rc4 decryption tool

arbitrarily defined: char key[256]; parameter 3 is the length of the key, Len = strlen (key), void Rc4_init (unsigned char *s, unsigned char *key, unsigned long Len) {int I =0, j = 0, k[256] = {0};uns igned char tmp = 0;for (i=0;iVulnerabilityBecause the RC4 algorithm encryption is the XOR, so, once the sub-key sequence has been duplicated, ciphertext can be cracked. For more information on how to hack XOR encryption, please see the 1.4 Simple XOR in

in the future. In fact, no effective attack method for the RC4 encryption algorithm for 128bit key length is found today　/* $PWD secret key;$data the data to encrypt*/Public function RC4 ($PWD, $data){ $cipher = "; $key [] = ""; $box [] = ""; $pwd _length = strlen ($PWD); $data _length = strlen ($data); for ($i = 0; $i $key [$i] = Ord ($pwd [$i% $pwd _length]);

On the internet to find a lot of RC4 and decryption, OC write encryption is mainly http://www.cocoachina.com/bbs/read.php?tid-77608.html this article. After I used, and our PHP can not correspond, he encrypted after I decrypt the wrong, I encrypt his decryption is not right. So, I wrote it myself again.1. First, download a OpenSSL library and put the library on t

C # rc4 algorithm, encryption and decryption class, The rc4 algorithm, in principle, uses a key to generate a 256-bit key stream, and then rolls the source data through an exclusive or encrypted wheel. 1/* 2 * created by SharpDevelop. 3 * User: YISH 4 * Date: 04/04/2015 5 * Time: 6*7 * Click Tools to change this template | options | code writing | edit standard h

C # rc4 algorithm, encryption and decryption class, Rc4 .. 1/* 2 * created by SharpDevelop. 3 * User: YISH 4 * Date: 04/04/2015 5 * Time: 6*7 * Click Tools to change this template | options | code writing | edit standard header file 8 */9 using System; 10 11 namespace Libraries 12 {13 //

Package com.*;p Ublic class RC4 {public static string DECRY_RC4 (byte[] data, string key) {if (data = = NULL | | key = NULL) {return null;} Return asstring (rc4base (data, key));} public static string DECRY_RC4 (string data, string key) {if (data = = NULL | | key = = NULL) {return null;} return new String (Rc4base (hexstring2bytes (data), key));} public static byte[] Encry_rc4_byte (string data, string key) {if (data = = NULL | | key = = NULL) {return

[] Decryptbyte (byte[] data) { the returnencryptbyte (data); the } - the //is the collection complete ? the BOOL_disposed; the Public voidDispose ()94 { theDispose (true); theGc. SuppressFinalize ( This); the }98~Rc4crypt () About { -Dispose (false);101 }102 //The parameters here indicate whether the managed objects that implement the IDisposable interface need to be freed103 protected Virtual voidDispo

First download the PHP God Shield decryption tool decryptionThen unzip it into a folder and put the file you want to decrypt.Then create a new decode.php code to write: Copy Code code as follows: Require (' decryption.php '); Decryption (' code.php '); ?> After the execution will generate code_source.php source files. Effect At present,

Tutorial on how to encrypt and decrypt data by using the PHP Security decryption tool. Download the decryption tool of php shield and decompress it to a folder to include the files you want to decrypt. Create a New decode. php code to write: Copy the code to download the decryption