PKOC.Net

PKOC.Net is a NET implementation of the Public Key Open Credential (PKOC) using Open Supervised Device Protocol (OSDP) for ACUs. The OSDP.Net library is used to allow the Access Control Unit (ACU) the ablity to process and validate PKOC issued credentials. The PKOC specification details can be found on the PSIA PKOC hompage. The OSDP messages are defined on the following GitHub page.

Getting Started

The PKOC.Net library provides a Nuget package to quickly add PKOC over OSDP capability to a .NET Framework or Core project. You can install it using the NuGet Package Console window:

PM> Install-Package PKOC.Net

There is a dependecy on OSDP.Net for handling OSDP communications. See OSDP.Net README for information regarding the use of this library.

There is a separate PKOC control panel for interfacing with PKOC related transactions. To start, create a PKOCControl panel object that includes a reference to the OSDP.Net control panel object. Each device needs a persistent PKOCDevice object to track the PKOC related transactions.

var panel = new ControlPanel();
var pkocPanel = new PKOCControlPanel(panel);

var connectionId = panel.StartConnection(new SerialPortOsdpConnection(portName, baudRate));
PKOCDevice? pkocDevice = null;

panel.ConnectionStatusChanged += (_, eventArgs) =>
{
    if (!eventArgs.IsConnected) return;
    
    Console.WriteLine("The OSDP reader is connected and will attempt to initialize for PKOC.");

    Task.Run(async () =>
    {
        pkocDevice = new PKOCDevice(eventArgs.ConnectionId, eventArgs.Address);
        bool successfulInitialization = await pkocPanel.InitializePKOC(pkocDevice);
        Console.WriteLine(successfulInitialization
            ? "The OSDP reader has been successfully initialized for PKOC."
            : "The OSDP reader has not been successfully initialized for PKOC.");
    });
};

pkocPanel.CardPresented += (_, eventArgs) =>
{
    Console.WriteLine("A PKOC card has been presented to the reader.");

    if (eventArgs.CardPresentResponseData.Error is not { Length: 0 })
    {
        Console.WriteLine("An error occured while a PKOC card has been presented to the reader.");
    }

    Task.Run(async () =>
    {
        var result = await pkocPanel.AuthenticationRequest(pkocDevice);
        Console.WriteLine(result.IsValidSignature() ? "Valid credential found" : "Invalid credential found");
    });
};

pkocPanel.ReaderErrorReported += (_, _) =>
{
    Console.WriteLine("An error occured while a PKOC card has been presented to the reader.");
};

panel.AddDevice(connectionId, deviceAddress, true, false);

Documentation

Online API documentation can be found here.

Contributing

Contact me through my consulting company Z-bit System, LLC, if interested in further collaboration with the PKOC.Net library.