# Vrf Auditor

> Audit Verifiable Random Function implementations (RFC 9381 ECVRF and RSA-FDH-VRF) for key validation, ciphersuite/suite-string domain separation, encode-to-curve and cofactor handling, proof-to-hash ordering, and uniqueness/pseudorandomness assumptions, plus application-level output grinding. Use when reviewing VRF provers, verifiers, or consumers of VRF outputs (leader election, lotteries, randomness beacons).

- Skill: `yue-zhou1/vrf-auditor` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yue-zhou1/vrf-auditor`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yue-zhou1/vrf-auditor/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: Yue-Zhou1 (https://skillmd.com/u/yue-zhou1)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yue-zhou1/vrf-auditor

---


This file is a Codex skill discovery stub.

Canonical skill source:
`plugins/protocol-auditors/skills/vrf-auditor/SKILL.md`

When this skill is selected, follow the canonical source file above.