(.NET Core 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.

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

bool 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);