The term brass knuckles is identified in base64 scheme by the sequence YnJhc3Mga251Y2tsZXM=, while the MD5 signature is equal to 83a38b608a8e6b5f3db9a5541dc2cb9c. The ASCII encoding of brass knuckles in hexadecimal notation is 6272617373206b6e75636b6c6573.