symmetric encryption example

1, java version Package Com.lyz.utils.common; Import java.io.UnsupportedEncodingException; Import Java.security.MessageDigest; Import java.security.NoSuchAlgorithmException; /** * MD5 Encryption * @author Liuyazhuang/public class Md5hash {public static string Md5java (String message) { String digest = null; try {messagedigest MD = messagedigest.getinstance ("MD5"); Byte[] hash = md.digest (Message.getbytes ("UTF-8

Modify the example on MSDN so that it can be encrypted and decrypted through the RSA Certificate file. A small problem occurs in the middle. Q: When the ExportParameters () method is executed, return CryptographicException: This item is not suitable for use in the specified state (Key not valid for use in specified state ). A: When importing A certificate with A private key, you need to use"X509KeyStorageFlags"Parameter mark" private key can be export

Complete example of SHA-1 encryption algorithm implemented by JavaScript, javascriptsha-1 This example describes the SHA-1 encryption algorithm implemented by JavaScript. We will share this with you for your reference. The details are as follows: /**** Secure Hash Algorithm (SHA1)* http://www.webtoolkit.info/***/functi

This article brings the content is about the PHP code encryption decryption Class example (complete code), has certain reference value, has the need friend can refer to, hoped to be helpful to you. PHP code encryption class, you can modify according to their own needs, the original class as below, the instance under Ubuntu Test no problem.

Example Analysis of base64 encryption and decryption methods in python This document describes the base64 encryption and decryption methods in python. Share it with you for your reference. The specific analysis is as follows: I. base64 Base64 is a representation of binary data based on 64 printable characters. Because the power of 6 in 2 is equal to 64, every 6 b

Import java. Io. fileinputstream; Import java. Security. keystore;Import java. Security. privatekey;Import java. Security. publickey;Import java. Security. cert. Certificate;Import java. Security. cert. certificatefactory; Import javax. crypto. cipher; // Example of public key encryption and Private Key decryptionProgramPublic Class {Public static void main (string [] ARGs) throws exception { // P

ArticleDirectory Parameters Return Value Remarks A good example on msdn: there is a problem in the sentence of clearing the password from memory. Let's take a look at how this problem is solved. Cannot convert from sytem. inptr to ref string Take the following sentence Public static extern bool zeromemory (ref string destination, int length ); Use this sentence to replace it. Internal static extern void zeromemory (i

This article mainly introduces the use of OpenSSL to implement RSA asymmetric encryption algorithm example, we refer to the use of the bar nbsp; Code as follows: ; nbsp; nbsp; need to be aware that Apache supports OpenSSL nbsp;

An example of the principle of encryption and decryption Package lockunlock; Import java.awt.*; Import java.awt.event.*; Import java. applet.*; Import javax. swing.*; Import java.util.*; public class Lockunlock extends JApplet { Private Boolean isstandalone = false; Get a parameter value public string GetParameter (string key, String def) { Return Isstandalone? System.getproperty (Key, Def): (GetParameter

This is a creation in Article, where the information may have evolved or changed. An example of AES encryption. For members ' reference. packagemainimport ( "Crypto/aes" "Crypto/cipher" "FMT") Funcmain () {aesenc:=aesencrypt{} arrencrypt,err:=aesenc.encrypt ("ABCDE") if err!=nil{fmt. Println (Arrencrypt) return} strmsg,err:=aesenc.decrypt (Arrencrypt) iferr! =nil{fmt. Println (Arrencrypt) return} fmt. Pr

This example describes the Base64 encryption and decryption method in Python. Share to everyone for your reference. The specific analysis is as follows: First, base64 Base64 is a representation that represents binary data based on 64 printable characters. Because 2 of the 6 times equals 64, each 6 bit is a unit, corresponding to a printable character. Three bytes have 24 bits, corresponding to 4 Base64 un

This example describes the SHA-1 encryption algorithm implemented by JavaScript. Share to everyone for your reference, specific as follows: /** * Secure Hash algorithm (SHA1) * http://www.webtoolkit.info/* **/function SHA1 (msg) {function rotate_left (n,s ) {var T4 = (n More readers interested in JavaScript-related content can view this site: "JavaScript data structure and algorithm skills summary"