SecurePDF takes security seriously. This document outlines our security practices and how to report vulnerabilities.

SecurePDF implements state-of-the-art cryptography:

• Encryption: AES-256-GCM (authenticated encryption)
• Key Derivation: PBKDF2 with minimum 100,000 iterations
• Digital Signatures: RSA-PSS with SHA-3-256
• Random Generation: Cryptographically secure random (CSPRNG)

Unlike traditional PDF:

• No JavaScript execution
• No PostScript interpretation
• No embedded executables
• Pure JSON data format

All inputs are strictly validated:

• JSON Schema validation for document structure
• Content sanitization for all text fields
• File size limits to prevent DoS attacks
• MIME type verification for uploads

🔒 CRITICAL: Do NOT report security vulnerabilities through public GitHub issues!

Send security reports to: security@secure-pdf.org

Include in your report:

1. Description of the vulnerability
2. Steps to reproduce the issue
3. Proof of concept (if applicable)
4. SPDF document demonstrating the issue (if safe)
5. Your contact information

1. Acknowledgment: Within 24 hours
2. Initial Assessment: Within 72 hours
3. Status Updates: Weekly until resolved
4. Resolution: Target within 30 days for critical issues

• Day 0: Vulnerability reported
• Day 1-3: Initial assessment and acknowledgment
• Day 7-30: Fix development and testing
• Day 30+: Public disclosure after fix deployment

• Encryption at Rest: All sensitive content encrypted
• Digital Signatures: Cryptographic proof of authenticity
• Audit Trail: Immutable record of all changes
• Permission Controls: Granular access restrictions

• Memory Safety: TypeScript prevents many common vulnerabilities
• Input Sanitization: All external data validated
• Error Handling: No information leakage in error messages
• Secure Defaults: Conservative security settings by default

• Dependency Scanning: Regular security audits of dependencies
• Code Reviews: All security-critical code peer-reviewed
• Automated Testing: Security tests in CI/CD pipeline
• Static Analysis: SAST tools integrated in development

1. Certificate Validation: Demo uses self-signed certificates
2. Key Storage: Production needs proper HSM integration
3. Network Transport: HTTPS required for sensitive documents
4. Browser Sandbox: Viewer inherits browser security model

1. Use trusted Certificate Authorities in production
2. Implement proper key management systems
3. Always use TLS 1.3+ for document transmission
4. Keep browsers updated for latest security patches

// ✅ Good: Validate all inputs
const validator = new SpdfValidator();
if (!validator.validate(document)) {
    throw new SecurityError('Invalid document structure');
}

// ❌ Bad: Trust user input
const content = document.content; // No validation

• Strong Passwords: Use complex passwords for encrypted documents
• Verify Signatures: Always check digital signatures before trusting
• Update Software: Keep SecurePDF tools updated
• Secure Storage: Store private keys securely

• Network Security: Use HTTPS/TLS for all communications
• Access Controls: Implement proper authentication/authorization
• Monitoring: Log and monitor document access patterns
• Backup Security: Encrypt backups and test recovery procedures

• Hardware Security Module (HSM) support
• Multi-signature workflows
• Enhanced audit logging
• Certificate Authority integration

• Zero-knowledge proofs for privacy
• Quantum-resistant algorithms preparation
• Advanced threat detection
• Automated security scanning

We're planning to launch a bug bounty program. Details coming soon!

Scope: Core cryptographic implementations, parser vulnerabilities, authentication bypasses

Rewards: To be determined based on severity

We thank the security community for helping make SecurePDF more secure:

• OWASP Secure Coding Practices
• NIST Cryptographic Standards
• Common Vulnerabilities and Exposures (CVE)

Remember: Security is everyone's responsibility. When in doubt, ask!