C#

Get Issuer Certificate Information

See more Certificates Examples

A certificate contains information about its issuer. This example demonstrates how to get the issuer information from a certificate. C#

bool success = false;

Chilkat.Cert cert = new Chilkat.Cert();

success = cert.LoadFromFile("qa_data/certs/sample.cer");
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

//  Get issuer information:

//  -----------------------------------------------------------------------
//  (Not all subject fields may exist depending on the issuer certificate.)
//  -----------------------------------------------------------------------

//  Issuer DN (Distinguished Name, i.e. all the Issuer subject parts)
Debug.WriteLine("DN: " + cert.IssuerDN);

//  Common Subject parts:
//  Issuer Common Name
Debug.WriteLine("CN: " + cert.IssuerCN);

//  Issuer Country
Debug.WriteLine("C: " + cert.IssuerC);

//  Issuer Email address
Debug.WriteLine("E: " + cert.IssuerE);

//  Issuer Locality
Debug.WriteLine("L: " + cert.IssuerL);

//  Issuer Organization
Debug.WriteLine("O: " + cert.IssuerO);

//  Issuer Organizational Unit
Debug.WriteLine("OU: " + cert.IssuerOU);

//  Issuer State
Debug.WriteLine("S: " + cert.IssuerS);