<?php
|
/**
|
* Created by PhpStorm.
|
* User: 80374806
|
* Date: 2016/8/31
|
* Time: 14:24
|
*/
|
|
class DES{
|
var $key;
|
|
function DES($key) {
|
//key长度8
|
$this->key = $key;
|
}
|
|
/*
|
* DES加密算法,使用mcrypt库，加密，返回大写十六进制字符串
|
* $string 要加密的数据
|
*/
|
function encrypt($string) {
|
|
$size = mcrypt_get_block_size('des', 'ecb');
|
$string = mb_convert_encoding($string, 'GBK', 'UTF-8');
|
$pad = $size - (strlen($string) % $size);
|
$string = $string . str_repeat(chr($pad), $pad);
|
$td = mcrypt_module_open('des', '', 'ecb', '');
|
$iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
|
@mcrypt_generic_init($td, $this->key, $iv);
|
$data = mcrypt_generic($td, $string);
|
mcrypt_generic_deinit($td);
|
mcrypt_module_close($td);
|
$data = $this->String2Hex($data);
|
return strtoupper($data);
|
}
|
|
//转成16进制
|
function String2Hex($string)
|
{
|
$hex = '';
|
for ($i = 0; $i < strlen($string); $i++) {
|
$hex .= dechex(ord($string[$i]));
|
}
|
return $hex;
|
}
|
}
|
