You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.6 KiB
PHTML
71 lines
1.6 KiB
PHTML
5 years ago
|
<?php
|
||
|
|
/**
|
||
|
|
* 加密工具类
|
||
|
|
*
|
||
|
|
* User: jiehua
|
||
|
|
* Date: 16/3/30
|
||
|
|
* Time: 下午3:25
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 加密方法
|
||
|
|
* @param string $str
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
function encrypt($str,$screct_key){
|
||
|
|
//AES, 128 模式加密数据 CBC
|
||
|
|
$screct_key = base64_decode($screct_key);
|
||
|
|
$str = trim($str);
|
||
|
|
$str = addPKCS7Padding($str);
|
||
|
|
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_CBC),1);
|
||
|
|
$encrypt_str = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC);
|
||
|
|
return base64_encode($encrypt_str);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 解密方法
|
||
|
|
* @param string $str
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
function decrypt($str,$screct_key){
|
||
|
|
//AES, 128 模式加密数据 CBC
|
||
|
|
$str = base64_decode($str);
|
||
|
|
$screct_key = base64_decode($screct_key);
|
||
|
|
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_CBC),1);
|
||
|
|
$encrypt_str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC);
|
||
|
|
$encrypt_str = trim($encrypt_str);
|
||
|
|
|
||
|
|
$encrypt_str = stripPKSC7Padding($encrypt_str);
|
||
|
|
return $encrypt_str;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 填充算法
|
||
|
|
* @param string $source
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
function addPKCS7Padding($source){
|
||
|
|
$source = trim($source);
|
||
|
|
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
|
||
|
|
|
||
|
|
$pad = $block - (strlen($source) % $block);
|
||
|
|
if ($pad <= $block) {
|
||
|
|
$char = chr($pad);
|
||
|
|
$source .= str_repeat($char, $pad);
|
||
|
|
}
|
||
|
|
return $source;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* 移去填充算法
|
||
|
|
* @param string $source
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
function stripPKSC7Padding($source){
|
||
|
|
$source = trim($source);
|
||
|
|
$char = substr($source, -1);
|
||
|
|
$num = ord($char);
|
||
|
|
if($num==62)return $source;
|
||
|
|
$source = substr($source,0,-$num);
|
||
|
|
return $source;
|
||
|
|
}
|