A Cipher Letter To Santa

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So Santa has been busy this year and has been getting through the letters that kids have sent him. But he opens up one, and he can’t make any sense of it. So he calls over his cipher elf to see if he can help. “It is all just a bunch of 1’s and 0’s, and it doesn’t fit anything I know”, says Santa. So the cipher elf takes a look:

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Prof Bill Buchanan OBE FRSE
ASecuritySite: When Bob Met Alice

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.