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The Code Book: The Secret History of Codes and Code-breaking by Simon Singh
£6.49
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Cryptanalysis by Helen Fouche Gaines
£6.74
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Cryptography: A Very Short Introduction (Very Short Introductions) by Fred C. Piper
£5.24
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Applied Cryptography: Protocols, Algorithms and Source Code in C by Bruce Schneier
£20.99
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Secrets and Lies: Digital Security in a Networked World by Bruce Schneier
£7.99
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