Load Certificate from PFX (PKCS#12)

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

Download: Chilkat .NET Assemblies

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

bool success;

//  Load from the PFX file
string pfxFilename;
pfxFilename = "/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx";
string pfxPassword;
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) {
    textBox1.Text += cert.LastErrorText + "\r\n";
    return;
}

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

//  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";

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

privKey = cert.ExportPrivateKey();
if (privKey == null ) {
    textBox1.Text += cert.LastErrorText + "\r\n";
    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;
pemPassword = "secret";
string pemPath;
pemPath = "/Users/chilkat/testData/pem/chilkat_privKey.pem";
success = privKey.SavePkcs8EncryptedPemFile(pemPassword,pemPath);
if (success != true) {
    textBox1.Text += privKey.LastErrorText + "\r\n";

    return;
}

textBox1.Text += "Private key saved to PKCS8 Encrypted PEM..." + "\r\n";