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SECURITY.md

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Security Policy for PasswordSentinel

Security Disclaimer

PasswordSentinel is a demonstration project intended for educational purposes. While I do my best to implement modern security practices including AES-GCM encryption, users should be aware that this is not intended to be a primary password management solution. For sensitive data, please use established, professionally audited password managers.

Current Security Features

  • ✅ AES-GCM 256-bit encryption for stored passwords
  • ✅ Secure key generation using Web Crypto API
  • ✅ Protected local storage with encryption
  • ✅ Secure error handling for cryptographic operations
  • ✅ Modern password strength evaluation

Known Limitations

  • Encryption key stored in browser local storage
  • No master password protection yet
  • Client-side only security implementation
  • Password generation uses Web Crypto API but could be further strengthened
  • No automatic session timeout

Reporting a Vulnerability

We take security vulnerabilities seriously. If you discover a security vulnerability within PasswordSentinel, please follow these steps:

  1. Do Not disclose the vulnerability publicly until it has been addressed.
  2. Send details of the vulnerability to [email protected]
  3. Include the following information:
    • Type of vulnerability
    • Steps to reproduce
    • Potential impact
    • Suggested fixes (if any)

What to expect:

  • Acknowledgment of your report within 48 hours
  • Regular updates on the progress of addressing the vulnerability
  • Credit for responsible disclosure (if desired)

Response Timeline

  • 24-48 hours: Initial acknowledgment of report
  • 1 week: Assessment of vulnerability
  • 2-4 weeks: Implementation of fix (depending on severity)
  • Post-fix: Public disclosure and credit (if appropriate)

Security Best Practices

When using PasswordSentinel, please follow these security guidelines:

  1. Do not use this tool for storing highly sensitive passwords
  2. Regularly clear your browser's local storage
  3. Use a secure, up-to-date browser
  4. Be cautious when using on public or shared computers
  5. Enable your browser's security features
  6. Keep your operating system and browser updated

Security Features Implementation Status

  • Encrypted local storage using AES-GCM
  • Master password protection
  • Secure key generation
  • Secure clipboard operations
  • Auto-clear clipboard
  • Session timeout
  • Export/import encryption
  • Password strength evaluation
  • Secure error handling

Technical Security Details

Encryption Implementation

  • Algorithm: AES-GCM (256-bit)
  • Key Generation: Web Crypto API
  • Storage: Encrypted data with IV in local storage
  • Error Handling: Graceful fallback with secure error messages

Password Generation

  • Character set customization
  • Minimum length enforcement
  • Strength evaluation algorithms
  • Visual strength indicators

Third-Party Dependencies

Currently, PasswordSentinel uses minimal external dependencies:

  • HTML5
  • CSS3
  • Vanilla JavaScript
  • Web Crypto API (built-in browser feature)

Updates to Security Policy

This security policy may be updated from time to time. Please check back regularly to stay informed of any changes.

Contact

For security concerns, please contact:

Attribution

This security policy is adapted from standard security policy templates and modified for the specific needs of PasswordSentinel.


Last updated: October 29, 2024