Heiko Luxenhofer

// Turning buzzwords into real-world solutions—without the buzz

Heiko Luxenhofer

Welcome to heikoluxenhofer.dev — my technical blog where I share insights and deep dives into software engineering topics.

Latest article

ChecksumVerify: One Right-Click to Verify Your Downloads
DotnetC#WindowsSecurityWinui3

ChecksumVerify: One Right-Click to Verify Your Downloads

A small open-source Windows tool that checks a download's checksum from the right-click menu. This post covers why checksums matter and how the tool is built with .NET and WinUI 3.

·13 min read
Securing .NET MCP Servers: API Keys, Microsoft Entra ID, and Agent Governance
DotnetC#McpSecurityAspire

Securing .NET MCP Servers: API Keys, Microsoft Entra ID, and Agent Governance

A tour of a real .NET Aspire MCP server repo — API key auth, scope- and role-based Entra ID authorization per tool, an on-behalf-of downstream API call, and policy-driven agent governance.

·23 min read