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初始化代码
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‎.gitignore

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vendor
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composer.lock

‎composer.json

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{
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"name": "qinqw/php-crypto",
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"description": "Provides an easy and secure way to encrypt/decrypt data with PHP using the Symmetric Cryptography method.(DES,RSA)",
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"homepage": "http://www.qinqiwei.com",
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"license": "Apache-2.0",
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"keywords": ["Crypt PHP DES 3DES RSA OPENSSL Qinqw"],
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"type": "project",
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"authors": [
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{
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"name": "Kevin",
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"email": "qinqiwei@hotmail.com"
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}
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],
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"require": {
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"php": ">=5.5.0"
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},
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"autoload": {
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"psr-4": {
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"Qinqw\\Crypto\\": "src/"
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}
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}
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}

‎examples/bootstrap.php

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<?php
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/**
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* Provides an easy and secure way to encrypt/decrypt data with PHP
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* using the Symmetric Cryptography method.(DES,3DES,OPENSSL)
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* bootstrap
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*
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* @category PHP_Crypto
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* @package Qinqw\Crypto
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* @author Kevin <qinqiwei@hotmail.com>
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* @license Apache License V2
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* @link https://github.com/qinqw/php-crypto
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*/
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spl_autoload_register(
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function ($class) {
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// project-specific namespace prefix
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$prefix = 'Qinqw\\Crypto';
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// base directory for the namespace prefix
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$base_dir = dirname(__DIR__) . '/src/';
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// does the class use the namespace prefix?
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$len = strlen($prefix);
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if (strncmp($prefix, $class, $len) !== 0) {
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// no, move to the next registered autoloader
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return;
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}
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// get the relative class name
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$relative_class = substr($class, $len);
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// replace the namespace prefix with the base directory, replace namespace
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// separators with directory separators in the relative class name, append
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// with .php
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$file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
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// if the file exists, require it
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if (file_exists($file)) {
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//require $file;
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include $file;
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}
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}
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);

‎examples/des.php

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<?php
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/**
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* Provides an easy and secure way to encrypt/decrypt data with PHP
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* using the Symmetric Cryptography method.(DES,3DES,OPENSSL)
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*
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* @category PHP_Crypto
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* @package Qinqw\Crypto
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* @author Kevin <qinqiwei@hotmail.com>
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* @license Apache License V2
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* @link https://github.com/qinqw/php-crypto
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*/
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require 'bootstrap.php';
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use Qinqw\Crypto\DES;
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$key = 'qinqiwei';
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$plaintext = 'aaaaaallllll';
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$encrypt =DES::encrypt($plaintext,$key);
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var_dump($encrypt);
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$decrypt = DES::decrypt($encrypt,$key);
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var_dump($decrypt);
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$encrypt= 'igCw5Heuc1M=';
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$decrypt = DES::decrypt($encrypt);
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var_dump($decrypt);
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// $ciphers_and_aliases = openssl_get_cipher_methods(true);
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// var_dump($ciphers_and_aliases);

‎src/DES.php

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<?php
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/**
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* Provides an easy and secure way to encrypt/decrypt data with PHP
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* using the Symmetric Cryptography method.(DES,3DES,OPENSSL)
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* bootstrap
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*
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* @category PHP_Crypto
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* @package Qinqw\Crypto
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* @author Kevin <qinqiwei@hotmail.com>
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* @license Apache License V2
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* @link https://github.com/qinqw/php-crypto
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*/
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namespace Qinqw\Crypto;
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class DES
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{
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/**
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* des-cbc加密
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* @param string $data 要被加密的数据
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* @param string $key 加密使用的key
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*/
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public static function encrypt($data, $key=null)
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{
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if(strlen($key)!=8)
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{
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$key='x#a-y6nl';
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}
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$cipher = 'des-cbc';
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$ivlen = openssl_cipher_iv_length($cipher);
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$iv = $key;
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$options = 0;
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return openssl_encrypt($data, $cipher, $key, $options, $iv);
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}
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/**
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* des-cbc解密
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* @param string $data 加密数据
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* @param string $key 加密使用的key
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*/
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public static function decrypt($data, $key=null)
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{
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if(strlen($key)!=8)
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{
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$key='x#a-y6nl';
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}
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$cipher = 'des-cbc';
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$ivlen = openssl_cipher_iv_length($cipher);
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$iv = $key;
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$options = 0;
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return openssl_decrypt($data, $cipher, $key, $options, $iv);
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}
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}

