修复。
$data = base64_decode(str_replace(' ', '+', $_GET['data']));
无论出于何种原因,Php 将 GET 变量中的 + 转换为空格
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我正在尝试解密正在 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,但没有一个解决问题。
我在网站上查看了几个类似的问题,但没有一个有帮助。
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=
key:b0dJN2c6cklVUX1qUGlFfGMweXRKbH5fSEMuXjAgfQo =
加密字符串:olxa21fxfQGg0EJ5rwMjEzMblvcaTq0AInDASD88wAkNeLqOdon0ukLjz49Hpp36KPTKcTGkj1f7EPYPAAbuADnr3Ff0zpptZkx2d22VRbHrMgj QLF9vDxQRT3er3UAXsAfKKTyW8qeSIgrzACFLX 3yoro/bzWic rt7ED7y0jZ7a1Hci3GMz/4KhwaftarbV QQWStJlSOqdxAdmtRRe84Vi3085S6um51bNrh5QzGRH PcpucfqaTb3junfO9g67j2JUQaM/Tj1EGnv6oX3waTR/LuWyhnhrCH86u10I=
钥匙尺寸: 32
块大小: 32
cipher:Rijndael-256
iv size: 32
Result:/ci�����^/�c�g�������s��c�(��
原始字符串(JSON):{“用户”:“jsmith”,“名字”:“约翰”,“姓氏”:“史密斯”,“电话”:“12223334444.5555”,“电子邮件”:“[电子邮件受保护]","address":"123 Some Street","address2":"apt 456","city":"Some City","state":"LA","zip":"55555"}