symmetric encryption example

the private key contains the public key $data = file_get_contents ($data _file);echo "PlainText data is: $crypted _data = null; Ciphertextif (Openssl_private_encrypt ($data, $crypted _data, $private _key)) {echo "The following is the secret key encrypted ciphertext:} else {echo "Cryptographic failure:while ($msg = openssl_error_string ()) {Echo $msg. "}}$decrypted _data = null; Encrypted plaintext after restoreif (Openssl_public_decrypt ($crypted _data, $decrypted _data, $public _key)) {echo "B

Example of a php symmetric encryption algorithm. The php symmetric encryption algorithm KEY is a previously defined constant copy code. the code is as follows: Mcrypt: encrypt (); Mcrypt: decrypt (); the copy code is as follows: defined (ROOT) orexit (AccessDenie php

This article mainly introduces the example of the php symmetric encryption algorithm. For more information, see This article mainly introduces the example of the php symmetric encryption algorithm. For more information, see

This article mainly introduces the php symmetric encryption algorithm example. if you need a friend, refer to the php symmetric encryption algorithm. KEY is a previously defined constant. The code is as follows: Mcrypt: encrypt ();Mcrypt: decrypt (); The code is as foll

Example of a php symmetric encryption algorithm. Share The php symmetric encryption algorithm implementation code. KEY is the previously defined constant Mcrypt: (ROOT) or (AccessDeniedencrypt (mcrypt_encrypt (MCRYPT_RIJNDAEL_256, (), MCRYPT_M shares the php

PHP Symmetric encryption algorithm KEY is the previously defined constant Copy Code code as follows: Mcrypt::encrypt (); Mcrypt::d ecrypt (); Copy Code code as follows: Defined (' ROOT ') or exit (' Access Denied '); Class mcrypt{public static function Encrypt ($code) {Return Base64_encode (Mcrypt_encrypt (mcrypt_rijndael_256, MD5 (KEY), $code, MCRYPT_MODE_EC

Encryption using System; Using System.Drawing; Using System.Collections; Using System.ComponentModel; Using System.Windows.Forms; Using System.Data; Using System.Security.Cryptography; Using System.IO; namespace symmetric encryption Application { /// Summary description of the Form1. /// public class Form1:System.Windows.Forms.Form { Private System.Windows.Forms

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Using System; Using System. Security. cryptography; Using System. text; Using System. IO; /// /// Example of Using symmetric encryption /// Class Class1{ Static Void Main ( String [] ARGs){Class1 C = New Class1 ();C. startdemo ()

The main consists of 3 files:1. Cryptotest.h:#ifndef _cryptotest_h_#define _cryptotest_h_#include 2. Destest.cpp:#include 3. Main.cpp:#include "stdafx.h" #include "cryptotest.h" #include Example of use of symmetric encryption algorithm des common functions in OpenSSL

Encryption Using System;Using System.Drawing;Using System.Collections;Using System.ComponentModel;Using System.Windows.Forms;Using System.Data;Using System.Security.Cryptography;Using System.IO; A summary description of the namespace symmetric encryption application { /// ///Form1. /// public class Form1:System.Windows.Forms.Form { Private System.Windows.For

Http://www.divcss.org/Article/Jsp/c/200608/19135.html Using system;Using system. drawing;Using system. collections;Using system. componentmodel;Using system. Windows. forms;Using system. Data;Using system. Security. cryptography;Using system. IO; Namespace symmetric encryption application{////// Summary of form1.///Public class form1: system. Windows. Forms. Form{Private system. Windows. Forms. textbox text

Share the implementation code for the PHP symmetric encryption algorithm. KEY is a previously defined constant Mcrypt::::(' ROOT ') or (' Access Denied ' Encrypt ( (Mcrypt_encrypt (mcrypt_rijndael_256, (), , MCRYPT_ MODE_ECB, Mcrypt_create_iv (Mcrypt_get_iv_size (mcrypt_rijndael_256, MCRYPT_MODE_ECB), Decrypt (

Share the php symmetric encryption algorithm implementation code. KEY is a previously defined constant. Mcrypt::::('ROOT') or ('Access Denied' encrypt( (mcrypt_encrypt(MCRYPT_RIJNDAEL_256, (), , MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), decrypt( mcrypt_decrypt(MCRYPT_RIJNDAEL_256, (), (), MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDA

implement the Clea method. When invoked, the clear method overwrites all sensitive data within the object with 0, and then releases the object so that it can be safely reclaimed by the garbage collector. When the object has been cleared 0 and released, the Dispose method should be called and the disposing parameter set to True to free all managed and unmanaged resources associated with the object. 2. AES Class The AES class is an abstract class, and all implementations of the Advanced

Symmetric encryption (1) Basic principles of symmetric encryption (1) Basic principles of symmetric encryption Symmetric encryption is the

The classical symmetric encryption algorithm is DES algorithm, and then derives the enhanced des algorithm of 3DES, TripleDES and so on. Moreover,. NET also provides symmetric encryption algorithms such as RC2, Rijndael, and so on. The details are detailed below. DES encryption