Base64 demonstrates how easy it is to decipher plaintext usernames and passwords. Never login to a public network resource unless some type of encryption is being used, secure socket layer is one example. Most FTP sites also use plaintext passwords.
標簽： demonstrates plaintext passwords usernames
上傳時間： 2013-12-04
上傳用戶：aeiouetla
This code is a cipher which takes in a plaintext or ciphertext string and encrypts / decrypts according to a user defined key value.
標簽： ciphertext plaintext encrypts decrypts
上傳時間： 2014-01-05
上傳用戶：181992417
AlgorithmType: SymmetricCipher Name: AES/ECB Source: NIST Special Publication 800-38A plaintext: 6bc1bee22e409f96e93d7e117393172a ae2d8a571e03ac9c9eb76fac45af8e51 30c81c46a35ce411e5fbc1191a0a52ef f69f2445df4f9b17ad2b417be66c3710 Comment: F.1.1 ECB-AES128.Encrypt Key: 2b7e151628aed2a6abf7158809cf4f3c Ciphertext: 3ad77bb40d7a3660a89ecaf32466ef97 f5d3d58503b9699de785895a96fdbaaf 43b1cd7f598ece23881b00e3ed030688 7b0c785e27e8ad3f8223207104725dd4 Test: Encrypt Comment: F.1.3 ECB-AES192.Encrypt Key: 8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b Ciphertext: bd334f1d6e45f25ff712a214571fa5cc 974104846d0ad3ad7734ecb3ecee4eef ef7afd2270e2e60adce0ba2face6444e 9a4b41ba738d6c72fb16691603c18e0e Test: Encrypt Comment: F.1.5 ECB-AES256.Encrypt Key: 603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4 Ciphertext: f3eed1bdb5d2a03c064b5a7e3db181f8 591ccb10d410ed26dc5ba74a31362870 b6ed21b99ca6f4f9f153e7b1beafed1d 23304b7a39f9f3ff067d8d8f9e24ecc7 Test: Encrypt
標簽： SymmetricCipher AlgorithmType Publication plaintext
上傳時間： 2013-12-17
上傳用戶：teddysha
RC5－CTS模式加密解密算法C++程序實現。 解壓之后運行main.dsw.在VC++下面打開，執行之后根據顯示首先輸入密鑰（隨便輸入不超過16字節的字符串），之后提示輸入需要加密的plaintext文件,輸入plaintext1.txt，這個文件在壓縮包里已經存在，(注意一定要寫清楚文件類型名，是個文本文件)，然后根據提示輸入加密文件名，可隨便輸入一個文件名，但是別忘記了類型名.txt，如ciphertext1.txt。因為不輸入類型名將來無法打開。之后輸入解密之后的文件名，可輸入decrypted.txt 結束。 之后打開生成的ciphertext1.txt和decrypted.txt，還有原來的明文文件plaintext1.txt,可以看出decrypted.txt和plaintext1.txt內容一致。ciphertext1.txt由plaintext1.txt加密得到，而decrypted.txt由ciphertext1.txt解密得到
上傳時間： 2013-12-20
上傳用戶：小鵬
The file is substitution cipher assistant.It Will display the ciphertext underneath the guessed plaintext.
標簽： substitution ciphertext underneath assistant
上傳時間： 2014-11-29
上傳用戶：從此走出陰霾
Program for implementing AES on 8051 based microcontrollers. SDCC is used as the C compiler. Microcontroller used is P89V51RD2. There are 2 programs included. One program will accept string via UART and accept key via a 4x4 keypad and display decrypted text on 16x2 LCD. The other program will accept plaintext from UART and show encrypted text on 16x2 LCD after receiving key from 4x4 membrane keypad. Schematics and screenshots are included.
標簽： microcontrollers implementing compiler Program
上傳時間： 2017-04-07
上傳用戶：wanghui2438
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
標簽： monoalphabetic Playfair provides security
上傳時間： 2017-05-25
上傳用戶：變形金剛
