The term communication theory is identified in base64 scheme by the sequence Y29tbXVuaWNhdGlvbiB0aGVvcnk=, while the MD5 signature is equal to 449cb26c63a76403bb6259740d8bc3fa. The ASCII encoding of communication theory in hexadecimal notation is 636f6d6d756e69636174696f6e207468656f7279.