<?php
/**
* php、ios、Android 通用的AES加密、解密方法
*/
namespace Common\Business; class AESCrypt
{
/**
* 初始矢量
* @var string
*/
# converted JAVA byte code in to HEX and placed it here
//private $hex_iv = '00000000000000000000000000000000';
private $key = ''; function __construct($key) {
$this->key = $key;
$this->key = hash('sha256', $this->key, true);
} /**
* 设置密钥
* @param $new_key
*/
function set_key($new_key)
{
$this->key = $new_key;
} /**
* 加密
* @param $str
* @return string
*/
function encrypt($str) {
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv));
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$pad = $block - (strlen($str) % $block);
$str .= str_repeat(chr($pad), $pad);
$encrypted = mcrypt_generic($td, $str);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return base64_encode($encrypted);
} /**
* 解密
* @param $code
* @return bool|string
*/
function decrypt($code) {
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv));
$str = mdecrypt_generic($td, base64_decode($code));
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $this->strippadding($str);
} /*
For PKCS7 padding
*/
private function addpadding($string, $blocksize = 16) {
$len = strlen($string);
$pad = $blocksize - ($len % $blocksize);
$string .= str_repeat(chr($pad), $pad);
return $string;
} private function strippadding($string) {
$slast = ord(substr($string, -1));
$slastc = chr($slast);
$pcheck = substr($string, -$slast);
if (preg_match("/$slastc{" . $slast . "}/", $string)) {
$string = substr($string, 0, strlen($string) - $slast);
return $string;
} else {
return false;
}
} function hexToStr($hex)
{
$string='';
for ($i=0; $i < strlen($hex)-1; $i+=2)
{
$string .= chr(hexdec($hex[$i].$hex[$i+1]));
}
return $string;
}
} ?>
/**
* AES
*/
class AES
{ /**
* 注：不要修改这几个值，有不同需求请以参数形式传入！
*/
const METHOD = 'AES-128-CBC';
const KEY = 'zbtcyuc5msxidyam';
const IV = 'bthuiwldicoayzbt'; /**
* 加密
*
* @param string $data
* @param string $method
* @param string $key
* @param int $options
* @param string $iv
* @return string
*/
public static function encrypt($data = '', $method = self::METHOD, $key = self::KEY, $options = 0, $iv = self::IV)
{
$encrypted = openssl_encrypt($data, $method, $key, $options, $iv);
return $encrypted;
} /**
* 解密
*
* @param string $data
* @param string $method
* @param string $key
* @param int $options
* @param string $iv
* @return string
*/
public static function decrypt($data = '', $method = self::METHOD, $key = self::KEY, $options = 0, $iv = self::IV)
{
$decrypted = openssl_decrypt($data, $method, $key, $options, $iv);
return $decrypted;
} }
RSA2加、解密
//加密
$signContent = $this->getSignContent($params);
openssl_private_encrypt($signContent, $encrypted, $this->getPrivateKey());//私钥加密
$sign = base64_encode($encrypted); //base64只是为了避免特殊字符 //解密
$signContent = $this->getSignContent($params);
$publicKey = openssl_get_publickey($this->getPublicKey()); //转换为openssl格式密钥
$result = (bool)openssl_verify($params, base64_decode($sign), $publicKey, OPENSSL_ALGO_SHA256); //调用openssl内置方法验签，返回bool值