RSA在与OpenSSL的在PHP 5.3.2加密C＃（.NET 3.5）的数据进行解密 [英] RSA decrypting data in C# (.NET 3.5) which was encrypted with openssl in php 5.3.2

问题描述

也许有人可以让我清醒。我一直在上网对这个有一段时间了。

Maybe someone can clear me up. I have been surfing on this a while now.

1) openssl req -x509 -nodes -days 3650 -newkey rsa:1024 -keyout privatekey.pem -out mycert.pem

2) openssl rsa -in privatekey.pem -pubout -out publickey.pem

3) openssl pkcs12 -export -out mycertprivatekey.pfx -in mycert.pem -inkey privatekey.pem -name "my certificate"

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第二步：请问关于PHP根证书的工作：YES

PHP端

我使用的公钥。 PEM读入PHP的：

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Step #2: Does root certificate work on php: YES

PHP side

I used the publickey.pem to read it into php:

$publicKey = "file://C:/publickey.pem";
$privateKey = "file://C:/privatekey.pem";
$plaintext = "123";

openssl_public_encrypt($plaintext, $encrypted, $publicKey);
$transfer = base64_encode($encrypted);
openssl_private_decrypt($encrypted, $decrypted, $privateKey);

echo $decrypted;  // "123"

或

$server_public_key = openssl_pkey_get_public(file_get_contents("C:\publickey.pem"));
// rsa encrypt
openssl_public_encrypt("123", $encrypted, $server_public_key);

//and the privatekey.pem to check if it works:
openssl_private_decrypt($encrypted, $decrypted, openssl_get_privatekey(file_get_contents("C:\privatekey.pem")));

echo $decrypted;  // "123"

即将得出结论，即加密/解密正常工作在PHP端与。这些OpenSSL的根证书文件

Coming to the conclusion, that encryption/decryption works fine on the php side with these openssl root certificate files.

在相同的方式我读的钥匙到.NET的C＃控制台程序：

In same manner I read the keys into a .net C# console program:

X509Certificate2 myCert2 = null;
RSACryptoServiceProvider rsa = null;

try
{
    myCert2 = new X509Certificate2(@"C:\mycertprivatekey.pfx", "password");
    rsa = (RSACryptoServiceProvider)myCert2.PrivateKey;
}
catch (Exception e)
{
    Console.writeln(e.message); // because I left a blank catch block, I did not realize there was an exception! I missed the password for the certificate.
}

byte[] test = {Convert.ToByte("123")};

string t = Convert.ToString(rsa.Decrypt(rsa.Encrypt(test, false), false));

即将到一点，那加密/解密正常工作与这些OpenSSL的根证书文件C＃端

Coming to the point, that encryption/decryption works fine on the c# side with these openssl root certificate files.

$onett = "123"
....
openssl_public_encrypt($onett, $encrypted, $server_public_key);
$onettbase64 = base64_encode($encrypted);

复制 - 粘贴$ onettbase64（LkU2GOCy4lqwY4vtPI1JcsxgDgS2t05E6kYghuXjrQe7hSsYXETGdlhzEBlp + qhxzTXV3pw + AS5bEg9CPxqHus8fXHOnXYqsd2HL20QSaz + FjZee6Kvva0cGhWkFdWL + ANDSOWRWo / OMhm7JVqU3P / 44c3dLA1eu2UsoDI26OMw = ）转换成C＃程序：

copy - paste $onettbase64 ("LkU2GOCy4lqwY4vtPI1JcsxgDgS2t05E6kYghuXjrQe7hSsYXETGdlhzEBlp+qhxzTXV3pw+AS5bEg9CPxqHus8fXHOnXYqsd2HL20QSaz+FjZee6Kvva0cGhWkFdWL+ANDSOWRWo/OMhm7JVqU3P/44c3dLA1eu2UsoDI26OMw=") into c# program:

byte[] transfered_onett = rsa.Decrypt(Convert.FromBase64String("LkU2GOCy4lqwY4vtPI1JcsxgDgS2t05E6kYghuXjrQe7hSsYXETGdlhzEBlp+qhxzTXV3pw+AS5bEg9CPxqHus8fXHOnXYqsd2HL20QSaz+FjZee6Kvva0cGhWkFdWL+ANDSOWRWo/OMhm7JVqU3P/44c3dLA1eu2UsoDI26OMw="), false);

string result = System.Text.Encoding.UTF8.GetString(transfered_onett); // "123"

没有问题。

推荐答案

您需要使用而设计的PFX的X509Certificate2构造函数之一（又名PKCS＃12）文件。这些都需要一个密码参数。在你原来的例子，你默默吞咽所有的异常，所以你错过了错误。

You need to use one of the X509Certificate2 constructors that are designed for PFX (aka pkcs#12) files. These take a password argument. In your original example, you were silently swallowing all exceptions so you missed the error.

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