Nu11VLT

Zero-knowledge photo and note vault for iOS with ChaCha20-Poly1305 encryption.

🌐 dro1d.org/nu11vlt.html | 📄 Technical Specs

Features

• ChaCha20-Poly1305 encryption (256-bit keys)
• NIST SP 800-88 secure wipe (single-pass random overwrite)
• Skeleton Switch auto-wipe after configurable inactivity
• Dual archive modes: Portable (AES-256) or Secure (double encryption)
• Backup PIN for duress/plausible deniability
• Face ID/Touch ID + optional PIN authentication
• Self-destructing "Fade" storage
• Local-only storage (no cloud sync)

Security

Encryption Stack

• On-device: ChaCha20-Poly1305 AEAD
• Archive: AES-256-GCM with Argon2id key derivation
• Keys: iOS Keychain (Secure Enclave)

Threat Model

✓ Physical theft, forensic recovery, unauthorized access, forced unlock, extended seizure
✗ Jailbroken devices, iOS zero-days, weak passwords

See THREAT_MODEL.md for detailed analysis.

Documentation

• ARCHITECTURE.md - System architecture and data flow
• ENCRYPTION.md - Encryption implementation details
• SECURE_WIPE.md - Secure wipe process
• SKELETON_SWITCH.md - Auto-wipe system
• BACKUP_PIN.md - Plausible deniability feature
• THREAT_MODEL.md - Complete threat assessment
• COMPARISONS.md - Nu11VLT vs alternatives
• FAQ.md - Frequently asked questions

Standards

• ChaCha20-Poly1305: IETF RFC 8439
• AES-256-GCM: NIST FIPS 197
• Argon2id: RFC 9106
• Secure Wipe: NIST SP 800-88 Rev. 1

Requirements

iOS 18.0+

License

Copyright © 2025-2026. All rights reserved.

This repository contains documentation only. Source code is proprietary.