System.Security.Principal 4.3.0

Provides the base interfaces for principal and identity objects that represents the security context under which code is running.

Commonly Used Types:

When using NuGet 3.x this package requires at least version 3.4.

Requires NuGet 2.12 or higher.

Install-Package System.Security.Principal -Version 4.3.0
dotnet add package System.Security.Principal --version 4.3.0
<PackageReference Include="System.Security.Principal" Version="4.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add System.Security.Principal --version 4.3.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

  • .NETCore 5.0

  • .NETFramework 4.5

    • No dependencies.
  • .NETStandard 1.0

  • MonoAndroid 1.0

    • No dependencies.
  • MonoTouch 1.0

    • No dependencies.
  • Portable Class Library (.NETFramework 4.5, Windows 8.0, WindowsPhone 8.0, WindowsPhoneApp 8.1)

    • No dependencies.
  • Windows 8.0

    • No dependencies.
  • WindowsPhone 8.0

    • No dependencies.
  • WindowsPhoneApp 8.1

    • No dependencies.
  • Xamarin.iOS 1.0

    • No dependencies.
  • Xamarin.Mac 2.0

    • No dependencies.
  • Xamarin.TVOS 1.0

    • No dependencies.
  • Xamarin.WatchOS 1.0

    • No dependencies.

NuGet packages (77)

Showing the top 5 NuGet packages that depend on System.Security.Principal:

Package Downloads
Provides classes for retrieving the current Windows user and for interacting with Windows users and groups. Commonly Used Types: System.Security.Principal.WindowsIdentity System.Security.Principal.SecurityIdentifier System.Security.Principal.NTAccount System.Security.Principal.WindowsPrincipal System.Security.Principal.IdentityReference System.Security.Principal.IdentityNotMappedException System.Security.Principal.WindowsBuiltInRole System.Security.Principal.WellKnownSidType When using NuGet 3.x this package requires at least version 3.4.
Provides classes that implement claims-based identity in the .NET Framework, including classes that represent claims, claims-based identities, and claims-based principals. Commonly Used Types: System.Security.Principal.GenericIdentity System.Security.Claims.Claim System.Security.Claims.ClaimsIdentity System.Security.Claims.ClaimsPrincipal System.Security.Principal.GenericPrincipal When using NuGet 3.x this package requires at least version 3.4.
Provides the data provider for SQL Server. These classes provide access to versions of SQL Server and encapsulate database-specific protocols, including tabular data stream (TDS) Commonly Used Types: System.Data.SqlClient.SqlConnection System.Data.SqlClient.SqlException System.Data.SqlClient.SqlParameter System.Data.SqlDbType System.Data.SqlClient.SqlDataReader System.Data.SqlClient.SqlCommand System.Data.SqlClient.SqlTransaction System.Data.SqlClient.SqlParameterCollection System.Data.SqlClient.SqlClientFactory When using NuGet 3.x this package requires at least version 3.4.
Provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure network communication between client and server endpoints. Commonly Used Types: System.Net.Security.SslStream System.Net.Security.ExtendedProtectionPolicy When using NuGet 3.x this package requires at least version 3.4.
Provides a means for interprocess communication through anonymous and/or named pipes. Commonly Used Types: System.IO.Pipes.NamedPipeServerStream System.IO.Pipes.PipeDirection System.IO.Pipes.PipeOptions System.IO.Pipes.PipeTransmissionMode System.IO.Pipes.NamedPipeClientStream System.IO.Pipes.PipeStream When using NuGet 3.x this package requires at least version 3.4.

GitHub repositories (13)

Showing the top 5 popular GitHub repositories that depend on System.Security.Principal:

Repository Stars
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
This repo is building the .NET Standard
This repository is for active development of the Azure SDK for .NET. For consumers of the SDK we recommend visiting our public developer docs at or our versioned developer docs at
Binding business requirements to .NET code
This repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.

Version History

Version Downloads Last updated
4.3.0 60,944,752 11/15/2016
4.3.0-preview1-24530-04 175,934 10/24/2016
4.0.1 104,748,759 6/27/2016
4.0.1-rc2-24027 2,461,815 5/16/2016
4.0.1-beta-23516 372,886 11/18/2015
4.0.1-beta-23409 367,549 10/15/2015
4.0.1-beta-23225 110,256 9/2/2015
4.0.0 1,798,240 7/29/2015
4.0.0-beta-23109 58,231 7/27/2015
4.0.0-beta-23019 49,133 6/30/2015
4.0.0-beta-22816 51,477 4/24/2015
4.0.0-beta-22605 17,039 2/13/2015
4.0.0-beta-22416 8,938 1/16/2015
4.0.0-beta-22231 29,618 11/11/2014