密码学实验自己编的Playfair代码,感觉自己编的还不错,传上来与大家分享一下
上传时间: 2017-01-15
上传用户:shinesyh
Playfair加密,MFC编译成功
上传时间: 2014-01-16
上传用户:banyou
Playfair加密算法、解密算法的实现示例,用于英文字符
上传时间: 2017-03-02
上传用户:牧羊人8920
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,but named after his friend Baron Playfair Playfair Key Matrix 1.a 5X5 matrix of letters based on a keyword 2.fill in letters of keyword (sans duplicates) 3.fill rest of matrix with other letters Encrypting and Decrypting -plaintext is encrypted two letters at a time 1. if a pair is a repeated letter, insert filler like X’ 2. if both letters fall in the same row, replace each with letter to right (wrapping back to start from end) 3. if both letters fall in the same column, replace each with the letter below it (again wrapping to top from bottom) 4. otherwise each letter is replaced by the letter in the same row and in the column of the other letter of the pair
标签: monoalphabetic Playfair provides security
上传时间: 2017-05-24
上传用户:变形金刚
Playfair encryption
标签: encryption Playfair
上传时间: 2014-11-05
上传用户:plsee
Playfair cipher c++ program and source code
标签: Playfair program cipher source
上传时间: 2014-08-24
上传用户:zhuoying119
1、对于凯撒密文,实现了:1种盲目式搜索,4种启发式搜索,以及利用密钥实现的凯撒加密系统。 2、对于代入法密文,实现了:2种启发式搜索,1种利用密钥的代入法加密系统以及随机生成密钥的代入法加密系统。 3、字典工具,实现了对词库的增加,删除,检查等一系列的操作。 4、7种其他较为经典的加密方法的加密解密工具。包括:DES、Vigenere、IDEA、Keyword、LFSR、Playfair以及RC4等。
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上传时间: 2014-01-06
上传用户:chenxichenyue
Java实现传统算法加密解密,包括单表代换,Playfair,维吉尼亚算法。
上传时间: 2016-05-02
上传用户:kelimu
用VC++做的一个加密解密算法,包括凯萨密码、Vigenere密码、Playfair密码和置换密码,加密和解密都完全实现了
上传时间: 2014-01-01
上传用户:jeffery
包含仿射caser算法,Playfair算法,hill算法,vegenere算法的加解密程序。
上传时间: 2013-12-21
上传用户:er1219