Sandy Maguire
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The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography, by Simon Singh

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He grappled day and night with the ADFGVX cipher, in the process losing 15 kg in weight.
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The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography
The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography
by Simon Singh
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