Php解密C#.NET RIJNDAEL 256中的字符串

修复它。

$data = base64_decode(str_replace(' ', '+', $_GET['data']));

不管出于什么原因，Php正在将GET变量中的+转换为空间

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我正在尝试解密一个正在C#.NET.中解密的字符串

代码的结果各不相同，有几次最终字符串的某些部分被解密，其余部分是随机字符。

大多数时候，"解密"的字符串都是随机字符，我也尝试了一些Php函数来删除PKCS7填充，但都没有解决问题。

我在网站上看了几个类似的问题，但都没有帮助。

C#

// called as Response.Redirect(url + encryptParams(param));
private string encryptData(string data)
{
    Rijndael aes = Rijndael.Create();
    aes.KeySize = 256;
    aes.BlockSize = 256;
    aes.Mode = CipherMode.CBC;
    aes.Padding = PaddingMode.PKCS7;
    aes.Key = Convert.FromBase64String("b0dJN2c6cklVUX1qUGlFfGMweXRKbH5fSEMuXjAgfQo=");
    ICryptoTransform crypto = aes.CreateEncryptor(aes.Key, aes.IV);
    byte[] txt = ASCIIEncoding.UTF8.GetBytes(data);          
    byte[] cipherText = crypto.TransformFinalBlock(txt, 0, txt.Length);
    return "&data=" + Convert.ToBase64String(cipherText) + "&iv=" + Convert.ToBase64String(aes.IV);
}

Php:

   $data = base64_decode($_GET['data']);
   $iv = base64_decode($_GET['iv']);
   echo "<br /><b>IV</b>: " . $_GET['iv'] .
       "<br /><b>Encrypted String</b>: <br /><textarea>".$_GET['data']."</textarea>" .
       "<br /><b>key size:</b> " . mcrypt_get_key_size ( MCRYPT_RIJNDAEL_256,  MCRYPT_MODE_CBC) .
       "<br /><b>block size:</b> " . mcrypt_get_block_size ( MCRYPT_RIJNDAEL_256,  MCRYPT_MODE_CBC) .
       "<br /><b>cipher:</b> " . mcrypt_get_cipher_name ( MCRYPT_RIJNDAEL_256 ) .
       "<br /><b>iv size:</b> " .  mcrypt_get_iv_size  ( MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CBC) . "<br />"; 
   echo "Result: " . 
      mcrypt_decrypt
      (
          MCRYPT_RIJNDAEL_256,
          base64_decode("b0dJN2c6cklVUX1qUGlFfGMweXRKbH5fSEMuXjAgfQo="),
          $data,
          MCRYPT_MODE_CBC,
          $iv
       );

Php输出：

IV:WzsMlG39tfCGuX2EQM3vq8CoqGA xC0nW jICls8Cno=
键：b0dJN2c6cklVUX1qUGlFfGMweXRKbH5fSEMuXjAgfQo=

加密字符串：oLxa21fxfQGg0EJ5rwMjEzMblvcaTq0AInDAsD88wAkNeLqOdon0ukLjz49Hpp36KPTKcTGkj1f7EPYPAAbuADnr3Ff0zpptZkx2d22VRbHrMgj QLF9vDxQRT3er3UAXsAfKKTyW8qeSIgrzACFLX3yoro/bzWic rt7ED7y0jZ7a1Hci3GMz/4KhwaftarbV QQWStJlSOqdxAdmtRRe84Vi3085s6um51b Nrh5QzGRH PcpucfqaTb3junfO9g67j2JUQaM/Tj1EGnv6oX3w/LuWyhnhrCH86u10I=

密钥大小：32
块大小：32
密码：Rijndael-256
iv大小：32
结果：/ci�����^/�c�g�������s��c�(��

原始字符串（JSON）：｛"user"："jsmith"，"firstName"："John"，"lastName"：《Smith》，"phone"："12223334444.5555"，"email"："john.smith@domain.com"，"address"："123 Some Street"，"address2"："apt 456"，"city"："Some city"，"state"："LA"，"zip"："55555"｝