在C#中,如何解密用PHP加密的密文(RSA)?

时间:2017-06-24 23:58:48

标签: c# php encryption cryptography rsa

我正在尝试使用C#中的RSA解密已在PHP中加密的密码。这是我的C#代码:

go build -race

PHP代码是:

public byte[] Decrypt(byte[] dataToDecrypt)
{
    byte[] plain;

    using (var rsa = new RSACryptoServiceProvider(2048))
    {
        rsa.PersistKeyInCsp = false;

        rsa.ImportParameters(PrivateKey);
        plain = rsa.Decrypt(dataToDecrypt, false);
    }

    return plain;
}

我在C#中没有异常或错误。问题是,如果我将Decrypt函数的字节数组输出转换为字符串(即使用System.Text.UTF8Encoding.GetString()),则解密的字符串与传递给PHP中的“encrypt”函数的原始纯文本非常不同

知道为什么他们不同吗?我错过了什么?

P.S。我想补充一点,我有代码来加密C#中的数据并以非常类似的方式在PHP中解密,没有任何问题。如上所述,我不能让它以相反的方式工作。谢谢

===更新===

输入数据 - 即$ dataToEncrypt:

public static function encrypt($dataToEncrypt, $userPublicKey) {
   if (openssl_public_encrypt($dataToEncrypt, $encrypted, $userPublicKey, OPENSSL_PKCS1_PADDING)) {
       return $encrypted;
   } else {
       throw new Exception('Unable to encrypt data. Perhaps it is bigger than the key size?');
   }
}

公钥和私钥是:

$sessionKey = mcrypt_create_iv(32, MCRYPT_DEV_URANDOM);

因此,例如,如果base64字符串中的输入($ dataToEncrypt)为:

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA498EWxuZK/KsUgIEusEt
QOJulgTHwb8C4avtzJnzhosTeKooXvyGFPpex6HcQGSRqrWpNr2yhw1BvJvH2UyE
Jisl5BJA5Za+ofmbGifCFwCllZ37U1YpOmqpB2Yt+yYElGh5dp+lqs5Q3u3nPknd
nLS3bxH7qlZBvR9YPWj9x7IuSXJyopAmdJato8xeNHzmBxWD8FgQKICFpLtGsPXq
XRwT0imTs6/EcMqq6fdlp0OyBKyZjw6t47gMeqiuSYz6k41Nf/SbtIC4snUyoUgI
TvnHjWe1cY7js4kY62A9ZpHX0NpG7JXctxVb+aZOv1rS36bUjcP+bug1W3ZKrTG6
hwIDAQAB
-----END PUBLIC KEY-----

我在base64字符串中得到此输出(plain)是:

VPA13tGd8HMlaB3yKxlFBb8/dAXlCjX5Rr1SzE4L6TY=

0 个答案:

没有答案