Secret Code Breaker: A Cryptanalyst's Handbook (with 3 1/2" program diskette)by Robert Reynard
Other chapters explain the use of frequency analysis, the German Enigma cipher machine, and how to use the computer programs which
A useful book on how to solve a variety of cipher systems with a computer. Separate chapters describe the Skytale cipher, Polybius Square cipher, Caesar cipher, Vigenere, Transposition, Monoalphabetic Keyword and M-94 ciphers.
Other chapters explain the use of frequency analysis, the German Enigma cipher machine, and how to use the computer programs which simulate the operation of the M-94 and the Enigma machine. For each type of cipher there are encrypted messages to solve by using the computer programs on the diskette. These include a series of secret messages actually sent by secret agents, spies and military commanders beginning with the Revolutionary War and ending with a message from KGB to CIA ; Aldrich Ames in 1992. The author calls the real messages a kind of "final exam"; for the amateur cryptanalyst. Detailed instructions explain how to use the programs and helpful notes are at the end of each chapter. Reynard also intersperses his text with historical cryptologic tidbits. The book is recommended for beginning and intermediate cryptanalysts and for anyone who wants to experience the use of a computer to solve various ciphers.
- Smith & Daniel Publishing
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