PCSC.Reactive 6.0.0

.NET Standard 2.0
Install-Package PCSC.Reactive -Version 6.0.0
dotnet add package PCSC.Reactive --version 6.0.0
<PackageReference Include="PCSC.Reactive" Version="6.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add PCSC.Reactive --version 6.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: PCSC.Reactive, 6.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install PCSC.Reactive as a Cake Addin
#addin nuget:?package=PCSC.Reactive&version=6.0.0

// Install PCSC.Reactive as a Cake Tool
#tool nuget:?package=PCSC.Reactive&version=6.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

PC/SC wrapper classes for .NET


The pcsc-sharp library is wrapper that provides access to the Personal Computer/Smart Card Resource Manager using the system's native PC/SC API. It implements partial ISO7816 support and is written to run on both Windows and Unix (.Net Core or Mono using PCSC Lite).

pcsc-sharp is not a fully featured library for accessing vendor specific protocols. You must implement those protocols / applications yourself. For example: You can use pcsc-sharp to access NXP's Mirfare RFID chips, but pcsc-sharp does not provide any APDUs to request KEYs, authorize, etc.

pcsc-sharp does not contain any device drivers. A PC/SC compliant reader + driver is mandatory.

The GitHub issue tracker is not a support forum. Please contact your vendor for reader or card specific questions.

You can find PC/SC specific documentation here:

Supported Operating systems

  • Windows (winscard.dll)

    • Windows 10 64-bit Professional
    • Windows 10 32-bit Professional
    • Windows 7 64-bit
    • Windows 7 32-bit
  • Linux (PC/SC lite)

    • Ubuntu Linux 64-bit
    • Ubuntu Linux 32-bit
  • MacOS X

  • Raspberry Pi / Linux ARM

    • linux-arm

Quick start

Establish the resource manager context

Each operation requires a valid context. See SCardEstablishContext for more information.

var contextFactory = ContextFactory.Instance;
using (var context = contextFactory.Establish(SCardScope.System)) {
   // your code

Basic rules / best practices:

  • One context per smartcard / reader.
  • One context per SCardMonitor.
  • The context must be disposed of after usage to free system resources.
  • The context must not be disposed of if your application still accesses the smartcard / reader.

List all connected smartcard readers

See SCardListReaders.

var contextFactory = ContextFactory.Instance;
using (var context = contextFactory.Establish(SCardScope.System)) {
    Console.WriteLine("Currently connected readers: ");
    var readerNames = context.GetReaders();
    foreach (var readerName in readerNames) {
        Console.WriteLine("\t" + readerName);

Send ISO7816 APDUs

var contextFactory = ContextFactory.Instance;
using (var ctx = contextFactory.Establish(SCardScope.System)) {
    using (var isoReader = new IsoReader(ctx, "ACME Smartcard reader", SCardShareMode.Shared, SCardProtocol.Any, false)) {

        var apdu = new CommandApdu(IsoCase.Case2Short, isoReader.ActiveProtocol) {
            CLA = 0x00, // Class
            Instruction = InstructionCode.GetChallenge,
            P1 = 0x00, // Parameter 1
            P2 = 0x00, // Parameter 2
            Le = 0x08 // Expected length of the returned data

        var response = isoReader.Transmit(apdu);
        Console.WriteLine("SW1 SW2 = {0:X2} {1:X2}", response.SW1, response.SW2);
        // ..

Read reader attributes

using (var ctx = ContextFactory.Instance.Establish(SCardScope.System)) {
    using (var reader = ctx.ConnectReader("OMNIKEY CardMan 5x21 0", SCardShareMode.Shared, SCardProtocol.Any)) {
        var cardAtr = reader.GetAttrib(SCardAttribute.AtrString);
        Console.WriteLine("ATR: {0}", BitConverter.ToString(cardAtr));

Monitor reader events

var monitorFactory = MonitorFactory.Instance;
var monitor = monitorFactory.Create(SCardScope.System);

// connect events here..
monitor.StatusChanged += (sender, args) =>
    Console.WriteLine($"New state: {args.NewState}");

monitor.Start("OMNIKEY CardMan 5x21-CL 0");

Console.ReadKey(); // Press any key to exit


More example code

Checkout the Examples directory.

Build from source

Build status

Required software

Build tools

  • Fake, Please run:

    dotnet tool install fake-cli -g

    to install fake as global tool. On Linux you may have to add the following lines into your .profile or .bashrc file:

    if [ -d "$HOME/.dotnet/tools" ] ; then

pcsc-sharp uses the FAKE DSL for build tasks. To build the solution, run fake run build.fsx.

Build instructions for Raspberry Pi

Compile with

dotnet publish -r linux-arm
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
6.0.0 1,422 3/9/2022
5.1.0 325 12/6/2021
5.0.0 11,557 12/7/2019
4.2.0 3,243 7/3/2019
4.1.1 636 5/26/2019
4.1.0 387 5/26/2019
4.0.3 799 2/18/2019
4.0.2 528 2/4/2019
4.0.1 794 9/24/2018
4.0.0 8,655 2/25/2018
3.8.0 823 10/8/2017
3.7.0 789 6/22/2017
3.6.1 763 4/12/2017
3.6.0 898 11/18/2016
3.5.3 1,142 11/3/2016
3.5.2 959 11/2/2016
3.5.1 869 5/24/2016
3.5.0 908 4/19/2016