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PlayfairCipher_codes
- Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2.one approach to improving security was to encrypt multiple letters 3.the Playfair Cipher is an example 4.invented by Charles Wheatstone in 1854
MD_SDK
- C++源码实现完整讯息摘要类别加解密方法,包函MD4 - both 128 bits and 256 bits, MD5, RIPEMD-128, RIPEMD-160, RIPEMD-256, RIPEMD-320, SHA-1, SHA-256, SHA -384, SHA-512, HAVAL SERIES及BASE 64-C++ source code to achieve a complete summary of categories of message encryption an
coder
- simple encryption project for my own algorithm. note: for arabic letters, but you can change letter from the data base.
Animated_C2123858182008
- Usually we see static Captcha, now we will make an imated Captcha. Now this cool. What does the captcha look like? It just like the ordinary Captcha, the difference is the letters are moving and animated. You can set your Captcha setting quickly suc
RSAjava
- RSA four letter encryption written in Java just set your public and private keys and with the public key it encrypts four letters into five letters then with the five letter and your private key you decrypt the message into the original four letters
shujujiami
- 数据单表多表加密解密 单表替换技术 多表替换技术 网络安全 单表替换技术明文字母 位置序号-Data encryption and decryption of single-table multi-table technology to replace single-table multi-table of network security technology to replace single-table position number replacement techniques plai
Encrypt
- 单字母加密，基于特征值，英语 语料库（词汇量7万左右）-Single letter encryption, based on the characteristic values of English corpus (vocabulary 70000 or so)
vigenere
- vigenere cipher with letter frequency
There-are-three-types-of-cryptography-techniques.
- Caesar cipher is a simple substitution cipher where each letter in the plain text is replaced with a letter a fixed number of places down the aplhabet. EXAMPLE If the number of places to shift is 3, the letter A would be converted to ltter D. Usi