EntropyX Nexus Advanced Compression

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 EntropyX: Nexus implements enterprise-grade security controls designed to protect organizational data and ensure safe multi-user file processing. The following technical features are built into the platform:

File Processing Security:

• File Type Validation: Strict whitelist of 20+ supported extensions (.docx, .txt, .csv, .json, .xlsx, .png, .jpg, .jpeg, .mp3, .mp4, .zip, .heic, .heif, .pdf, .iso, .tiff, .tif, .cr2, .nef, .arw, .dng, .dcm, .fits, .dpx, .sql) with comprehensive MIME type verification
• Size Limits: 500MB maximum per file with absolute security threshold enforcement
• Path Sanitization: Automatic removal of dangerous characters, path traversal prevention, and Windows reserved name blocking (CON, PRN, AUX, etc.)
• Input Validation: Real-time filename sanitization using sanitizeInput() function with HTML entity filtering
• Security Manager: Centralized SecurityManager class with validateFilePath(), validateFileSize(), and sanitizeFilename() methods
• Machine Hash Generation: Unique computer identification using platform, architecture, hostname, and user information for license binding

Authentication & Access Control:

• Multi-User System: Role-based access control (USER/ADMIN) with bcrypt password hashing (12 salt rounds)
• Session Management: UUID-based session IDs with configurable timeouts (default: 1 hour) and automatic expiration
• Brute Force Protection: Configurable maximum login attempts (5 default) with 15-minute lockout periods
• Password Policy: Minimum 8 characters with uppercase, lowercase, number, and special character requirements
• License Validation: Machine-bound license keys with SHA-256 checksum verification and database tracking

Database Security & Encryption:

• Database Encryption: Full Fernet-based encryption for all SQLite databases with transparent operation
• Key Management: Secure key storage in .entropy_key files with PBKDF2 derivation (100,000 iterations)
• Encrypted Database Manager: Automatic encryption/decryption with temporary file handling and cleanup
• Connection Management: Encrypted database wrapper class with automatic re-encryption on modification
• Multi-Database Support: Separate encrypted databases for accounts, licenses, and analytics with independent security

Network & Communication Security:

• IPC Security: Secure Inter-Process Communication between Electron main and renderer processes
• Input Sanitization: Comprehensive validation of all IPC message parameters and database queries
• SQL Injection Prevention: Parameterized queries using executeQuery() wrapper with strict validation
• Content Security Policy: Restrictive CSP headers preventing XSS and code injection attacks
• External URL Validation: Controlled external link opening with security verification

Comprehensive Audit System:

• Triple-Tier Logging: Application logs (EntropyXNexus.log), security analytics database, and compression analytics
• Security Event Tracking: LOGIN_FAILED, LOGIN_DISABLED_ACCOUNT, LOGIN_INVALID_PASSWORD, USER_LOGIN, USER_LOGOUT events
• Analytics Integration: Real-time security monitoring with LoggingManager and AnalyticsEngine classes
• Audit Trail Integrity: SHA-256 verification for tamper detection and comprehensive metadata tracking
• Session Correlation: Complete operation tracking with session IDs and user attribution

Enterprise Management:

• Centralized Configuration: Configurable database directories with validation and connection testing
• Directory Scanner Security: Path validation, exclusion rule enforcement, and permission checking
• Backup & Recovery: Automated database backup with encryption key preservation
• Admin Controls: Database encryption/decryption tools with secure key management
• Compliance Features: Detailed logging, user activity tracking, and audit report generation

Application Security:

• Process Isolation: Secure subprocess execution for FFmpeg with timeout enforcement and error handling
• Resource Management: Automatic cleanup of temporary files and database connections
• Error Sanitization: Controlled error messages preventing information disclosure
• Security Scanning: Built-in system integrity checks and vulnerability assessment
• Defense in Depth: Multiple validation layers for all user-supplied input with zero-trust architecture

Note: These technical security features provide the foundation for enterprise compliance frameworks. Full regulatory compliance may require additional organizational controls beyond the application's technical capabilities.

