Private key information from the smart card

The way of getting the private key information from the smart card when it supports Microsoft CryptoAPI

using System.Security.Cryptography.X509Certificates;

usingSystem.Security.Cryptography;

public static X509Certificate2GetSignedCertificate()

{

X509Certificate2signingCert = null;

var myStore = new X509Store(StoreName.My, StoreLocation.LocalMachine);

var smartCardCerts = new List<X509Certificate2>();

myStore.Open(OpenFlags.ReadOnly);

foreach (X509Certificate2 cert inmyStore.Certificates)

       {

if (!cert.HasPrivateKey) continue;          

var rsa = cert.PrivateKey as RSACryptoServiceProvider;

if (rsa == null) continue; 

if (rsa.CspKeyContainerInfo.HardwareDevice) 

{

signingCert = cert;

myStore.Close();

return signingCert;

}

        }

   return signingCert;

}