YMJake.FusionCaptcha.ClickSelectionCaptcha 1.1.2

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package YMJake.FusionCaptcha.ClickSelectionCaptcha --version 1.1.2
                    


                    

                
NuGet\Install-Package YMJake.FusionCaptcha.ClickSelectionCaptcha -Version 1.1.2
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="YMJake.FusionCaptcha.ClickSelectionCaptcha" Version="1.1.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="YMJake.FusionCaptcha.ClickSelectionCaptcha" Version="1.1.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="YMJake.FusionCaptcha.ClickSelectionCaptcha" />
                    


                            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 YMJake.FusionCaptcha.ClickSelectionCaptcha --version 1.1.2
                    


                    

                
#r "nuget: YMJake.FusionCaptcha.ClickSelectionCaptcha, 1.1.2"
#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 YMJake.FusionCaptcha.ClickSelectionCaptcha@1.1.2
#: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=YMJake.FusionCaptcha.ClickSelectionCaptcha&version=1.1.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=YMJake.FusionCaptcha.ClickSelectionCaptcha&version=1.1.2
                    


                            Install as a Cake Tool

FusionCaptcha

FusionCaptcha is a .NET captcha toolkit focused on three maintained modules:

  • PowCap (Proof-of-Work challenge)
  • SlideCaptcha (slider puzzle)
  • ClickSelectionCaptcha (ordered click selection)

The repository is intentionally scoped to these three modules for lower maintenance cost.

Packages

Package Description
YMJake.FusionCaptcha.Abstractions Core contracts and shared models
YMJake.FusionCaptcha.Core Base rendering pipeline and DI extensions
YMJake.FusionCaptcha.PowCap PoW challenge server and token verification
YMJake.FusionCaptcha.SlideCaptcha Slider captcha generation and validation
YMJake.FusionCaptcha.ClickSelectionCaptcha Click-selection captcha generation and validation

Rendering Status

  • FusionCaptcha.Core uses VelloSharp + NetVips for base text captcha rendering.
  • FusionCaptcha.SlideCaptcha and FusionCaptcha.ClickSelectionCaptcha currently still use SkiaSharp in production paths.
  • Full rendering unification is planned and will be done incrementally to avoid regressions in slider/click puzzle behavior.

Storage Model

  • The project now uses IDistributedCache directly for captcha state.
  • For single-node/local runs, register builder.Services.AddDistributedMemoryCache();.
  • For multi-node production, register a distributed provider such as Redis (for example AddStackExchangeRedisCache(...)).

Quick Start (Minimal API)

See sample: samples/FusionCaptcha.MinimalApi

dotnet run --project samples/FusionCaptcha.MinimalApi

Default endpoints:

  • GET /slide
  • POST /slide/validate
  • GET /point
  • POST /point/validate
  • GET /captcha
  • POST /captcha/validate
  • POST /cap/validate
  • MapPowCapEndpoints() mounted routes

Sample Frontend

samples/captcha.web now contains only three tabs:

  • Slider Puzzle
  • Click Selection
  • PoW (CAP)

Run:

cd samples/captcha.web
npm install
npm run dev

Notes

  • Core image processing has been migrated away from ImageSharp.
  • Deprecated/experimental modules have been removed from maintenance scope.
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  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

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
1.1.2 73 5/6/2026
1.1.1 713 12/3/2025
1.1.0 689 12/3/2025