The term once and for all is identified in base64 scheme by the sequence b25jZSBhbmQgZm9yIGFsbA==, while the MD5 signature is equal to 141c67a575d5023f6d8d5d483f048b21. The ASCII encoding of once and for all in hexadecimal notation is 6f6e636520616e6420666f7220616c6c.