英文原版 Cryptanalysis 密码分析加密及破译密码研究 Helen Fouche Gaines 英文版进口英语原版书籍

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广东广州

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作者Helen Fouché Gaines

出版社Dover Publications

ISBN9780486200972

出版时间1989-04

装帧平装

定价128元

货号YB-85729

上书时间2024-06-27

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商品描述: 内容摘要
Gaines's Cryptanalysis (formerly published as Elementary Cryptanalysis) is a standard elementary and intermediate text for persons seriously interested in modern science methods for enciphering and deciphering cryptograms. It does not simply repeat older material, but contains much about modern cryptanalysis that is not generally known except to experts. It is especially strong in modern forms of cipher solution. This clear and thorough text also provides the reader with 166 specimen codes to solve. This edition for the first time also includes solutions. A special appendix includes final letters, sequence charts, digram, trigram tables, most common words in English and frequencies in English, German, French, Italian, Spanish, and Portuguese.