this is an app witch crypt and decrypt messages with Vigenere's method

Optimized for progressive key

Buscador-traductor-encriptador

A working Vigenere algorithm implemented in Java. Can encrypt and decrypt using a key.

Method of encrypting alphabetic text by using a series of interwoven Caesar ciphers based on the letters of a keyword. Though the 'chiffre indéchiffrable' is easy to understand and implement, for three centuries it resisted all attempts to break it.

Collection of Classical Ciphers

A program which performs a frequency analysis on a sample of English text and attempts a cipher-attack on polyalphabetic substitution ciphers using 2 famous methods - Kasiski's and Friedman's.

Polyalphabetic cipher (classic cipher) implemented in java

Encryption Algorithms : -Caesar -Rail Fence Cipher -Columnar -Polybius -Tomy -Vigenere

Java version of the Vigenère cipher (created in 1553), now breakable (since 1863)

The VigènereAnalyzer is a help tool used to find the length of the encryption key.

A Java class for working with Vigenere ciphers and related/derived cryptographic algorithms.

chiffrement et déchiffrement de vigenere en utilisant java

Image Steganography by the book