AAuth 0.1.0-alpha.1

This is a prerelease version of AAuth.

There is a newer prerelease version of this package available.
See the version list below for details.

dotnet add package AAuth --version 0.1.0-alpha.1

NuGet\Install-Package AAuth -Version 0.1.0-alpha.1

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="AAuth" Version="0.1.0-alpha.1" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="AAuth" Version="0.1.0-alpha.1" />
                    

                            Directory.Packages.props

<PackageReference Include="AAuth" />
                    

                            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 AAuth --version 0.1.0-alpha.1

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: AAuth, 0.1.0-alpha.1"

#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 AAuth@0.1.0-alpha.1

#: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=AAuth&version=0.1.0-alpha.1&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=AAuth&version=0.1.0-alpha.1&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Getting Started

Prerequisites

.NET 10+ SDK

Install

dotnet add package AAuth

Or, if working within this repository, add a project reference:

dotnet add reference src/AAuth/AAuth.csproj

Generate a Key

using AAuth.Crypto;

var key = AAuthKey.Generate(); // Ed25519 keypair
var publicJwk = key.ToPublicJwk(); // Export for registration
var thumbprint = key.ComputeJwkThumbprint(); // JWK thumbprint (S256)

Make Your First Signed Request

The simplest mode is pseudonymous (HWK) — no Agent Provider needed:

using AAuth.Crypto;
using AAuth.HttpSig;

var key = AAuthKey.Generate();

using var client = new AAuthClientBuilder(key)
    .UseHwk()
    .Build();

var response = await client.GetAsync("https://resource.example/data");
// Request is signed with HTTP Message Signatures (RFC 9421)
// Resource sees: Signature-Key: sig=hwk;jkt="<thumbprint>"

Alternative: One-liner with static factory

using var client = AAuthSigningHandler.CreateClient(key, new HwkSignatureKeyProvider(key));

Alternative: DI / IHttpClientFactory

// In Program.cs
builder.Services.AddAAuthClient("agent", options =>
{
    options.Key = key;
    options.SigningMode = new HwkSignatureKeyProvider(key);
});

// Inject via IHttpClientFactory
public class MyService(IHttpClientFactory factory)
{
    private readonly HttpClient _client = factory.CreateClient("agent");
}

What Just Happened?

AAuthKey.Generate() created an Ed25519 keypair.
AAuthClientBuilder configured the HWK signing mode and produced an HttpClient.
AAuthSigningHandler signs the request per RFC 9421 covering @method, @authority, @path, and signature-key.
The resource verifies the signature and sees a pseudonymous key thumbprint.

Next Steps

Signing Modes Overview — choose the right mode for your use case
Identity-Based Access — simplest workflow
PS-Asserted Access — full authorization flow
Protocol Concepts — understand the full picture

Protocol Reference

Explore the interactive protocol specification at https://explorer.aauth.dev/.

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.

net10.0
- BouncyCastle.Cryptography (>= 2.6.2)
- Microsoft.IdentityModel.Tokens (>= 8.18.0)

NuGet packages (2)

Showing the top 2 NuGet packages that depend on AAuth:

Package	Downloads
AAuth.R3 Experimental AAuth Rich Resource Requests (R3) preview helpers — vocabulary-agnostic operations (OpenAPI, MCP, …). Depends on AAuth.	160
AAuth.Events AAuth Events companion token, subscription and delivery contracts.	60

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
0.10.0-alpha.1	59	9/10/2026
0.8.0-alpha.4	89	7/3/2026
0.8.0-alpha.3	89	6/29/2026
0.8.0-alpha.2	77	6/28/2026
0.8.0-alpha.1	77	6/27/2026
0.2.0-alpha.2	78	6/27/2026
0.2.0-alpha.1	77	6/10/2026
0.1.0-alpha.12	309	6/7/2026
0.1.0-alpha.11	66	6/3/2026
0.1.0-alpha.10	76	6/1/2026
0.1.0-alpha.9	65	5/31/2026
0.1.0-alpha.8	73	5/28/2026
0.1.0-alpha.7	66	5/27/2026
0.1.0-alpha.6	78	5/27/2026
0.1.0-alpha.5	78	5/26/2026
0.1.0-alpha.4	67	5/25/2026
0.1.0-alpha.3	70	5/24/2026
0.1.0-alpha.2	59	5/23/2026
0.1.0-alpha.1	74	5/23/2026