secure-password-manager 1.10.1

A secure local password manager with strong encryption

🔐 Secure Password Manager

A cross-platform vault that stores, audits, and rotates secrets entirely on your device. The application ships with both a rich CLI and a PyQt5 GUI, leverages modern cryptography, and includes official browser extensions for secure credential autofill.

Feature Highlights

• End-to-end encryption with Fernet (AES-128 + HMAC) backed by PBKDF2-derived master keys and optional Argon2id/scrypt migration hooks.
• Dual interfaces: interactive terminal workflow (password-manager) and a full desktop client (password-manager-gui).
• Browser extensions for Chrome/Chromium (Manifest v3) and Firefox (Manifest v2) with secure pairing, credential autofill, and credential saving.
• Desktop approval system requiring explicit user approval for browser extension credential queries, with "remember this domain" feature and comprehensive audit logging.
• Browser bridge powered by FastAPI + uvicorn, issuing short-lived tokens to paired browser extensions over a localhost RPC channel with mandatory desktop approval prompts.
• Security automation including strength analysis, breach checks, duplicate detection, expirations, and actionable remediation guidance.
• Password history tracking all password changes with rotation metadata (manual, expiry, breach, strength), configurable retention, and detailed audit trails.
• Backup, restore, and export pipelines with integrity protection, versioned envelopes, and disaster-recovery tooling.
• Two-factor authentication (TOTP) with automatic clipboard clearing (configurable timeout, default 25 seconds) and planned OS-keyring / hardware token support.
• Flexible key management with a switchable master-password-derived mode, file-key fallback, and an interactive PBKDF2 benchmarking wizard that tunes iterations (default 390,000) and salt size per device.

Quickstart

# 1. Create and activate an isolated environment
python3 -m venv .venv
source .venv/bin/activate

# 2. Install the application in editable mode
pip install -e .

# 3. Initialize the database and set a master password
password-manager --init

# 4. Launch CLI or GUI
password-manager
password-manager-gui

Tip: The first run generates a .data/ directory (in development mode) or uses XDG directories (when installed) containing passwords.db, secret.key, crypto.salt, auth.json, and (if configured) totp_config.json. Keep these files private and back them up using the provided tooling.

Key Management & KDF Tuning

• Switch modes: In the CLI, visit Settings → Key management mode; in the GUI open the Settings tab and use the "Key Management Mode" card. Switching to the master-password-derived mode removes secret.key and re-encrypts the vault using a key derived each unlock.
• Benchmark PBKDF2: Run the "KDF tuning wizard" (CLI Settings → KDF tuning wizard, GUI Settings tab). The wizard measures the current CPU, recommends an iteration count for the target unlock time, and optionally rotates the salt size.
• Apply new parameters: When accepting the recommendation, the tool re-hashes auth.json, re-wraps any protected secret.key, and—if password-derived mode is active—re-encrypts every entry so the new parameters take effect immediately.
• Configuration storage: Selected mode, iteration targets, and salt metadata live in settings.json and crypto.salt. Backups include these files so restored environments preserve your hardening choices.

Browser Extensions

Official browser extensions for Chrome/Chromium and Firefox provide seamless credential autofill and secure credential storage directly from your web browser.

Features

• Secure Pairing: Pair with desktop app using 6-digit codes
• Auto-Fill: Click lock icon on password fields to fill credentials
• Save Credentials: Automatically prompts to save new logins
• Desktop Approval: All credential access requires explicit approval in desktop app
• Multi-Credential Selection: Choose from multiple entries when available
• Token-Based Auth: Secure communication with browser fingerprinting
• Multi-Browser: Chrome (Manifest v3) and Firefox (Manifest v2) support

Installation

Build and Load Extension:

cd browser-extension
./build-chrome.sh      # For Chrome/Chromium
./build-firefox.sh     # For Firefox
./build-all.sh         # Build both

Chrome: Load unpacked extension from browser-extension/build/chrome/ at chrome://extensions/

Firefox: Load temporary add-on from browser-extension/build/firefox/manifest.json at about:debugging

Usage

1. Enable Browser Bridge: In desktop app, enable Browser Bridge in Settings
2. Pair Extension: Click extension icon → "Pair with Desktop App" → Enter 6-digit code from desktop
3. Auto-Fill: Visit login page → Click 🔒 lock icon on password field → Approve in desktop app
4. Save: Fill form manually → Submit → Click "Save" in save prompt → Approve in desktop app

See browser-extension/README.md for detailed instructions.

See browser-extension/README.md for full documentation, troubleshooting, and API details.

Browser Bridge (Desktop API)

The local browser bridge service unlocks auto-fill and audit integrations with browser extensions. It is disabled by default; enable it from either interface:

1. CLI → Settings > Browser Bridge to toggle auto-start, launch/stop the service, and manage tokens.
2. GUI → Settings tab → "Browser Bridge" panel to flip the enable checkbox, monitor status, and generate pairing codes.

Once enabled, the FastAPI service binds to http://127.0.0.1:43110 (configurable via settings.json) and exposes the endpoints documented in docs/browser-extension-ipc.md. Pair new extensions by generating a 6-digit code; issued tokens are stored in browser_bridge_tokens.json under the config directory and can be revoked at any time from the same menus. When the feature is marked enabled, the CLI/GUI automatically starts the service on launch and shuts it down cleanly on exit.

Documentation Map

Audience	Read This
Everyone	docs/README.md
New users	docs/getting-started.md, docs/user-manual.md
Security reviewers	docs/security-whitepaper.md
Developers	docs/architecture-reference.md, docs/contributing.md
Operators & SRE	docs/operations-runbook.md, docs/background-jobs-observability.md
Builders	docs/build-release-handbook.md
Future integrations	docs/browser-extension-ipc.md
Roadmap	docs/roadmap.md & CHANGELOG.md

Support & Feedback

• File issues or feature requests via GitHub.
• Use the logs/password_manager.log file along with docs/operations-runbook.md when reporting problems.
• Security disclosures should follow the responsible reporting process described in docs/security-whitepaper.md.