The term mutual understanding is identified in base64 scheme by the sequence bXV0dWFsIHVuZGVyc3RhbmRpbmc=, while the MD5 signature is equal to abd2408acce77fcbb5ca29687703a28c. The ASCII encoding of mutual understanding in hexadecimal notation is 6d757475616c20756e6465727374616e64696e67.