C#里面怎么读证书里的公钥和私钥？

Question

check out System.Security.Cryptography.X509Certificates.X509Certificate

Answer 1

Here is a small example. You need to download WSH sdk from microsoft to get X509CertificateStore support.using System;
using System.Security.Cryptography;
using System.Text;
using Microsoft.Web.Services.Security.X509;
......public static string decrypt(byte[] content)
{
X509CertificateStore store =  X509CertificateStore.CurrentUserStore( X509CertificateStore.MyStore );
store.OpenRead();
X509Certificate receiver = (X509Certificate)store.Certificates[0];
string receiver_serial = receiver.GetName();
Console.WriteLine(" name :"+receiver_serial);
RSAParameters receiver_private = receiver.Key.ExportParameters( true );
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.ImportParameters( receiver_private ); 
byte[] cipher = rsa.Decrypt(content, false );
string cleartext = ASCIIEncoding.ASCII.GetString(cipher);
return cleartext;
}
public static byte[] encrypt(string text)
{
X509CertificateStore store =  X509CertificateStore.CurrentUserStore( X509CertificateStore.MyStore );
store.OpenRead();
X509Certificate receiver = (X509Certificate)store.Certificates[0];
string receiver_serial = receiver.GetName();
Console.WriteLine(" name :"+receiver_serial);
RSAParameters receiver_public = receiver.Key.ExportParameters( false );
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.ImportParameters( receiver_public ); 
byte[] cleartext = ASCIIEncoding.ASCII.GetBytes(text);
byte[] cipher = rsa.Encrypt( cleartext, false );
return cipher;
} public static void Main()
{
byte[] content = encrypt("hello world!");
    Console.WriteLine(decrypt(content)); 
}

Answer 2

a correction:
  Should be WSE (web services enhancements)

Answer 3

非常感谢jennyq_zq
我装了WSE1.0和2.0，但不知道是不是因为版本冲突（我的.NET是中文版，WSE只有英文版的），在Microsoft的命名空间里没有web？