{
   "title":"HMAC-03: Direct key + HMAC-SHA512",
   "input":{
      "plaintext":"This is the content.",
      "mac":{
         "alg":"HS512",
         "protected":{
            "alg":"HS512"
         },
         "recipients":[
            {
               "unprotected":{
                  "alg":"direct",
                  "kid":"sec-64"
               },
               "key":{
                  "kty":"oct",
                  "kid":"sec-64",
                  "use":"enc",
                  "k":"hJtXIZ2uSN5kbQfbtTNWbpdmhkV8FJG-Onbc6mxCcYgAESIzd4iZqiEiIyQlJicoqrvM3e7_paanqKmgsbKztA"
               }
            }
         ]
      }
   },
   "intermediates":{
      "ToMac_hex":"84634D414343A101074054546869732069732074686520636F6E74656E742E",
      "CEK_hex":"849B57219DAE48DE646D07DBB533566E976686457C1491BE3A76DCEA6C42718800112233778899AA2122232425262728AABBCCDDEEFFA5A6A7A8A9A0B1B2B3B4",
      "recipients":[
         {
         }
      ]
   },
   "output":{
      "cbor_diag":"97([h'A10107', {}, h'546869732069732074686520636F6E74656E742E', h'CD28A6B3CFBBBF214851B906E050056CB438A8B88905B8B7461977022711A9D8AC5DBC54E29A56D926046B40FC2607C25B344454AA5F68DE09A3E525D3865A05', [[h'', {1: -6, 4: h'7365632D3634'}, h'']]])",
      "cbor":"D8618543A10107A054546869732069732074686520636F6E74656E742E5840CD28A6B3CFBBBF214851B906E050056CB438A8B88905B8B7461977022711A9D8AC5DBC54E29A56D926046B40FC2607C25B344454AA5F68DE09A3E525D3865A05818340A2012504467365632D363440"
   }
}