‎src/RSA.php

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<?php
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/**
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* Provides an easy and secure way to encrypt/decrypt data with PHP
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* using the Symmetric Cryptography method.(DES,3DES,OPENSSL)
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* bootstrap
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*
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* @category PHP_Crypto
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* @package Qinqw\Crypto
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* @author Kevin <qinqiwei@hotmail.com>
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* @license Apache License V2
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* @link https://github.com/qinqw/php-crypto
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*/
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namespace Qinqw\Crypto;
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class RSA {
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private $privateKey = null;
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private $publicKey = null;
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function __construct($publicKey, $privateKey) {
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$this->publicKey = $publicKey;
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$this->privateKey = $privateKey;
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}
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/**
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* 私钥加密
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* @param string $data 要加密的数据
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* @return string 加密后的字符串
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*/
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public function privateKeyEncode($data) {
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$encrypted = '';
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$this->_needKey(2);
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$private_key = openssl_pkey_get_private($this->privateKey);
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$fstr = array();
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$array_data = $this->_splitEncode($data);//把要加密的信息 base64 encode后 等长放入数组
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foreach ($array_data as $value) {//理论上是可以只加密数组中的第一个元素 其他的不加密 因为只要一个解密不出来 整体也就解密不出来 这里先全部加密
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openssl_private_encrypt($value, $encrypted, $private_key); //私钥加密
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$fstr[] = $encrypted;//对数组中每个加密
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}
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return base64_encode(serialize($fstr));//序列化后base64_encode
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}
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/**
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* 公钥加密
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* @param string $data 要加密的数据
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* @return string 加密后的字符串
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*/
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public function publicKeyEncode($data) {
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$encrypted = '';
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$this->_needKey(1);
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$public_key = openssl_pkey_get_public($this->publicKey);
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$fstr = array();
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$array_data = $this->_splitEncode($data);
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foreach ($array_data as $value) {
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openssl_public_encrypt($value, $encrypted, $public_key); //私钥加密
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$fstr[] = $encrypted;
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}
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return base64_encode(serialize($fstr));
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}
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/**
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* 用公钥解密私钥加密内容
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* @param string $data 要解密的数据
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* @return string 解密后的字符串
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*/
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public function decodePrivateEncode($data) {
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$decrypted = '';
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$this->_needKey(1);
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$public_key = openssl_pkey_get_public($this->publicKey);
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$array_data = $this->_toArray($data);//数据base64_decode 后 反序列化成数组
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$str = '';
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foreach ($array_data as $value){
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openssl_public_decrypt($value, $decrypted, $public_key); //私钥加密的内容通过公钥可用解密出来
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$str .= $decrypted;//对数组中的每个元素解密 并拼接
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}
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return base64_decode($str);//把拼接的数据base64_decode 解密还原
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}
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/**
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* 用私钥解密公钥加密内容
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* @param string $data 要解密的数据
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* @return string 解密后的字符串
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*/
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public function decodePublicEncode($data) {
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$decrypted = '';
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$this->_needKey(2);
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$private_key = openssl_pkey_get_private($this->privateKey);
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$array_data = $this->_toArray($data);
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$str = '';
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foreach ($array_data as $value){
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openssl_private_decrypt($value, $decrypted, $private_key); //私钥解密
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$str .= $decrypted;
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}
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return base64_decode($str);
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}
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/**
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* 检查是否 含有所需配置文件
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* @param int 1 公钥 2 私钥
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* @return int 1
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* @throws Exception
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*/
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private function _needKey($type) {
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switch ($type) {
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case 1:
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if (empty($this->publicKey)) {
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throw new Exception('请配置公钥');
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}
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break;
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case 2:
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if (empty($this->privateKey)) {
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throw new Exception('请配置私钥');
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}
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break;
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}
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return 1;
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}
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/**
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*
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* @param type $data
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* @return type
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*/
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private function _splitEncode($data) {
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$data = base64_encode($data); //加上base_64 encode 便于用于 分组
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$total_lenth = strlen($data);
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$per = 96;// 能整除2 和 3 RSA每次加密不能超过100个
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$dy = $total_lenth % $per;
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$total_block = $dy ? ($total_lenth / $per) : ($total_lenth / $per - 1);
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for ($i = 0; $i < $total_block; $i++) {
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$return[] = substr($data, $i * $per, $per);//把要加密的信息base64 后 按64长分组
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}
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return $return;
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}
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/**
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*公钥加密并用 base64 serialize 过的 data
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* @param type $data base64 serialize 过的 data
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*/
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private function _toArray($data){
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$data = base64_decode($data);
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$array_data = unserialize($data);
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if(!is_array($array_data)){
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throw new Exception('数据加密不符');
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}
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return $array_data;
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}
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}

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