 EntropyX: Nexus is engineered to align with leading industry security and privacy frameworks for enterprise environments. The following controls are implemented to support compliance across major standards:

OWASP Top Ten:

• Input Validation: Strict file type validation using comprehensive extension whitelist (.docx, .txt, .csv, .json, .xlsx, .png, .jpg, .jpeg, .mp3, .mp4, .zip, .heic, .heif, .pdf, .iso, .tiff, .tif, .cr2, .nef, .arw, .dng, .dcm, .fits, .dpx, .sql) with MIME type verification

• Authentication Security: Bcrypt password hashing with 12 salt rounds, session management with UUID-based IDs, and brute force protection (5 attempt limit with 15-minute lockout)

• Path Traversal Prevention: Enhanced SecurityManager.validateFilePath() with normalized path resolution, symbolic link detection, and directory traversal blocking

• File Size Controls: 500MB maximum file size enforcement with comprehensive validation in SecurityManager.validateFileSize()

• Secure Session Management: Configurable session timeouts (1-hour default), automatic expiration, and database-backed session storage with integrity verification

• Encryption Protection: Fernet-based database encryption with PBKDF2 key derivation (100,000 iterations) and AES-256-CBC fallback

• Security Logging: Comprehensive audit trails with LoggingManager class tracking LOGIN_FAILED, USER_LOGIN, SECURITY_SCAN, and all file operations

• Error Handling: Sanitized error messages through controlled exception handling preventing information disclosure

NIST Cybersecurity Framework:

• Identify: Multi-user authentication system with role-based access control, license validation, and machine binding using computer hash generation

• Protect: Database encryption with transparent operation, secure IPC communication, and comprehensive input sanitization across all user interfaces

• Detect: Real-time security event monitoring through AnalyticsEngine with automated threat detection and compliance scoring

• Respond: Automated incident logging with security event correlation, user session invalidation, and comprehensive audit trail generation

• Recover: Secure database backup and recovery procedures with encryption key preservation and temporary file cleanup

ISO 27001 Controls:

• A.9 Access Control: Role-based user management (USER/ADMIN) with password policy enforcement and session-based access validation

• A.10 Cryptography: Enterprise-grade encryption with Fernet implementation, secure key storage, and automatic database encryption/decryption

• A.12 Operations Security: Triple-tier logging system (application, security analytics, compression analytics) with SHA-256 integrity verification

• A.14 System Acquisition: Secure development with IPC validation, SQL injection prevention, and Content Security Policy implementation

• A.16 Incident Management: Automated security event detection with SECURITY_EVENTS_ACCESS, LOGIN_DB_ERROR, and LOG_PARSE_ERROR tracking

• A.18 Compliance: Structured audit trails with 30-day retention, exportable reports, and tamper-evident logging

HIPAA and PCI DSS:

• Technical Safeguards: Database-level encryption with user authentication, comprehensive audit logging, and secure session management

• Data Protection: Fernet encryption for all stored data with integrity verification and secure key lifecycle management

• Audit Requirements: Detailed logging of all user operations, compression activities, and security events with correlation tracking

• Access Controls: Multi-factor authentication through license key validation, machine binding, and role-based permissions

SOC 2 and SOX:

• Operational Controls: Complete audit trails of all database operations, user activities, and system events with integrity protection

• Internal Controls: Automated security scanning, compliance scoring, and database configuration validation

• Transparency: Real-time analytics dashboard with security event monitoring and user activity tracking

• Review Support: Exportable audit reports, security event logs, and comprehensive user session tracking for compliance review

Data Protection Regulations:

• GDPR Article 32: Security of processing through local database encryption, user consent management, and comprehensive data protection controls

• CCPA Technical Safeguards: Privacy-by-design with local data processing, user-controlled access, and minimal data collection principles

• Privacy by Design: Configurable database locations, user-controlled encryption, and local processing without external data transmission

• Data Minimization: Structured data collection with automatic cleanup procedures and configurable retention policies through analytics engine

Enterprise Compliance Features:

• Centralized Management: Configurable shared database directories with validation and connection testing for organizational deployment

• Audit Trail Integrity: SHA-256 hash verification for all log entries with tamper detection and comprehensive metadata tracking

• License Management: Enterprise license validation with usage tracking, machine binding, and centralized validation against encrypted databases

• Security Analytics: Real-time compliance monitoring with automated daily summaries, security scoring, and exportable compliance reports

Please note: While EntropyX Nexus includes comprehensive security and privacy features required by these frameworks, full compliance may require additional organizational, deployment, or administrative controls, such as network security policies, physical access controls, data retention governance, and protected audit log storage infrastructure.