标签：lock format result 解密 orm highlight seed pad tin
做对接的时候，服务商做的AES加密通过SHA1PRNG算法（只要password一样，每次生成的数组都是一样的，所以可以用来做加密解密的key）进行了又一次加密，搞了好几个小时，直接看对应的代码吧，可以参考一下，只有Java的加密源码
private static byte[] encrypt(byte[] byteContent, byte[] password) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG"); secureRandom.setSeed(password); kgen.init(128, secureRandom); SecretKey secretKey = kgen.generateKey(); byte[] enCodeFormat = secretKey.getEncoded(); SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES"); Cipher cipher = Cipher.getInstance("AES"); cipher.init(1, key); byte[] result = cipher.doFinal(byteContent); return result; }
private function _pkcs5Pad($text, $blockSize)
{
$pad = $blockSize - (strlen($text) % $blockSize);
return $text . str_repeat(chr($pad), $pad);
}
private function _pkcs5Unpad($text)
{
$end = substr($text, -1);
$last = ord($end);
$len = strlen($text) - $last;
if(substr($text, $len) == str_repeat($end, $last))
{
return substr($text, 0, $len);
}
return false;
}
public function encrypt($encrypt, $key)
{
$blockSize = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$paddedData = $this->_pkcs5Pad($encrypt, $blockSize);
$ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($ivSize, MCRYPT_RAND);
$key2 = substr(openssl_digest(openssl_digest($key, ‘sha1‘, true), ‘sha1‘, true), 0, 16);
$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key2, $paddedData, MCRYPT_MODE_ECB, $iv);
return base64_encode($encrypted);
}
public function decrypt($decrypt, $key)
{
$decoded = $this->hex2bin($decrypt);
$blockSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($blockSize, MCRYPT_RAND);
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $decoded, MCRYPT_MODE_ECB, $iv);
return $this->_pkcs5Unpad($decrypted);
}
function hex2bin($str)
{
$sbin = "";
$len = strlen($str);
for($i = 0; $i < $len; $i += 2)
{
$sbin .= pack("H*", substr($str, $i, 2));
}
return $sbin;
}
标签：lock format result 解密 orm highlight seed pad tin
原文地址：http://www.cnblogs.com/dragon16/p/7238858.html
