The term alistair cooke is identified in base64 scheme by the sequence YWxpc3RhaXIgY29va2U=, while the MD5 signature is equal to b6f0fa3f8ff96476ead172a6ae6e8e2f. The ASCII encoding of alistair cooke in hexadecimal notation is 616c69737461697220636f6f6b65.