Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

Download: Chilkat .NET Assemblies

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

bool success;

//  LoadFromFile will load virtually any certificate format file.
//  It will auto-recognize the format and load appropiately.
//  A base64-encoded DER X.509 certificate file
//  contains the binary DER in base64 encoded form.
//  Therefore, it is a text file that will begin like this:
//  -----BEGIN CERTIFICATE-----
//  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
//  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
//  ...

success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat_base64.cer");
if (success != true) {
    textBox1.Text += cert.LastErrorText + "\r\n";
    return;
}

//  DN = "Distinguished Name"
textBox1.Text += "SubjectDN:" + cert.SubjectDN + "\r\n";

textBox1.Text += "Common Name:" + cert.SubjectCN + "\r\n";
textBox1.Text += "Issuer Common Name:" + cert.IssuerCN + "\r\n";

textBox1.Text += "Serial Number:" + cert.SerialNumber + "\r\n";