HNS — Human Number Signature (PHP MVP)
V1 demo: signs SHA256(file) | timestamp with Ed25519. Your phrase stays private. Anyone can verify with the certificate.
1) Generate Public Key (optional)
Security Notes (V1)
- Use a long secret phrase (12+ random words). Avoid simple numbers like 11111.
- Don’t type your phrase on untrusted machines. Keyloggers defeat any system.
- For production: add per-user random salt, registry, key revocation, and trusted timestamping.