ironport encryption

The encryption algorithm is as follows: Copy Code code as follows: function Encrypt ($data, $key) { $key = MD5 ($key); $x = 0; $len = strlen ($data); $l = strlen ($key); for ($i = 0; $i { if ($x = = $l) { $x = 0; } $char. = $key {$x}; $x + +; } for ($i = 0; $i { $str. = Chr (Ord ($data {$i}) + (Ord ($char {$i}))% 256); } Return Base64_encode ($STR); } The decryption algorithm is as follows: Copy Code code as fol

AES encryption and decryption algorithm, using BASE64 to do transcoding and auxiliary encryption: package Com.wintv.common;Import Javax.crypto.Cipher;Import Javax.crypto.spec.IvParameterSpec;Import Javax.crypto.spec.SecretKeySpec;Import Sun.misc.BASE64Decoder;Import Sun.misc.BASE64Encoder;/** ****************************************************************************** AES Plus decryption algorithm** @auth

Encryption | data | algorithm using C # Data encryption (i)--Symmetric encryption algorithm The following is about the symmetric encryption algorithm of C # implementation code, you can change the different algorithm according to the need, the article takes Rijndael algorithm for example: Using System; Using Syste

Public key encryption (asymmetric encryption) New: itccp, http://itccp.com Public key encryption uses a private key that must be kept confidential to unauthorized users and a public key that can be made public to anyone. Both the public key and the private key are connected in mathematics. Data Encrypted with the public key can only be decrypted with the

Luks (Linux unified key setup) provides a standard for Linux hard disk encryption. It not only applies to different Linux Release versions, but also supports multiple users/passwords, because its encryption key is independent of the password, even if the password is lost, we do not need to re-encrypt the entire hard disk, just change the password in time to regain security! Luks provides a standard disk

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 that encrypts data in 64-bit groupings. Des

This article mainly introduces the encryption and decryption functions in PHP and DES encryption and decryption, and analyzes the principles and application methods of common PHP encryption and decryption algorithms encrypt and DES encryption and decryption in the form of examples, it is very practical. if you need it,

This article mainly introduces the encryption and decryption functions in PHP and DES encryption and decryption, and analyzes the principles and application methods of common PHP encryption and decryption algorithms encrypt and DES encryption and decryption in the form of examples, it is very practical. if you need it,

Basic encryption and decryption problems: Conversion of byte arrays and (hexadecimal) strings, encryption and decryption in hexadecimal format During encryption, encryption algorithms and hash algorithms operate on Byte arrays. These algorithms perform various transformations and operations on Byte arrays based on

Email client encryption: 1. Foxmail Foxmail is often used by everyone. Its convenient template-based input and simple multi-account management make it stand out among many mail client software, which is recognized by everyone. Foxmail introduces an access password function in Multi-account management, that is, it allows multiple users to use e-mails in one computer, and accounts are differentiated by access passwords, to achieve safe access. To preven

Base64 for Information Encryption and base64 for encryption Base64 is the simplest and simplest form of encryption. It is often used and recorded for further understanding. Jdk format: // Obtain the keyBase64Encoder encoder = new Base64Encoder ();// Encrypted String encoder_jdk = encoder. encode (src. getBytes (); System. out. println ("encoder:" + encoder );// D

Java uses Apache commons codec for MD5 encryption, BASE64 encryption and decryption, and executes system commands, commonsbase64 Before writing the code, let's first introduce the two packages we will use; Commons-codec-1.10.jarTool packages used to process common encoding methods in the Commons project, such as DES, SHA1, MD5, Base64, URL, and Soundx. Commons-exec-1.3.jarApache Commons Exec is a Java proje

SHA1 encryption summary, sha1 Encryption Public class Sha1Util{/// /// SHA1 encryption, returns an uppercase string/// /// /// Public static string SHA1 (string content){Return SHA1 (content, Encoding. UTF8 );}/// /// SHA1 encryption, returns an uppercase string/// /// /// /// Public static string SHA1 (string content,

PHP rsa encryption and decryption method, phprsa encryption and decryption When the php server interacts with the client and provides open APIs, it usually needs to encrypt sensitive part of api data transmission. At this time, rsa asymmetric encryption can be used, the following example shows how to use php to encrypt and decrypt data. 1. The first step of

The crypt () function can complete one-way encryption functions. String crypt (String str [, string salt]); STR: is a string that needs to be encrypted; salt: The interference string used for encryption. If the salt is omitted, a disturbance string is randomly generated. The crypt () function supports 4 algorithms and lengths: ________________________________________________ Algorithms | Salt length Crypt

1.MD5 Encryption:Java code Public static string Md64encode (String Password) { String newpassword = null; Try { MessageDigest MD5 = messagedigest.getinstance ("MD5"); Base64encoder base64en = new base64encoder (); NewPassword = Base64en.encode (Md5.digest (Password.getbytes ())); System.out.println ("after encryption:"+newpassword); } catch (nosuchalgorithmexception e) { //TODO auto-generated catch block E.printstacktr

This is MD5 encryption.-(nsstring *) Md5hash {Const char *cstr = [self utf8string]; unsigned char result[]; cc_md5(cStr, strlen(cStr), result); nsstring * string= [nsstring stringwithformat: @ "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[,result[], Result[], result[[] , result[], re

Encryption and decryption, PHP integrated encryption. Experts Help me to have a program with a piece of encrypted code. I am too curious to know what is written in it. I still use encryption. You can ask competent predecessors to help decrypt the data. Encrypted Code: PHPcode lt ;? Php $ O00OO0 = urldecode ( quot; % 6E1% 7A % 62% 2F % 6D % decryption, PHP integr

MD5 is a secure hashing algorithm with two features:1, enter two different plaintext (a piece of raw digital information) will not get the same output value2, according to the output value, can not get the original plaintext, that is, the process is irreversibleSo to decrypt the MD5 there is no ready-made algorithm, can only use the poor lifting method, the possible clear text, with the MD5 algorithm hash, the resulting hash value and the original data form a one-on mapping table, and then in th

Document directory Encryption algorithms Hash Algorithms Http://www.cityinthesky.co.uk/delphi.html Delphi I 've been using Delphi for quite a long time now, from version 1 on Windows 3.11! I intend to release any interesting things that I develop as open source programs. I may in future put some maths related programs here but until then the only thing of note is my...Delphi Cryptography Package DCPcrypt is an open source library of cryptogra