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Description: 关于网络信息密码学的加密和解密算法,包括DES,LFSR,CAESER,IDEA,RC4,KEYWORD,VIGENERE,PLAYFAIR-information on the network cryptography encryption and decryption algorithms including DES, LFSR, CAESER. IDEA, RC4, somewhat, VIGENERE, PLAYFAIR
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Size: 578560 |
Author: 王福财 |
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Description: 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 -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
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Size: 133120 |
Author: 黃文岩 |
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Description: playfair cipher c++ program and source code
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Size: 31744 |
Author: behzad k |
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Description: 用模擬退火法求解Playfair加密法的程序，計算速度比暴力法好多了，檔案內破解用的範例就是碼書(The Code Book)的第六階的密碼，剛好就是用Playfair加密的，可以參考。-Playfair fixed Temperature Simulated Annealing with flips by Michael J. Cowan
Run with file cipher1.txt containing cipher and TetraLog_hank.bin containing log tetragraphs in same folder as program
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Size: 188416 |
Author: sudolai |
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Description: product cipher(combination of playfair cipher and rail fence cipher)
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Size: 1024 |
Author: shrinivas |
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Description: C program to cipher and decipher playfair
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Size: 1024 |
Author: rakeshmatam |
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Description: //Implementation of Playfair cipher decrypter
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Size: 1024 |
Author: Maddy |
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Description: playfair cipher. the website for encrypt and decrypt the message
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Size: 318464 |
Author: rean |
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Description: 基于C++Builder环境下的Playfair Cipher加密及解密源代码-Based on C++ Builder environment Playfair Cipher encryption and decryption source code
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Size: 394240 |
Author: 邵兴荣 |
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Description: this the source code to implement play fair cipher -this is the source code to implement play fair cipher ................
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Size: 1024 |
Author: Saurabh Niranjan |
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Description: playfair cipher program in c language
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Size: 1024 |
Author: Ankitsri06 |
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Description: java实现的Playfair密码算法，可以实现加密和解密功能-java implementation of the Playfair cipher, encryption and decryption functions can be achieved
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Size: 2048 |
Author: 李国华 |
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Description: 计算机网络安全技术实验，密码算法的实现，实现密码算法（Playfair密码算法，DES算法， RSA算法）-Computer network security technology experiment, the realization of cryptographic algorithms to achieve encryption algorithm (Playfair cipher, DES algorithm, RSA algorithm)
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Size: 751616 |
Author: 王寒蕊 |
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Description: Playfair密码（英文：Playfair cipher 或 Playfair square）是一种替换密码，1854年由查尔斯• 惠斯通（Charles Wheatstone）的英国人发明。-Playfair password (English: Playfair cipher or Playfair square) is a substitution cipher, invented in 1854 by Englishman Charles Wheatstone (Charles Wheatstone).
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Size: 2048 |
Author: 林言琼 |
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Description: This Document gives the algorithm and detail steps of Playfair cipher and how to solve the problem related it.
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Size: 30720 |
Author: deepa |
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Description: Implementation of Playfair Cipher in C
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Size: 11264 |
Author: |
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Description: Playfair cipher implementation in c#
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Size: 1024 |
Author: pranav21 |
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Description: play fair cipher algorithm implementation using java
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Size: 8192 |
Author: saif ullah |
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Description: to implement playfair cipher technique.
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Size: 1024 |
Author: phyber |
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Description: Hill Ciphers, Affine cipher and Playfair Cipher
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Size: 354304 |
Author: maiso |
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