The term trial-and-error is identified in base64 scheme by the sequence dHJpYWwtYW5kLWVycm9y, while the MD5 signature is equal to 5d8d0c85396e17b16de74213bd33371b. The ASCII encoding of trial-and-error in hexadecimal notation is 747269616c2d616e642d6572726f72.