Cryptanalysis Websites
CrypTool - Educational Tool for Cryptography and Cryptanalysis
The application Cryptool is a free e-learning application for Windows. You can use it to apply and analyze cryptographic algorithms. The current version of Cryptool is used all over the world. It supports both contemporary teaching methods at schools and universities as well as awareness training for employees.
1,253,180 
$ 480.00
The Chaocipher Clearing House
Clearing house for work being done to break the Chaocipher
Not Applicable $ 8.95
Enrico Zimuel | Trust me, I'm a software developer
Enrico Zimuel, software developer since 1996. Open source contributor, author of books and articles about web programming and applied cryptography, international speaker.
669,430 $ 960.00
Welcome to Cryptography.org
Strong cryptographic software, libraries, and information about cryptography, data security, and privacy.
1,002,435 $ 720.00
CrypTool-Online
CrypTool-Online - Ein spannender Einblick in die Welt der Kryptologie.
426,019 $ 5,400.00
Bienvenue [Root Me : plateforme d'apprentissage dédiée au Hacking et à la Sécurité de l'Information]
Documentation, Applicatif, Phreaking, Cryptologie, Challenges, Outils, Analyseur, Backdoor, Firewall, Anti-Virus, en, Réseaux, Cracking, Web, Web - Client, Programmation, Cryptanalyse, Communauté, Scanneur, DNS, Challenges, Compilation, IDE, IDS, Désassembleur, H-IDS, N-IDS, DHCP, Application, Présentation, Session,...
525,327 $ 1,440.00
Codebreaking Tools
Codebreaking Tools, Cryptanalysis Tools, Codebreaking, Cryptanalysis, Codes, Ciphers, Break Codes, Modular Arithmetic, Hill cipher, Affine Cipher, Equivalences Modulo 26, Mod 26, Inverse Mod 26, Inverse Modulo 26, Encoded puzzles, Cryptograms, brain teasers, puzzles.
Not Applicable $ 8.95
Frode Weierud’s CryptoCellar
Frode's Cryptology Page is dedicated to the history of cryptography, cipher machines and their simulation, cryptanalysis and other code breaking techniques.
5,647,020 $ 240.00