zhihuanjiami
所属分类:加密解密
开发工具:Visual C++
文件大小:1KB
下载次数:8
上传日期:2011-07-08 15:57:58
上 传 者:
bingmeng2014
说明: 置换密码亦称换位密码。置换只不过是一个简单的换位。每个置换都可以用一个置换矩阵 来表示。每个置换都有一个与之对应的逆置换 。置换密码的特点是仅有一个发送方和接收方知道的加密置换(用于加密)和对应的逆置换(用于解密)。它是对明文 长字母组中的字母位置进行重新排列,而每个字母本身并不改变。
(Password replacement, also known as transposition cipher. Replacement is just a simple transposition. Each permutation can be represented by a permutation matrix. Each exchange has a corresponding inverse permutation. Replacement of the password feature is only one sender and receiver know the encryption permutation (for encryption) and the corresponding inverse permutation (for decryption). It is a long letter of the plaintext letters in the group re-arranged location, and each letter in itself does not change.)
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zhihuanjiami.txt (2281, 2009-10-21)
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