(Swift 2) PKCS11 Find All Certificates on Smart Card or USB Token

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Sample code showing how to examine all the certificates on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.88 or later.

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func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

    let pkcs11 = CkoPkcs11()

    // Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
    // or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
    pkcs11.SharedLibPath = "aetpkss1.dll"

    var success: Bool = pkcs11.Initialize()
    if success == false {
        print("\(pkcs11.LastErrorText)")
        return
    }

    // Pass -1 for the slotID to open a session on the first non-empty slot.
    var slotID: Int = -1

    // Open a session.
    var readWrite: Bool = true
    success = pkcs11.OpenSession(slotID, readWrite: readWrite)
    if success == false {
        print("\(pkcs11.LastErrorText)")
        return
    }

    // Make it an authenticated session by calling Login.
    // 
    // If we don't authenticate, then we won't be able to see the private keys, and thus
    // we won't know which certificates have an associated private key stored on the smart card.

    // The smart card PIN is passed to the Login method.
    // userType 1 indicates a "Normal User".
    var userType: Int = 1
    var pin: String? = "0000"
    success = pkcs11.Login(userType, pin: pin)
    if success == false {
        print("\(pkcs11.LastErrorText)")
        success = pkcs11.CloseSession()
        return
    }

    // Call FindAllCerts to find all certificates on the smart card or USB token.
    success = pkcs11.FindAllCerts()
    if success == false {
        print("\(pkcs11.LastErrorText)")
        success = pkcs11.CloseSession()
        return
    }

    // The NumCerts property is set by FindAllCerts.
    var numCerts: Int = pkcs11.NumCerts.intValue
    print("Number of certs: \(numCerts)")

    var privateKeyNote: String?
    let cert = CkoCert()
    var i: Int = 0
    while i < numCerts {
        pkcs11.GetCert(i, cert: cert)
        privateKeyNote = ""
        if cert.HasPrivateKey() == true {
            privateKeyNote = "(has private key)"
        }

        print("\(i): \(privateKeyNote!) \(cert.SubjectDN)")
        print("\(i): issuer: \(cert.IssuerDN)")
        print("----")
        i = i + 1
    }

    // Revert to an unauthenticated session by calling Logout.
    success = pkcs11.Logout()
    if success == false {
        print("\(pkcs11.LastErrorText)")
        success = pkcs11.CloseSession()
        return
    }

    // When finished, close the session.
    // It is important to close the session (memory leaks will occur if the session is not properly closed).
    success = pkcs11.CloseSession()
    if success == false {
        print("\(pkcs11.LastErrorText)")
        return
    }

    print("Success.")

}