发表于2024-11-27
Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems 2024 pdf epub mobi 电子书
图书标签: cryptography
This book, until very recently classified CONFIDENTIAL by the U.S. Government, provides heretofore unpublished methods for the solution of ciphertext and plaintext auto-key systems.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.
Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems 2024 pdf epub mobi 电子书