Enigma

by Władysław Kozaczuk

Several machine ciphers and methods for their solution ..

by Friedman, William F.

Enigma Machine Cipher : Encrypt and Decrypt in History

by Lacie Palinkas

The German Enigma cipher machine

by David Kahn

The emperor's codes

by Michael Smith

The Secret War

by Max Hastings

Este es un libro sobre algunas de las personas más fascinantes que participaron en la segunda guerra mundial.

German Cipher Machines of World War II

by David P. Mowry

Lotto Cipher / Time Machine

by Frank Armanno Sr.

Codes and Ciphers

by R. F. Churchhouse

For at least two thousand years there have been people who wanted to send messages which could only be read by the peopl...

Big Machines

by Stephen J Kelley

Cryptanalysis of the Single Rotor Cipher Machine (Cryptograp...

by Donald A. Dawson

Best "Thinking Machine" Detective Stories

by Jacques Futrelle

NSA Secrets Declassified

by National Security Agency (NSA), U. S. Government

Spy Code Handbook

by Duncan Ball, Ian Ball

NSA Secrets Declassified : Solving the Enigma

by National Security Agency (NSA), U. S. Government

Delusions of intelligence

by R. A. Ratcliff

George Fabyan

by Richard Munson

Machine cryptography and modern cryptanalysis

by Cipher A. Deavours

The God Machine

by J.G. Sandom

The emperor's codes

by Michael Smith