当我用C#加密时,我得到arTdPqWOg6VppOqUD6mGITjb24 x5vJjfAufNQ4DN7rVEtpDmhFnMeJGg4n5y1BN
static void Main(string[] args)
{
Encoding byteEncoder = Encoding.Default;
String key = "ShHhd8a08JhJiho98ayslcjh";
String message = "Let us meet at 9 o'clock at the secret place.";
String encryption = Encrypt(message,key,false);
String decryption = Decrypt(encryption,false);
Console.WriteLine("Message: {0}",message);
Console.WriteLine("Encryption: {0}",encryption);
Console.WriteLine("Decryption: {0}",decryption);
}
public static string Encrypt(string toEncrypt,string key,bool useHashing)
{
byte[] keyArray;
byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
}
else
keyArray = UTF8Encoding.UTF8.GetBytes(key);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray,toEncryptArray.Length);
return Convert.ToBase64String(resultArray,resultArray.Length);
}
public static string Decrypt(string toDecrypt,bool useHashing)
{
byte[] keyArray;
byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
}
else
keyArray = UTF8Encoding.UTF8.GetBytes(key);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray,toEncryptArray.Length);
return UTF8Encoding.UTF8.GetString(resultArray);
}
当我用PHP加密时,我得到：arTdPqWOg6VppOqUD6mGITjb24 x5vJjfAufNQ4DN7rVEtpDmhFnMVM W / WFlksR
<?PHP
$key = "ShHhd8a08JhJiho98ayslcjh";
$input = "Let us meet at 9 o'clock at the secret place.";
$td = mcrypt_module_open('tripledes','','ecb','');
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td),MCRYPT_RAND);
mcrypt_generic_init($td,$key,$iv);
$encrypted_data = mcrypt_generic($td,$input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
echo base64_encode($encrypted_data);
?>
我对密码学知之甚少,无法弄清楚原因.有任何想法吗？谢谢.
彼得是对的. PHP只是用零填充,而你在C#代码中使用PKCS#7.这是一些应该正确的代码：
function pkcs7_pad($text,$blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad),$pad);
}
$input = pkcs7_pad("Let us meet at 9 o'clock at the secret place.",16);
或者,你应该能够将它放在你的C#代码中：
tdes.Padding = PaddingMode.Zeros;
并且它也有效(虽然稍微不那么安全).