Encryption 在php中加密ASP（Rijndael）和Descrypt

我有一个ASP的代码，但我不知道在php加密和比较密码加密

我的图书馆是：

   using System.Security.Cryptography;

    // Encrypt a string into a string using a password 

    //    Uses Encrypt(byte[], byte[], byte[]) 

    public string Encrypt(string clearText, string Password)
    {

        // First we need to turn the input string into a byte array. 

        byte[] clearBytes = System.Text.Encoding.Unicode.GetBytes(clearText);



        // Then, we need to turn the password into Key and IV 

        // We are using salt to make it harder to guess our key using a dictionary attack - 

        // trying to guess a password by enumerating all possible words. 

        PasswordDeriveBytes pdb = new PasswordDeriveBytes(Password,

                    new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });



        // Now get the key/IV and do the encryption using the function that accepts byte arrays. 

        // Using PasswordDeriveBytes object we are first getting 32 bytes for the Key 

        // (the default Rijndael key length is 256bit = 32bytes) and then 16 bytes for the IV. 

        // IV should always be the block size, which is by default 16 bytes (128 bit) for Rijndael. 

        // If you are using DES/TripleDES/RC2 the block size is 8 bytes and so should be the IV size. 

        // You can also read KeySize/BlockSize properties off the algorithm to find out the sizes. 

        byte[] encryptedData = Encrypt(clearBytes, pdb.GetBytes(32), pdb.GetBytes(16));



        // Now we need to turn the resulting byte array into a string. 

        // A common mistake would be to use an Encoding class for that. It does not work 

        // because not all byte values can be represented by characters. 

        // We are going to be using Base64 encoding that is designed exactly for what we are 

        // trying to do. 

        return Convert.ToBase64String(encryptedData);

    }

php代码是：

function fnEncrypt($Word, $key){

    $iv = mcrypt_create_iv( mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_RAND );

    if (strlen($iv_base64 = rtrim(base64_encode($iv), '=')) != 22) return false;

    $encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $Word . md5($Word), MCRYPT_MODE_CBC, $iv));

    return $iv_base64 . $encrypted;
}

或者我尝试在php中使用以下代码：

function Encrypt($pass, $salt){

    $derived = PBKDF1($pass, $salt, 100, 32);
    $key = bin2hex(substr($derived, 0, 32));
    $iv = bin2hex(substr($derived, 32, 16));
    return mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $pass, MCRYPT_MODE_CBC, $iv);
}
function PBKDF1($pass, $salt, $count, $dklen)
{
     $t = sha1($pass.$salt);
    for($i=1; $i <= $count; $i++)
    {
        $t = sha1($t);
    }
    $t = substr($t,0,$dklen-1);
    return $t;
}

函数加密（$pass，$salt）{
$derived=PBKDF1（$pass，$salt，100,32）；
$key=bin2hex（substr（$derived，0，32））；
$iv=bin2hex（substr（$derived，32，16））；
返回mcrypt_encrypt（mcrypt_RIJNDAEL_128，$key，$pass，mcrypt_MODE_CBC，$iv）；
}
函数PBKDF1（$pass、$salt、$count、$dklen）
{
$t=sha1（$pass.$salt）；
对于（$i=1；$i什么不起作用？您希望发生什么？加密代码不一样，每次刷新页面时，加密代码都不一样。我有ASP的加密代码，但生成函数的加密代码与ASP.net和PHP中发生的行为不同？sa到底是什么我？我注意到这行
$iv=mcrypt_create_iv（mcrypt_get_iv_size（mcrypt_RIJNDAEL_128，mcrypt_MODE_CBC），mcrypt_RAND）；
您是否确保使用相同的iv进行加密和解密？如果它们不同，解密将失败。