HcryptoJ (Historical cryptology in Java) is a Java based programming library for implementing and analyzing historical ciphers. HcryptoJ is designed to support research and teaching in historical cryptography and computer science. Licensed under GPL.

Features

  • Extensible object-oriented design modeled after the Java Cryptography Extension (JCE).
  • General enough to implement any symmetrical key cipher that maps plaintext to ciphertext.
  • Supports encryption, decryption, and analysis of strings and ASCII files.
  • Default Provider classes are supplied which contain implementations of Caesar, Simple Substitution (passphrase), Vigenere, Playfair, Affine, RailFence, and Transposition ciphers.
  • All Cipher objects are defined with a Key class which can accomodate a wide range of key types.
  • Supports a wide range of alphabets including: az, AZ, azAZ, azAZ09, printable ASCII and the full ASCII character set.

Project Activity

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License

GNU General Public License version 3.0 (GPLv3)

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User Reviews

  • The most invaluable part, the CryptoGram Analyzer, is just skeleton code (function/interface definitions) with no actual working code behind them.
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Additional Project Details

Intended Audience

Developers, Education

Programming Language

Java

Related Categories

Java Cryptography Software, Java Mathematics Software, Java Decryption Software

Registered

2009-10-22