php Aes 加密模式ECB填充pkcs5padding base64
最近做支付项目用到了aes加密不过试了好多办法总是和官方给出的结果不一样,找了很久终于找到了
测试结果同 http://tool.chacuo.net/cryptaes/
<?php
/**
* [Aes 加密，支持PHP5+]
* 算法模式：ECB
* 密钥长度：128
* 补码方式：PKCS5Padding
* 解密串编码方式：base64/十六进制
* 编码 UTF-8
*/
class Aes {
public function encrypt($input, $key) {
if (substr(PHP_VERSION, 0, 1) == '7') {
return $this->opensslEncrypt($input,$key);
}else{
return $this->mcryptEncrypt($input,$key);
}
}
public function decrypt($input, $key) {
if (substr(PHP_VERSION, 0, 1) == '7') {
return $this->opensslDecrypt($input,$key);
}else{
return $this->mcryptDecrypt($input,$key);
}
}
/**
* [encrypt description]
* 使用mcrypt库进行加密
* @param [type] $input
* @param [type] $key
* @return [type]
*/
public function mcryptEncrypt($input, $key) {
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$input = $this->pkcs5Pad($input, $size);
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);//MCRYPT_DEV_URANDOM
mcrypt_generic_init($td, $key, $iv);
$data = mcrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
$data = base64_encode($data);
return $data;
}
/**
* [pkcs5Pad description]
* @param [type] $text
* @param [type] $blocksize
* @return [type]
*/
private function pkcs5Pad($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
/**
* [decrypt description]
* 使用mcrypt库进行解密
* @param [type] $sStr
* @param [type] $sKey
* @return [type]
*/
public function mcryptDecrypt($sStr, $sKey) {
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB), MCRYPT_RAND);//MCRYPT_DEV_URANDOM
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $sKey, base64_decode($sStr), MCRYPT_MODE_ECB, $iv);
$dec_s = strlen($decrypted);
$padding = ord($decrypted[$dec_s-1]);
$decrypted = substr($decrypted, 0, -$padding);
return $decrypted;
}
/**
* [opensslDecrypt description]
* 使用openssl库进行加密
* @param [type] $sStr
* @param [type] $sKey
* @return [type]
*/
public function opensslEncrypt($sStr, $sKey, $method = 'AES-256-ECB'){
$str = openssl_encrypt($sStr,$method,$sKey);
return $str;
}
/**
* [opensslDecrypt description]
* 使用openssl库进行解密
* @param [type] $sStr
* @param [type] $sKey
* @return [type]
*/
public function opensslDecrypt($sStr, $sKey, $method = 'AES-256-ECB'){
$str = openssl_decrypt($sStr,$method,$sKey);
return $str;
}
}
?>
