Kck.Security.Jwt 3.4.0

dotnet add package Kck.Security.Jwt --version 3.4.0
                    
NuGet\Install-Package Kck.Security.Jwt -Version 3.4.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Kck.Security.Jwt" Version="3.4.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Kck.Security.Jwt" Version="3.4.0" />
                    
Directory.Packages.props
<PackageReference Include="Kck.Security.Jwt" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Kck.Security.Jwt --version 3.4.0
                    
#r "nuget: Kck.Security.Jwt, 3.4.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Kck.Security.Jwt@3.4.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Kck.Security.Jwt&version=3.4.0
                    
Install as a Cake Addin
#tool nuget:?package=Kck.Security.Jwt&version=3.4.0
                    
Install as a Cake Tool

Kck.Security.Jwt

RS256-signed JWT ITokenService using RSA key pairs — generates and validates access tokens with configurable expiry and key source options.

Installation

dotnet add package Kck.Security.Jwt

Quick Start

// Program.cs
builder.Services.AddKckJwt(options =>
{
    options.Issuer = "https://myapp.com";
    options.Audience = "api://myapp";
    options.AccessTokenExpiration = TimeSpan.FromMinutes(15);
    options.KeySource = RsaKeySource.Configuration;
    options.RsaKeyBase64 = Environment.GetEnvironmentVariable("JWT_RSA_KEY")!;
});

// Generate and validate tokens
public class AuthService(ITokenService tokens)
{
    public async Task<string> LoginAsync(User user, CancellationToken ct)
    {
        var claims = new[] { new Claim(ClaimTypes.NameIdentifier, user.Id.ToString()) };
        return await tokens.GenerateAsync(claims, ct);
    }
}

Configuration

Property Description Default
Issuer JWT iss claim value required
Audience JWT aud claim value required
AccessTokenExpiration Token lifetime TimeSpan.FromMinutes(15)
KeySource Configuration, File, or SecretsManager Configuration
RsaKeyBase64 Base64-encoded RSA private key PEM required if Configuration
RsaKeyPath Path to RSA private key PEM file required if File

Resources

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Kck.Security.Jwt:

Package Downloads
Kck.Bundle.WebApi

Opinionated ASP.NET Core WebAPI starter pack. Registers Serilog, in-memory caching, JWT auth, Argon2 hashing, InMemory event bus, OpenTelemetry, rate limiting, security headers, CORS, and global exception handling in a single AddKckWebApiDefaults() call.

Kck.Bundle.MinimalApi

Lightweight ASP.NET Core Minimal API starter pack. Slim variant of the WebAPI bundle — provides Serilog, in-memory caching, JWT, exception handling, and health checks without MediatR pipeline or Argon2 overhead.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
3.4.0 112 5/17/2026
3.3.0 109 5/17/2026
3.2.0 108 5/17/2026
3.1.0 117 5/17/2026
3.0.0 110 5/17/2026
2.0.0 115 5/7/2026