Mono Blog https://allendev.net/blog Blog about Microsoft technologies (.NET, ASP.NET Core, Blazor, EF Core, WPF, TypeScript, etc.) en-us zzyliu71@gmail.com (Allen Liu) zzyliu71@gmail.com (Allen Liu) Thu, 23 Jan 2025 00:00:00 GMT https://allendev.net/blog/2025-01-23-captcha Implementing a Custom Captcha Generator in ASP.NET Core Without Third-Party Libraries https://allendev.net/blog/2025-01-23-captcha A practical guide to creating random captcha images in .NET applications without external dependencies. This solution leverages System.Drawing.Common for image manipulation and provides full control... Thu, 23 Jan 2025 00:00:00 GMT zzyliu71@gmail.com (Allen Liu) .NET.NET CoreCaptcha