圖書標籤: cryptography
发表于2024-11-23
Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems pdf epub mobi txt 電子書 下載 2024
This book, until very recently classified CONFIDENTIAL by the U.S. Government, provides heretofore unpublished methods for the solution of ciphertext and plaintext auto-key systems. In addition, the text contains general principles for the solution of cipher systems employing long or continuous keys. Text contains information concerning the coincidence test, cross-product test, and the monoalphabeticity or phi test.
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Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems pdf epub mobi txt 電子書 下載 2024