{
   "title":"p521-hkdf-256-03: ECDH-ES direct w/ hkdf-sha-256 for 512-bit key",
   "input":{
      "plaintext":"This is the content.",
      "mac":{
         "alg":"HS512",
         "protected":{
            "alg":"HS512"
         },
         "recipients":[
            {
               "key":{
                  "kty":"EC",
                  "kid":"bilbo.baggins@hobbiton.example",
                  "use":"enc",
                  "crv":"P-521",
                  "x":"AHKZLLOsCOzz5cY97ewNUajB957y-C-U88c3v13nmGZx6sYl_oJXu9A5RkTKqjqvjyekWF-7ytDyRXYgCF5cj0Kt",
                  "y":"AdymlHvOiLxXkEhayXQnNCvDX4h9htZaCJN34kfmC6pV5OhQHiraVySsUdaQkAgDPrwQrJmbnX9cwlGfP-HqHZR1",
                  "d":"AAhRON2r9cqXX1hg-RoI6R1tX5p2rUAYdmpHZoC1XNM56KtscrX6zbKipQrCW9CGZH3T4ubpnoTKLDYJ_fF3_rJt"
               },
               "protected":{
                  "alg":"ECDH-ES"
               },
               "unprotected":{
                  "kid":"meriadoc.brandybuck@buckland.example"
               }
            }
         ]
      },
      "rng_stream":[
         "02D1F7E6F26C43D4868D87CEB2353161740AACF1F7163647984B522A848DF1C3C9CF4DF2FE6C632BF7886413F76E88522CD81CA6C3B47139724AD1D4309098EC95C7"
      ]
   },
   "intermediates":{
      "CEK_hex":"9A3F086047F3B11D76CA2CC22D059DB1E49A19A0CEA662CC248315322B360DAF9C8B41E5F254A4E4325C77AE211F3D584C4D0AA88910E38C563E478A1F4D463B",
      "recipients":[
         {
            "Context_hex":"840783F6F6F683F6F6F68219020044A1013818",
            "Secret_hex":"003271CD2F2F0962656429F6837FAFD57FA79A5A65679D5F48B2ED478EE808ED3A74EB465932289860AD7C119D3AB74BDE63F8618F99D86279AACFD4B596C450F16C"
         }
      ],
      "ToMac_hex":"84634D414343A101074054546869732069732074686520636F6E74656E742E"
   },
   "output":{
      "cbor_diag":"97([h'A10107', {}, h'546869732069732074686520636F6E74656E742E', h'CA8E6BC30FA2433A04311CBE75AC2994C5BCCE073B00116E2545A7278F194782F12B5E7B7A449735762B2882498F2F633FF31F37C8961A23B4B119103AAA3A36', [[h'A1013818', {-1: {1: 2, -1: 3, -2: h'000E2CE3AA90FB69E4C648BABA21A8B616ACF6D9F2AF7699888DD8FF9A6DF164B059F6842AD27DD24F1893FAC8D5C03283CF60211F9D17138662DC8F1547C289C2A5', -3: h'0084D56A168242745AA99EFDA9D58D4439EEC0A6AA434918BC549F57F31F38B2C0A80FF0B8754367F315D1BE1D805BB95DA3880E01035E760E92CA8517D313F591EE'}, 4: h'6D65726961646F632E6272616E64796275636B406275636B6C616E642E6578616D706C65'}, h'']]])",
      "cbor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
   }
}