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JEnigma is a java API to implement the Enigma cipher. Any combination of rotors, plugboard and reflector can be setup as a JEnigma machine. The specific rotors and reflectors that were used by the German military have implementations ready for direct use. The current version of JEnigma (v1.0) is ... [More]
caesarcrack is a native (C++) program which analyzes a ciphertext for character frequency distribution; given the distribution, computes the shift register of the caesian cipher. Take for example: "what we wish, we readily believe, and what we ourselves think, we imagine others think ... [More]
Charemap is a little program to play with substitution ciphers. It's able to remap text, perform characters and word analysis and to automatically decrypt ciphertext.