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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
BASE64
- BASE64解码 VBS源代码 Function fDecode(sStringToDecode) Const CharList = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" Dim iDataLength, sOutputString, iGroupInitialCharacter sStringToDecode = Replace(Replace(Replace(sSt
AES_Code
- 密码学中的高级加密标准（Advanced Encryption Standard，AES），又称Rijndael加密法，是美国联邦政府采用的一种区块加密标准。这个标准用来替代原先的DES，已经被多方分析且广为全世界所使用。-Cryptography Advanced Encryption Standard (Advanced Encryption Standard, AES), also known as Rijndael encryption method, a block encryptio
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
diffeehellmanPROGRAM
- Example 1. To find 1537 x 4248 modulo 10, you could multiply out and take the last digit, but a better way would be to replace 1537 by 7 and 4248 by 8 to start, find 7 x 8 = 56, and then take 56 mod 10 to get 6 as the answer. A handy standard no
RC4-Prog
- Example 1. To find 1537 x 4248 modulo 10, you could multiply out and take the last digit, but a better way would be to replace 1537 by 7 and 4248 by 8 to start, find 7 x 8 = 56, and then take 56 mod 10 to get 6 as the answer. A handy standard no
Substitution
- 无序替换加密，通过词频确定密钥，python代码。-Disorderly replace encryption by determining the key word frequency, python code.