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Tôi đang gặp vấn đề liên quan đến Encryption.Decryption sử dụng thuật toán mã hóa DES

Mình đang gặp khó khăn phần tạo key cho giải thuật mã hóa sử dụng DES. Minh cần source code C, bạn nào có mong cho mình tham khảo. Làm ơn gửi vào địa chỉ sau giúp mình: vuquangbk0612@gmail.com...
  Crypt_Decrypt algrithms        C     

idea algorithm in Python

   idea.c - C source code for idea block cipher.    idea (International Data Encryption Algorithm), formerly known as     IPES (Improved Proposed Encryption Standard).    Algorithm developed by Xuejia Lai and James L. Massey, of ETH Zurich.     T...
  Algorithm        Python     

International Data Encryption Algorithm

This code shows how to implement the idea cipher in Java. In cryptography, the International Data Encryption Algorithm (idea), is a symmetric-key block cipher designed by James Massey of ETH Zurich andXuejia Lai and was first...
  Java Development        Java     

Image Encryption based on the RGB PIXEL Transposition and Shuffling

Abstract — Privacy is one of the key issues information Security addresses. Through Encryption one can prevent a third party from understanding raw data during signal transmission. The Encryption methods for enhancing the security of digital contents has gained high significance in the current era...
  Image Processing        Matlab     

Java database Encryption and decryption

Data Encryption The basic process is as a plain text file or data in some sort of 算法 For processing, making it unreadable for a piece of code, often referred to as "cipher text", so that they can only enter the appropriate 密钥 Later may not display the content through such means to achieve th...
  IT 界面        Java     

euclidean & Mahalanobis distance classification

a small function for euclidean distance classification and the Mahalanobis distance...
  Matlab        Matlab     

AES image Encryption in MATLAB

this code can encrypt & decryption image with AES algorithm some image code for image compressing & image Encryption 1 - AES coding for image with MATLAB 2- c++ aes Encryption 3- DCT_Compress in matlab 4- DWT image compressing with matlab 5-...
  Image Processing        Matlab     

Data Encryption Standard

this is  source codes of DES, MD5 and RSA i wish you enjoy with this code and its helpful for all this is contain a library for most Encryption algorithm ...
  Crypt_Decrypt algrithms        C++     

RSA crypt library RSA Encryption and decryption library

RSA Encryption library, relevant examples. Des,AES,RSA commonly used Encryption algorithm...
  Algorithm        C     

Encryption and re-Encryption by Hill method

Method of Hill, This is an Encryption method that uses square matrices. We believe this is an attractive way for students to learn matrix algebra, arithmetic modulo n and the concept of algorithm. Background Hill Encryption  The letters are first replaced by their rank in...
  Algorithm        C#     

c# rsa algorithm Encryption/decryption

the RSA Encryption and decryption C# implementation public & private keys are predefined. browse a file to encrypt or decrypt....
  Algorithm        C#     

idea in VHDL

This Code contains very interesting implementation of idea Cryptography  using VHDL using Xilinx tools ! hope you can customize and use the job for your own personal use ! Stay Connected and feel relax to ask questions ...
  vhdl      VHDL     

simple chat code with md5 Encryption

simple chat code with md5 Encryption in c# simple chat code with md5 Encryption in c# simple chat code with md5 Encryption in c# simple chat code with md5 Encryption in c# simple chat code with md5 Encryption in c# simple chat code with md5 Encryption in c# simple...
  chat        C#     

simultaneous data compression and Encryption

SIMULTANEOUS DATA COMPRESSION,Encryption AND DECRYPTION                                        &nbs...
  Windows        Java     

AN Encryption ALGORITHM TO SECURELY TRANSMIT MESSAGES AND LOCALIZATION OF SYBIL ATTACKS IN VANETS

PHASE I: PROPOSED SCHEME: The secure car is considered a mobile entity that exchanges messages with other traffic participants, but also with the existing infrastructure (i.e. secure traffic lights). The purpose of the protocol is to provide a solution to secure messages between...
  NS 2      Tcl/Tk     

RSA Encryption

RSA is an algorithm for public-key cryptography that is based on the presumed difficulty of factoring large integers, the factoring problem. RSA stands for Ron Rivest, Adi Shamir and Leonard Adleman, who first publicly described the algorit...
  Matlab        Matlab     

DES Encryption and decryption algorithm

Algorithm processes 1. replacement of the binary string to be processed for IP 2. will PC1 replacement key (64-bit to 56-bit), 3. held 16 rounds of operations, for I round operation: 1) received by the an on PC1 key (first level dropped out, others are shifted) result of left and right par...
  Crypt_Decrypt algrithms        C     

Advanced Encryption Standard

AES (Advanced Encryption Standard) is a standard Encryption algorithm. It uses sub bytes transformation, polynomial multiplication, etc. whose definitions are customized for Encryption. Please refer the verilog code attached. Open it through Xilinx ISE 12....
  verilog      Verilog     

Message Encryption using symmetric key Encryption

Suppose Bob has an RSA public key system with public key: n = 468833, b = 643. Now you need to send some message (which only includes English letters, space, comma, dot and question marks) to Bob securely. A symmetric key Encryption function used by Bob is: eK(x) = x  K where K is...
  Crypt_Decrypt algrithms        Java     

AES 256 Encryption engine, 4 input pipeline

this code is one diffrent implementation of AES-256. this code encrypt 4 different input data 128 bit with 4 different key 256 bit for each data all Encryption data generate after 67 clock cycle we implement this engine of Xilinx Virtex 4 xc4vlx25 FPGA the result shown in bel...
  Embeded      Verilog     

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