des encryption example

I have not found any good DES encryption code for a long time. It is no wonder that a blogger said that he had not found himself for a long time. Http://www.iteye.com/topic/422575 But it seems that he said that the encrypted plaintext will go wrong, so I did not dare to try it out. In addition, I downloaded one from Tiandi, and found that the function was still possible. It seems that I switched the js vers

_key=md5 ($encrypt _key); $ctr = 0; $tmp = '; for ($i =0; $i $ctr = $ctr ==strlen ($encrypt _key) 0: $ctr; $tmp. = $str [$i] ^ $encrypt _key[$ctr + +]; } return $tmp; } Use the following exampleThe code is as follows: $str = ' Author: www.jb51.net '; $key = ' 123456 '; $encrypt =passport_encrypt ($str, $key); $decrypt =passport_decrypt ($encrypt, $key); Echo ' original: ', $str. ' Echo ' redaction: ', $encrypt. ' echo ' translation: ', $decrypt. '

Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Using System; Using System. Data; Using System. configuration; Using System. LINQ; Using System. Web; Using System. Web. Security; Using System. Web. UI; Using System. Web. UI. htmlcontrols; Using System. Web. UI. webcontrols; Using System. Web. UI. webcontrols. webparts; Using System. xml. LINQ; Using System. text; Using System. IO; Using System. Security. cryptogra

[Android development experience] a safer algorithm than DES encryption-3DES encryption algorithm, android3des Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 In the previous article, we discussed the DES algorithm and learned how to ensure the consistency of

Using system; Using system. IO; Using system. Windows. forms; Using system. Collections. Generic; Using system. text; Using system. Security. cryptography; Namespace mydes{/// /// DES encryption/decryption and MD5 Encryption/// Public class my_des{# Region private attributes /// /// MD5 encrypted string/// Private string md5str = NULL;/// ///

Introduction to des algorithm Description:Des is the abbreviation for the data Encryption standard. It is a cryptographic algorithm developed by IBM, the United States National Standards Bureau published in 1977 to use it as a non-confidential department of Data encryption standards; It is a packet encryption algorithm

= null;/// /// Prompt message/// Private string noteMessage = null;# Endregion# Region Public attributes/// /// Input string/// Public string InputString{Get {return inputString ;}Set {inputString = value ;}}/// /// Output string/// Public string OutString{Get {return outString ;}Set {outString = value ;}}/// /// Input file path/// Public string InputFilePath{Get {return inputFilePath ;}Set {inputFilePath = value ;}}/// /// Output file path/// Public string OutFilePath{Get {return outFilePath ;

:" + encrypt);Base64 Plus decryptionEncrypt = Encodehelper.base64encrypt (original);Console.WriteLine ("Encodehelper.base64encrypt" + Encrypt);Decrypt = Encodehelper.base64encrypt (encrypt);Console.WriteLine ("Encodehelper.base64encrypt" + decrypt);Encrypt = Encodehelper.aes_encrypt (original);Console.WriteLine ("Encodehelper.aes_encrypt" + Encrypt);Decrypt = Encodehelper.aes_decrypt (encrypt);Console.WriteLine ("Encodehelper.aes_decrypt" + Decrypt);、、、、、Des