Re: [請益] 歐付寶金流串接
歐付寶是採用 AES 128Bit CBC 模式加密,
加密資料如果長度不是 16 Bytes 整數倍時會出問題。
必須透過 Padding 方式補齊。歐付寶是採用 PKCS17 Padding。
這邊自己寫了一個 Library 用 mcrpt 來做加解密。
class AESCrypt
{
protected $iv;
protected $key;
protected $blockSize;
public function __construct($key, $iv = null, $mode = MCRYPT_MODE_CBC)
{
if($iv === null){
$size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, $mode);
$iv = mcrypt_create_iv($size, MCRYPT_DEV_RANDOM);
}
$this->key = $key;
$this->iv = $iv;
$this->blockSize = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, $mode);
}
protected function addPadding($data)
{
$paddingSize = $this->blockSize - (strlen($data) % $this->blockSize);
$data .= str_repeat(chr($paddingSize), $paddingSize);
return $data;
}
protected function removePadding($data)
{
$len = strlen($data);
$paddingSize = ord($data[$len-1]);
return substr($data, 0, $len - $paddingSize);
}
public function encrypt($plainData)
{
return mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->key,
$this->addPadding($plainData), MCRYPT_MODE_CBC, $this->iv);
}
public function decrypt($encryptData)
{
$decryptData = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->key,
$encryptData, MCRYPT_MODE_CBC, $this->iv);
return $this->removePadding($decryptData);
}
}
使用方式
$aesCrypt = new AESCrypt($key, $iv);
$encryptedData = $aesCrypt->encrypt('Plain Data');
$plainData = $aesCrypt->decrypt($encryptedData);
注意這邊的資料是使用 raw data。
如果要放在 XML 傳輸,請記得將 $encryptedData 做 base64_encode。
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 220.130.136.115
※ 文章網址: http://www.ptt.cc/bbs/PHP/M.1397697430.A.3DF.html
推
04/17 11:11, , 1F
04/17 11:11, 1F
→
04/17 11:12, , 2F
04/17 11:12, 2F
→
04/17 13:36, , 3F
04/17 13:36, 3F
→
04/17 13:36, , 4F
04/17 13:36, 4F
→
04/17 17:07, , 5F
04/17 17:07, 5F
→
04/17 17:07, , 6F
04/17 17:07, 6F
→
04/17 17:08, , 7F
04/17 17:08, 7F
推
04/17 19:15, , 8F
04/17 19:15, 8F
→
04/18 01:00, , 9F
04/18 01:00, 9F
→
04/18 09:22, , 10F
04/18 09:22, 10F
→
04/18 12:16, , 11F
04/18 12:16, 11F
→
04/18 12:17, , 12F
04/18 12:17, 12F
→
04/18 12:17, , 13F
04/18 12:17, 13F
→
04/18 12:18, , 14F
04/18 12:18, 14F
→
04/18 13:22, , 15F
04/18 13:22, 15F
→
04/18 13:23, , 16F
04/18 13:23, 16F
→
04/18 13:23, , 17F
04/18 13:23, 17F
→
04/18 20:54, , 18F
04/18 20:54, 18F
討論串 (同標題文章)
完整討論串 (本文為第 3 之 3 篇):
請益
2
18