des encryption example

1. Who can use php to implement des encryption and decryption with detailed explanation of each step 1. Who can use php to implement des encryption and decryption and complete detailed explanation of each step Reply content: 1. Who can use php to implement des

= new Byte[len];for (int i = 0 ; i DES encryption algorithmImport Java.io.unsupportedencodingexception;import Java.security.key;import Java.util.locale;import Javax.crypto.cipher;import Javax.crypto.secretkeyfactory;import Javax.crypto.spec.desedekeyspec;import javax.crypto.spec.ivparameterspec;/** * DES encryption *

There is an extension in php that supports the DES encryption algorithm: extension = php_mcrypt.dll Opening the extension in the configuration file cannot be used in windows. You need to copy libmcrypt. dll in the PHP folder to the system32 directory of the system. Through phpinfo, you can see that mcrypt indicates that this module can be used properly. The following is an

and other important information, the encryption work is very good; according to the data learned that is probably the case: the client to send the message, first using AES encryption , on this basis Then use RAS encryption , so that only the first crack RAS encryption, and then crack AES

Recently, there is a new project to do with Java, the old project is ASP, interface transmission needs des plus decryption, online search of some information, most can not be used, after debugging and processing, the specific code is as follows:The key must be 8 bits. The corresponding Java method is as follows:Package com.testspring;Import Javax.crypto.Cipher;Import Javax.crypto.SecretKey;Import Javax.crypto.SecretKeyFactory;Import Javax.crypt

In the Web site using cookies or storing data in the database often use encryption and decryption, MD5 very useful, but sometimes need to inverse. Then the DES symmetric encryption is more useful. Set a key, and then encrypt all the data. Code introduction as follows, the prior declaration only for the younger brother personal understanding, please advise Imports

This paper introduces the simple implementation of DES encryption and decryption method in PHP. Share to everyone for your reference, as follows: DES encryption: function Des_encrypt ($STR, $key) { $block = mcrypt_get_block_size (' des ', ' ECB '); $pad = $block-(strlen

This article mainly introduces the implementation of PHP and C # consistent DES Encryption and decryption method, interested in the friend's reference, I hope to help you. Note: The length of the key is within 8 bits. C # version des plus decryption algorithm using System; Using System.Data; Using System.Configuration; Using System.Web; Using System.Web

Import Java.security.*;import Javax.crypto.cipher;import Javax.crypto.secretkey;import Javax.crypto.secretkeyfactory;import javax.crypto.spec.deskeyspec;/** * Copyright GuangZhou Cotel Co., Ltd. * All rig HT reserved. * DES encryption and decryption classes. * @author Des encryption and Decryption class-java

Des encryption and decryption algorithm//affine transform plus decrypt. cpp: The entry point that defines the console application. //#include #include Static Charkey[Ten], key_a[5], code[8], key_b[5], temp[Ten], key_aa[8], key_bb[8], l[4], r[4], l_a[4], r_a[4], v[8] = {0,1,0,1,0,1,0,1}, b[8];CharCode, ccode[ -];intp_a[Ten] = {3,5,2,7,4,Ten,1,9,8,6};intp_b[8] = {6,3,7,4,8,5,Ten,9};ints_a[4][4] = {1,0,2,3,3,2

Import Java. security. key; import Java. security. security; import javax. crypto. cipher;/***** des Reversible Encryption Algorithm version 1.0 */public class desencrypt {Private Static string strdefaultkey = "wuguowei"; private cipher encryptcipher = NULL; private cipher decryptcipher = NULL; public static void main (string [] ARGs) throws exception {desencrypt currtest = new desencrypt (); string spasswo

This example describes the DES encryption and decryption instance implemented by PHP. Share to everyone for your reference, specific as follows: More interested in PHP related content readers can view the site topics: "PHP Encryption Method Summary", "PHP operation and operator Usage Summary", "PHP Network Pr

/*** @ (#) Eryptogram. Java 1.00 04/03/11** Copyright (c) 2003-2004 abacus, Ltd.** Encryption and decryption****/Package cn.com. sinosoft. SMP. util; Import javax. crypto. cipher;Import javax. crypto. keygenerator;Import javax. crypto. secretkey;Import javax. servlet. http. httpservletrequest; Import com. uncnet. Framework. utils. permission; /*** Encryption and decryption */Public class eryptogram {Private

Base64.javaPackage com.mstf.des; Import java.io.UnsupportedEncodingException; /** * Base64 encode/decode * @author Ceet * */public class Base64 {public static string encode (string data) {return new string (ENC Ode (Data.getbytes ()));} public static string decode (string data) {try {return new string (Decode (Data.tochararray ()), "Utf-8");} catch ( Unsupportedencodingexception e) {e.printstacktrace (); return null;}} private static char[] alphabet = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopq

This paper describes the implementation method of Python encryption and decryption based on DES algorithm. Share to everyone for your reference. The implementation method is as follows: #coding =utf-8 from functools import partial Import Base64 Class des (object): "" "DES encrypti