《PHP教程:PHP的AES加密算法完整實例》要點:
本文介紹了PHP教程:PHP的AES加密算法完整實例,希望對您有用。如果有疑問,可以聯系我們。
PHP應用本文實例講述了PHP的AES加密算法.分享給大家供大家參考,具體如下:
PHP應用
<?php
class MCrypt {
private $hex_iv = '00000000000000000000000000000000'; # converted JAVA byte code in to HEX and placed it here
private $key = 'U1MjU1M0FDOUZ.Qz'; #Same as in JAVA
function __construct() {
$this->key = hash('sha256', $this->key, true);
//echo $this->key.'<br/>';
}
function encrypt($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);
}
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;
}
}
$encryption = new MCrypt();
echo $encryption->encrypt('123456') . "<br/>";
echo $encryption->decrypt('tpyxISJ83dqEs3uw8bN/+w==');
?>
PHP應用PS:關于加密解密感興趣的朋友還可以參考本站在線工具:
PHP應用密碼安全性在線檢測:
http://tools.jb51.net/password/my_password_safe
PHP應用高強度密碼生成器:
http://tools.jb51.net/password/CreateStrongPassword
PHP應用MD5在線加密工具:
http://tools.jb51.net/password/CreateMD5Password
PHP應用迅雷、快車、旋風URL加密/解密工具:
http://tools.jb51.net/password/urlrethunder
PHP應用在線散列/哈希算法加密工具:
http://tools.jb51.net/password/hash_encrypt
PHP應用更多關于PHP相關內容感興趣的讀者可查看本站專題:《php加密方法總結》、《PHP編碼與轉碼操作技巧匯總》、《php面向對象程序設計入門教程》、《PHP數學運算技巧總結》、《PHP數組(Array)操作技巧大全》、《php字符串(string)用法總結》、《PHP數據結構與算法教程》、《php程序設計算法總結》、《php正則表達式用法總結》、及《php常見數據庫操作技巧匯總》
PHP應用希望本文所述對大家PHP程序設計有所幫助.
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