#Key Management
2 articles
Workflow

Building a Graph API Page App with Three Required Endpoints
When a backend needs to read and reply to Page messages on its own, the only proper route is to build an app and pass the platform's review. This article covers three endpoints the platform requires but people forget until they fail review, the correct way to verify incoming request signatures, and the steps to exchange a short-lived token for a Page token stored outside the web root.

Create .ppk Files for plink/pscp on Windows Without Opening puttygen
puttygen.exe on Windows is GUI-only and cannot batch-convert OpenSSH to .ppk (it returns unrecognised option) — this article writes PPK v3 files directly with Python, including the hard-to-find HMAC-SHA-256 MAC formula, ready to use with plink/pscp/WinSCP.