Codes and Ciphers: Julius Caesar, the Enigma, and the Internet by Robert Churchh
54,00 €
Preface; 1. Introduction; 2. From Julius Caesar to simple substitution; 3. Polyalphabetic systems; 4. Jigsaw ciphers; 5. Two-letter ciphers; 6. Ciphers for spies; 8. Producing random numbers and letters; 9.
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