{
   "title":"p521-hkdf-512-02: ECDH-ES direct w/ hkdf-sha-512 for 256-bit key",
   "input":{
      "plaintext":"This is the content.",
      "enveloped":{
         "protected":{
            "alg":"A256GCM"
         },
         "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":[
         "02D1F7E6F26C43D4868D87CEB2353161740AACF1F7163647984B522A848DF1C3C9CF4DF2FE6C632BF7886413F76E885238FB137F6C20764D89E26452937675B5E3B4",
         "E89FD3534E1ABAF69C65CFE0"
      ]
   },
   "intermediates":{
      "AAD_hex":"8367456E637279707443A1010340",
      "CEK_hex":"FA902BA75151B03E11DDEED3CD7AD960E00BF9167C530F26CDD109B9B9ECA6A5",
      "recipients":[
         {
            "Context_hex":"840383F6F6F683F6F6F68219010044A1013819",
            "Secret_hex":"01905FA93AA5FB44C53AABA86D94CCE215FFDD03D362D257B32366A424BCC89050D8515DA5D1AE13AA253233A52DC6F8A7EF2209B784E527B752161EAAB070164F04"
         }
      ]
   },
   "output":{
      "cbor_diag":"96([h'A10103', {5: h'E89FD3534E1ABAF69C65CFE0'}, h'1187EFE3B75F733299723024E3A1335962AB622D69587A716851ABEBD303977509DD491C', [[h'A1013819', {-1: {1: 2, -1: 3, -2: h'01E3A6C126F1C3C27C38FC723A696C5E233F504D911516AE2899595EB6376A71AEE95911EDE9F372205A5BAFDA006B6F0EDCC6288705C6BCE357B537E54863B93C4A', -3: h'0066E0423D3BEFC80194FC9A0EB7D9AE63F7F7CDE74030A79D9F3E9CEDF221E1999605CF908ED44515B8F6B8BC816325380960383EF3EE8D08635FF0305BE6F5164B'}, 4: h'6D65726961646F632E6272616E64796275636B406275636B6C616E642E6578616D706C65'}, h'']]])",
      "cbor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
   }
}