ssh-keygen

Generate, validate, and fingerprint SSH keypairs with secure file permissions.

Prerequisite Check

Run this before proposing key generation or conversion:

command -v ssh-keygen >/dev/null 2>&1 || ssh-keygen -V

If ssh-keygen is missing, surface that first and point to scripts/install.sh or scripts/install.ps1. Do not suggest manual key-file fabrication as a fallback.

Quick Start

1. Verify ssh-keygen is available: ssh-keygen -h or man ssh-keygen
2. Establish the command surface: man ssh-keygen or ssh-keygen -h
3. Start with key generation: ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519