<?php
namespace app\common\lib;
/**
-
aes 加密 解密类库
-
@by singwa
-
Class Aes
-
@package app\common\lib
*/
class Aes {private $key = null;
/**
*- @param $key 密钥
- @return String
*/
public function __construct() {
// 需要小伙伴在配置文件app.php中定义aeskey
$this->key = config(‘app.aes_key’);
}
/**
-
加密
-
@param String input 加密的字符串
-
@param String key 解密的key
-
@return HexString
*/
public function encrypt($input = ‘’) {
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$input = this−>pkcs5pad(this->pkcs5_pad(this−>pkcs5pad(input, $size);
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, ‘’, MCRYPT_MODE_ECB, ‘’);
iv=mcryptcreateiv(mcryptencgetivsize(iv = mcrypt_create_iv(mcrypt_enc_get_iv_size(iv=mcryptcreateiv(mcryptencgetivsize(td), MCRYPT_RAND);
mcrypt_generic_init($td, $this->key, $iv);data=mcryptgeneric(data = mcrypt_generic(data=mcryptgeneric(td, input);mcryptgenericdeinit(input); mcrypt_generic_deinit(input);mcryptgenericdeinit(td);
mcrypt_module_close($td);
data=base64encode(data = base64_encode(data=base64encode(data);return $data;
}
/**- 填充方式 pkcs5
- @param String text 原始字符串
- @param String blocksize 加密长度
- @return String
*/
private function pkcs5_pad($text, $blocksize) {
$pad = blocksize−(strlen(blocksize - (strlen(blocksize−(strlen(text) % $blocksize);
return text.strrepeat(chr(text . str_repeat(chr(text.strrepeat(chr(pad), $pad);
}
/**
-
解密
-
@param String input 解密的字符串
-
@param String key 解密的key
-
@return String
*/
public function decrypt($sStr) {
decrypted=mcryptdecrypt(MCRYPTRIJNDAEL128,decrypted= mcrypt_decrypt(MCRYPT_RIJNDAEL_128,decrypted=mcryptdecrypt(MCRYPTRIJNDAEL128,this->key,base64_decode($sStr), MCRYPT_MODE_ECB);
decs=strlen(dec_s = strlen(decs=strlen(decrypted);
padding=ord(padding = ord(padding=ord(decrypted[$dec_s-1]);
decrypted=substr(decrypted = substr(decrypted=substr(decrypted, 0, -$padding);return $decrypted;
}
}