The term independent variable is identified in base64 scheme by the sequence aW5kZXBlbmRlbnQgdmFyaWFibGU=, while the MD5 signature is equal to 1a270f392dbf0e47e8c1c245d3c9a0bd. The ASCII encoding of independent variable in hexadecimal notation is 696e646570656e64656e74207661726961626c65.