Arca Vision · machine representation
Technical briefings
Design rationale, threat models, and verification, written down.
Arca: A Secrets Manager with Engineered Deniability
Design Rationale, Threat Model, and Verification Methodology
ARCA-WP-001. Version 1.0. August 2026. 26 pages.
Public technical briefing for ARCA, an offline secrets manager for macOS and Windows. Covers threat model, vault cryptography, engineered deniability, and verification methodology, including honest limits.