The term helen adams keller is identified in base64 scheme by the sequence aGVsZW4gYWRhbXMga2VsbGVy, while the MD5 signature is equal to 26bbc4f274ec1dca3118a900fd47443c. The ASCII encoding of helen adams keller in hexadecimal notation is 68656c656e206164616d73206b656c6c6572.