Yubikey

Name: Yubikey
Author: bytesagain

ASecurity

YubiKey hardware security key reference. Covers FIDO2 passkeys, U2F two-factor, TOTP authenticator codes, GPG smartcard for commit signing, ed25519-sk SSH keys, PIV certificates, ykman CLI, OTP slots, PIN management, and model comparison.

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Added September 7, 2026

toolsgitsecurity

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Scanned September 7, 2026

npx -y skills add bytesagain/ai-skills --skill yubikey --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md

---
name: yubikey
version: 1.0.0
description: >
  YubiKey hardware security key reference. Covers FIDO2 passkeys,
  U2F two-factor, TOTP authenticator codes, GPG smartcard for
  commit signing, ed25519-sk SSH keys, PIV certificates, ykman
  CLI, OTP slots, PIN management, and model comparison.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: [yubikey, security, fido2, passkey, gpg, ssh, 2fa]
---

# YubiKey Reference

Hardware security key.

## Commands

| Command | Description |
|---------|-------------|
| `intro` | Models, protocols |
| `setup` | Passkeys, TOTP, U2F |
| `advanced` | GPG, SSH, PIV |

Files in this skill

SKILL.md664 B
scripts/script.sh6.7 KB

Attribution

bytesagainView source See grades on GitHub More from bytesagain

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