C#

SFTP use Cert's Private Key from PFX (.pfx/.p12)

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Demonstrates how to use the private key associated with a certificate from a .pfx/.p12 file. C#

bool success = false;

//  This example assumes the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

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

string pfxFilepath = "qa_data/pfx/my.pfx";
string pfxPassword = "secret";

//  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(pfxFilepath,pfxPassword);
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

//  Get the private key.  
Chilkat.PrivateKey privKey = new Chilkat.PrivateKey();
success = cert.GetPrivateKey(privKey);
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

string privKeyPem = privKey.GetPkcs8Pem();
if (privKey.LastMethodSuccess == false) {
    Debug.WriteLine(privKey.LastErrorText);
    return;
}

Chilkat.SshKey sshKey = new Chilkat.SshKey();
success = sshKey.FromOpenSshPrivateKey(privKeyPem);
if (success == false) {
    Debug.WriteLine(sshKey.LastErrorText);
    return;
}

//  Connect to an SSH/SFTP server
Chilkat.SFtp sftp = new Chilkat.SFtp();
success = sftp.Connect("sftp.example.com",22);
if (success == false) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

//  Authenticate with the SSH server using a username + private key.
//  (The private key serves as the password.  The username identifies
//  the SSH user account on the server.)
success = sftp.AuthenticatePk("mySshLogin",sshKey);
if (success == false) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

Debug.WriteLine("OK, the connection and authentication with the SSH server is completed.");

//  This example is only to show the connection + authentication using a private key associated with a certificate in the Windows certificate store...