{
   "title":"p521-hkdf-512-01: ECDH-ES direct w/ hkdf-sha-512 for 128-bit key",
   "input":{
      "plaintext":"This is the content.",
      "enveloped":{
         "protected":{
            "alg":"A128GCM"
         },
         "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-512"
               },
               "unprotected":{
                  "kid":"meriadoc.brandybuck@buckland.example"
               }
            }
         ]
      },
      "rng_stream":[
         "02D1F7E6F26C43D4868D87CEB2353161740AACF1F7163647984B522A848DF1C3C9CF4DF2FE6C632BF7886413F76E88526B37FD0B58734CA925A389AD361ECEF28358",
         "CFDC1CA6D690CF1964458D42"
      ]
   },
   "intermediates":{
      "AAD_hex":"8367456E637279707443A1010140",
      "CEK_hex":"4305A0DB93F7430FB33C4C3F242F71E7",
      "recipients":[
         {
            "Context_hex":"840183F6F6F683F6F6F682188044A1013819",
            "Secret_hex":"0160609877A8E8E9DED36EF765FD42D1F75AFF205585F0D9EE756CE26ED61C965FD4253025AB54650B1F81D88B331BE6264034EA1B3BCC7F041685CE095936674DF5"
         }
      ]
   },
   "output":{
      "cbor_diag":"96([h'A10101', {5: h'CFDC1CA6D690CF1964458D42'}, h'B994CCC29C6490FEE1AD6EA997248CDFCF7BE6F7283224006B5E7BBE9958435CFA553D0F', [[h'A1013819', {-1: {1: 2, -1: 3, -2: h'00F11B8FBCB163447DE1FBB059CB56B46654CAAB99D13BA0FB5858783E89990754729682F04F6AC4AC3DD36451940AFA933D373BF1D7015D4FD7530DD48DED8CAA8C', -3: h'00A806098B016CDBB9E66042C2C30C7C18F8AA7F5851517FA1B154E42EB2C69EAD1A063457F37A996B2E139193F1AB3B5B5CD345288D7375F35F6E1DC515F1B05876'}, 4: h'6D65726961646F632E6272616E64796275636B406275636B6C616E642E6578616D706C65'}, h'']]])",
      "cbor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
   }
}