digital signature using c#.net code

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i hava starkey400 usb etoken.i import my certificate into this token. how i sign a document using this token certificate using c#.net

Posted 28-Jun-13 17:43pm

Rajesh VLND

Updated 28-Nov-17 18:12pm

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NarayananNG · Answer 1 · 2013-07-06T01:19:00

Dear Rajesh
when you connect your token on your computer, the driver utility itself export your certificate to windows certificate store. So you can access the certificate using X509Store namespace. please go through the sample code below.

X509Store my = new X509Store(StoreName.My, StoreLocation.CurrentUser);
my.Open(OpenFlags.ReadOnly);
RSACryptoServiceProvider csp = null;

foreach (X509Certificate2 cert in my.Certificates)
{
X509Certificate2 certificate = new X509Certificate2(cert);
txtRemarks.Text = certificate.GetExpirationDateString();
txtRemarks.Text =txtRemarks.Text + ' ' + certificate.GetIssuerName().ToString();
}