(.NET Core C#) Load Certificate from PFX (PKCS#12)

Loads a digital certificate (and private key, if available) from a PFX file.(also known as PKCS#12)

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

bool success;

// Load from the PFX file
string pfxFilename = "/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx";
string pfxPassword = "test";

// A PFX typically contains certificates in the chain of authentication.
// The Chilkat cert object will choose the certificate w/
// private key farthest from the root authority cert.
// To access all the certificates in a PFX, use the 
// Chilkat certificate store object instead.
success = cert.LoadPfxFile(pfxFilename,pfxPassword);
if (success != true) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

// Get some information about the digital certificate, 
// then get the private key...

// DN = "Distinguished Name"
Debug.WriteLine("SubjectDN:" + cert.SubjectDN);

Debug.WriteLine("Common Name:" + cert.SubjectCN);
Debug.WriteLine("Issuer Common Name:" + cert.IssuerCN);

Debug.WriteLine("Serial Number:" + cert.SerialNumber);

// Now for the private key...
Chilkat.PrivateKey privKey = null;

privKey = cert.ExportPrivateKey();
if (cert.LastMethodSuccess == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

// The private key object may be used in any Chilkat methods
// (in other objects/classes) that expect a private key argument.

// In this case, save the private key to a PKCS8 Encrypted PEM format file:
string pemPassword = "secret";
string pemPath = "/Users/chilkat/testData/pem/chilkat_privKey.pem";
success = privKey.SavePkcs8EncryptedPemFile(pemPassword,pemPath);
if (success != true) {
    Debug.WriteLine(privKey.LastErrorText);

    return;
}

Debug.WriteLine("Private key saved to PKCS8 Encrypted PEM...");