在 PHP 中复制 .Net 加密答案

【问题标题】：Replicating .Net encryption in PHP在 PHP 中复制 .Net 加密
【发布时间】：2011-11-07 20:14:19
【问题描述】：

我正在尝试复制已经存在的加密方法，该方法用于在 PHP 中用 VB.Net 编写的应用程序的一部分。生成的加密值必须相同。我没有太多的加密经验，尽管我尽最大努力在网上搜索信息，但我的加密值不匹配。有人可以告诉我我的 PHP 代码哪里出错了吗？

这是 .Net 进程。很遗憾，目前无法更改此方法。

Public Class Encrypt


'8 bytes randomly selected for both the Key and the Initialization Vector
'the IV is used to encrypt the first block of text so that any repetitive 
'patterns are not apparent
Private Shared KEY_64() As Byte = {42, 16, 93, 156, 78, 4, 218, 32}
Private Shared IV_64() As Byte = {55, 103, 246, 79, 36, 99, 167, 3}

Public Function EncryptPwd(ByVal value As String) As String
    Try


        Dim cryptoProvider As DESCryptoServiceProvider = _
                New DESCryptoServiceProvider()
        Dim ms As MemoryStream = New MemoryStream()
        Dim cs As CryptoStream = _
            New CryptoStream(ms, cryptoProvider.CreateEncryptor(KEY_64, IV_64), _
                CryptoStreamMode.Write)
        Dim sw As StreamWriter = New StreamWriter(cs)

        sw.Write(value)
        sw.Flush()
        cs.FlushFinalBlock()
        ms.Flush()

        'convert back to a string
        Return Convert.ToBase64String(ms.GetBuffer(), 0, CInt(ms.Length))
    Finally

    End Try
End Function
End Class

这是我的 PHP。

<?php

function addpadding($string, $blocksize = 8)
{
    $len = strlen($string);
    $pad = $blocksize - ($len % $blocksize);
    $string .= str_repeat(chr($pad), $pad);
    return $string;
}
    ?>
<form id="form1" name="form1" method="post" action="">
  enter text
  <input name="data" type="text" />
  <input type="hidden" value="op" name="op" />
  <input type="submit" name="Submit" value="Submit" />
</form>
    <?php

if(!isset($_POST['op'])) {

}else {
    $buffer = $_POST['data']; 

    $keyArray=array( 42, 16, 93, 18, 156, 78, 4, 32 );
    $key=null;
    foreach ($keyArray as $element)
        $key.=CHR($element);
    $ivArray=array( 55, 103, 246, 79, 36, 99, 167, 3 );
    $iv=null;
    foreach ($ivArray as $element)
        $iv.=CHR($element);

    echo "Key: " .$key. "<br>";
    echo "IV: " .$iv. "<br>";
    echo "Result: " .base64_encode(mcrypt_cbc(MCRYPT_DES, $key, addpadding($buffer), MCRYPT_ENCRYPT, $iv));
}
?>

【问题讨论】：

标签： php asp.net encryption

【解决方案1】：

好像打错了

Private Shared KEY_64() As Byte = {42, 16, 93, 156, 78, 4, 218, 32}
$keyArray=array( 42, 16, 93, 18, 156, 78, 4, 32 );

试试 $keyArray=array(42, 16, 93, 156, 78, 4, 218, 32);

【讨论】：

【解决方案2】：

我在从 .Net 获取 RSA 加密数据以在 PHP 中解密时遇到过类似问题。通常它归结为字符集问题。如果可能，请确保两个系统都将字符串值作为 UTF-8 字符串处理。

【讨论】：