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Historical resources

Cryptography Tutorials - Herong's Tutorial Examples

This cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include blowfish, certificate, cipher, decryption, DES, digest, encryption, keytool, MD5, OpenSSL, PEM, PKCS#8, PKCS#12, private key, public key, RSA, secret key, SHA1, SSL, X.509.

Andy's Enigmatic Web Page

Download an Enigma emulator for Windows

Enigma Cipher Machine by Tony Sale

Explains how the device enciphers letters, background history, components of the machine, and military adaptation by the Germans. Also, includes information about Turing and Polish mathematicians contribution in breaking the code.

A Cryptographic Compendium

Discusses the types of cipher systems that have been used in the past. Page includes illustrations and tables. Written by John Savard.

Crypto Museum

Photos, manuals, and other information about the German Enigma, the M-209, and other old encryption machines.

Cipher Mysteries

News, views, research and reviews of historical ciphers in fiction and non-fiction.