Open Source Java Cryptography Software for Linux

This program is an offline and stand-alone Java application which simulates the Enigma encryption machine that was used during World War II.

Crypt-EG is an easy visual cryptosystem program that implements ElGamal method using elliptic curves.

CryptoHelper is a Java program designed to aid in the decryption of classical ciphers, ie pre WWII ciphers. It brings together tools like frequency analysis, friedman tests, enciphering/deciphering for several clasical ciphers, and brute force algorithm

CryptoDock is free multi-platform application written in Java that hosts various hash and modern cryptographic algorithms you can use to protect your sensitive data on your computer. Available cryptographic algorithms: 1. NLSE-1 2. One Time Pad 3. AES Available hashing algorithms: 1. MD5 2. SHA-1 3. SHA-256 4. SHA-512 IMPORTANT: In order to run CryptoDock you need to have Java installed on your computer. Java is free and can be downloaded from - http://www.java.com/

FroZenLight connects simple line art and mathematics. The source of light can be positioned so that either symmetric reflection patterns or secret messages (Cryptography) are created. Example light patterns and math exercises for education are provided.

Ganzúa is a cryptanalysis tool for classical ciphers (mono and polyalphabetic) that lets the user define almost completely arbitrary cipher and plain alphabets, allowing for the proper cryptanalysis of cryptograms obtained from non-English texts.

GiANT is a graphical interface for computer algebra systems (OS X/UNIX/Win). Currently GiANT lets the user work with number fields via KASH, but we aim to develop it into a GUI Library to run on top of any CAS and expose any of its functions.

Java Chaotic Random Number Generator - Inspired by chaos theory, the intent of this generator is to produce unseeded, unpredictable numbers. The numbers will not follow a predictable sequence and will not rely on a pseudorandom algorithm.

Java Randomness Test Suite is a gui application to run randomness tests on random stream resource (file or algorithm). Application can be run in command line. Includes general statistical tests, NIST and DIEHARD tests.

The Latin Square Toolbox contains software tools for efficiently generating Latin squares and counting their transversals with various user-configurable options. This open source release aims to help educate folks on Latin squares and their important applications to cryptography. This version contains three tools: 0. Latin Square Generator (LSG) 1. Latin Square Transversal Counter (LSTC) 2. Latin Square Property Checker (LSPC)

Our idea is to deploy a society of computational agents that collaborate in order to achieve the shared goal of decrypting a chunk of ciphertext or recovering a password from an hash by means of a dictionary-based attack.

Provides efficient, effective implementations of 32- and 64-bit hash functions based on Rabin fingerprints / irreducible polynomials, in Java. Also provides integration with java.security.MessageDigest API.

Quantitative information engineering systems.

<b>SicHer</b> is an encryption client that will allow secure chat across the internet using AES and a Diffe-Hellman key exchange.

compare time of process between rsa and elgamal algorithm used to encryption and digital signature.

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.