我正在尝试用C#重写这个函数.但是C#输出与PHP不匹配
PHP版本
// Encrypt data using AES128-cbc
function encrypt($data,$key,$iv) {
$cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128,'','cbc','');
mcrypt_generic_init($cipher,$iv);
$multipass = mcrypt_generic($cipher,$data);
mcrypt_generic_deinit($cipher);
return $multipass;
}
C#版本
public static string encrypt(string encryptionString,string iv,string key)
{
byte[] clearTextBytes = Encoding.UTF8.GetBytes(encryptionString);
var rijn = SymmetricAlgorithm.Create();
rijn.KeySize = 128;
rijn.Mode = CipherMode.CBC;
var ms = new MemoryStream();
var cs = new CryptoStream(ms,rijn.CreateEncryptor(Encoding.UTF8.GetBytes(key),Encoding.UTF8.GetBytes(iv)),CryptoStreamMode.Write);
cs.Write(clearTextBytes,clearTextBytes.Length);
cs.Close();
var tmp = Encoding.UTF8.GetString(ms.ToArray());
return tmp;
}
解决方法
使用PHP加密/解密：
class Cipher {
private $key,$iv;
function __construct() {
$this->key = "edrtjfjfjlldldld";
$this->iv = "56666852251557009888889955123458";
}
function encrypt($text) {
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_256,MCRYPT_MODE_CBC);
$padding = $block - (strlen($text) % $block);
$text .= str_repeat(chr($padding),$padding);
$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256,$this->key,$text,MCRYPT_MODE_CBC,$this->iv);
return base64_encode($crypttext);
}
function decrypt($input) {
$dectext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256,base64_decode($input),$this->iv);
return $dectext;
}
}
使用C#加密/解密：
public class RijndaelSimple
{
const string iv = "56666852251557009888889955123458";
const string key = "edrtjfjfjlldldld";
static public String EncryptRJ256(string plainText)
{
var encoding = new UTF8Encoding();
var Key = encoding.GetBytes(key);
var IV = encoding.GetBytes(iv);
byte[] encrypted;
using (var rj = new RijndaelManaged())
{
try
{
rj.Padding = PaddingMode.PKCS7;
rj.Mode = CipherMode.CBC;
rj.KeySize = 256;
rj.BlockSize = 256;
rj.Key = Key;
rj.IV = IV;
var ms = new MemoryStream();
using (var cs = new CryptoStream(ms,rj.CreateEncryptor(Key,IV),CryptoStreamMode.Write))
{
using (var sr = new StreamWriter(cs))
{
sr.Write(plainText);
sr.Flush();
cs.FlushFinalBlock();
}
encrypted = ms.ToArray();
}
}
finally
{
rj.Clear();
}
}
return Convert.ToBase64String(encrypted);
}
static public String DecryptRJ256(string input)
{
byte[] cypher = Convert.FromBase64String(input);
var sRet = "";
var encoding = new UTF8Encoding();
var Key = encoding.GetBytes(key);
var IV = encoding.GetBytes(iv);
using (var rj = new RijndaelManaged())
{
try
{
rj.Padding = PaddingMode.PKCS7;
rj.Mode = CipherMode.CBC;
rj.KeySize = 256;
rj.BlockSize = 256;
rj.Key = Key;
rj.IV = IV;
var ms = new MemoryStream(cypher);
using (var cs = new CryptoStream(ms,rj.CreateDecryptor(Key,CryptoStreamMode.Read))
{
using (var sr = new StreamReader(cs))
{
sRet = sr.ReadLine();
}
}
}
finally
{
rj.Clear();
}
}
return sRet;
}
}
