Military Cryptanalysis: Simpler Varieties of Aperiodic Substitution Systems

出版者:Aegean Park Press

作者:William F. Friedman

页数:0

出版时间:1993-12

价格:USD 32.80

装帧:Paperback

isbn号码:9780894121968

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This book, until very recently classified CONFIDENTIAL by the U.S. Government, provides heretofore unpublished methods for the solution of ciphertext and plaintext auto-key systems.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.