Hardware TOTP authenticator with 8-layer security architecture (ESP32)
Summary
This open source project presents an ESP32 based hardware TOTP authenticator and offline password manager with BLE keyboard. It promotes defense-in-depth security across multiple layers, supports offline air-gapped operation and multiple deployment modes, and provides detailed hardware specs, web management, and security best practices. It is highly relevant for IT security and business use cases requiring robust, hardware-assisted 2FA and password management.