Scan barcode
—
William F. Friedman
119 pages • first pub 1939 (editions)
ISBN/UID: 9780894121968
Format: Paperback
Language: English
Publisher: Aegean Park Press
Publication date: Not specified
Description
This book, until very recently classified CONFIDENTIAL by the U.S. Government, provides heretofore unpublished methods for the solution of ciphertext and plaintext auto-key systems.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 solutio...
Community Reviews
Content Warnings
—
William F. Friedman
119 pages • first pub 1939 (editions)
ISBN/UID: 9780894121968
Format: Paperback
Language: English
Publisher: Aegean Park Press
Publication date: Not specified
Description
This book, until very recently classified CONFIDENTIAL by the U.S. Government, provides heretofore unpublished methods for the solution of ciphertext and plaintext auto-key systems.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 solutio...
Community Reviews
Content Warnings