg":"ES256"
               }
            }
         ]
      },
      "rng_description":"seed for signature"
   },
   "intermediates":{
      "signers":[
         {
            "ToBeSign_hex":"85695369676E61747572654043A101264054546869732069732074686520636F6E74656E742E"
         }
      ],
      "countersigners":[
         {
            "ToBeSign_hex":"8570436F756E7465725369676E61747572654043A101264054546869732069732074686520636F6E74656E742E"
         }
      ]
   },
   "output":{
      "cbor_diag":"98([h'', {7: [h'A10126', {4: h'3131'}, h'5AC05E289D5D0E1B0A7F048A5D2B643813DED50BC9E49220F4F7278F85F19D4A77D655C9D3B51E805A74B099E1E085AACD97FC29D72F887E8802BB6650CCEB2C']}, h'546869732069732074686520636F6E74656E742E', [[h'A10126', {4: h'3131'}, h'E2AEAFD40D69D19DFE6E52077C5D7FF4E408282CBEFB5D06CBF414AF2E19D982AC45AC98B8544C908B4507DE1E90B717C3D34816FE926A2B98F53AFD2FA0F30A']]])",
      "cbor":"D8628440A1078343A10126A10442313158405AC05E289D5D0E1B0A7F048A5D2B643813DED50BC9E49220F4F7278F85F19D4A77D655C9D3B51E805A74B099E1E085AACD97FC29D72F887E8802BB6650CCEB2C54546869732069732074686520636F6E74656E742E818343A10126A1044231315840E2AEAFD40D69D19DFE6E52077C5D7FF4E408282CBEFB5D06CBF414AF2E19D982AC45AC98B8544C908B4507DE1E90B717C3D34816FE926A2B98F53AFD2FA0F30A"
   }
}