{
   "title":"p521-hkdf-256-01: ECDH-ES direct w/ hkdf-sha-256 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"
               },
               "unprotected":{
                  "kid":"meriadoc.brandybuck@buckland.example"
               }
            }
         ]
      },
      "rng_stream":[
         "02D1F7E6F26C43D4868D87CEB2353161740AACF1F7163647984B522A848DF1C3C9CF4DF2FE6C632BF7886413F76E885252908DF901D1581A045444DD996E1704B9B6",
         "3082660901A9B9CD87AACB71"
      ]
   },
   "intermediates":{
      "AAD_hex":"8367456E637279707443A1010140",
      "CEK_hex":"31D3ED9B92E9AC877FDBE347D99F1CD7",
      "recipients":[
         {
            "Context_hex":"840183F6F6F683F6F6F682188044A1013818",
            "Secret_hex":"016E8DA1F5F19FDEBF29D358D3CDBE5EA8B9178A7AD3F0DB6BEB110002EF597BC67CEC1472FD1079143300176214E2C61300344EBDA4740D0F4A29521011C5DF5F48"
         }
      ]
   },
   "output":{
      "cbor_diag":"96([h'A10101', {5: h'3082660901A9B9CD87AACB71'}, h'E4BB61A1BF4DB80CD9345BB7AA9D46844763AC0B242F09D43744B83D8C48C4E87BC90775', [[h'A1013818', {-1: {1: 2, -1: 3, -2: h'007490FF6DC6C8FAA34D07627DDD725EF11B8D901C931DBF3BC2EB4A9445CEDC752A62A4DC63CD80BDDDF5A0C7CB164479C4ADAABAAC7A78D03E0EC8496D4740FCF4', -3: h'019D3F45929FC96E122FCEBB8FC426DA84A36EF177AFDC894DC111ACD7AF9F7120EFC0D0BE7F48716DB7EB30B65ADEDF5294651E3BDD2ED921EA0A7A88FC77D3394D'}, 4: h'6D65726961646F632E6272616E64796275636B406275636B6C616E642E6578616D706C65'}, h'']]])",
      "cbor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
   }
}