SAE J1747 Security Access Standards for Automotive Electronic Systems
Society of Automotive Engineers standard defining security access protocols for automotive electronic systems, including motorcycle key programming, diagnostic security procedures, and immobilizer authentication methods for comprehensive system protection.
Standard Overview
Publication Date
2019 (Latest Revision)
Status
SAE Standard
Application
Security Access Protocols
Scope
Electronic System Security
Security Access Requirements
Seed-Key Authentication
Challenge-Response Protocol
Cryptographic authentication using seed-key algorithms
- Random seed generation by ECU
- Key calculation using proprietary algorithms
- Time-limited authentication sessions
Access Level Controls
Multi-Level Security
Hierarchical access control for different operations
- Level 1: Basic diagnostic access
- Level 2: Programming and calibration
- Level 3: Security and immobilizer functions
Time-Based Security
Session Management
Time-limited security sessions and token management
- Session timeout mechanisms
- Rolling security tokens
- Time-synchronized authentication
Motorcycle Key Programming
Immobilizer Security
Specific protocols for motorcycle key and immobilizer systems
- Key authentication procedures
- Immobilizer programming security
- Anti-theft system integration
Anti-Tampering Measures
Security Breach Detection
Protection against unauthorized access attempts
- Intrusion detection mechanisms
- Failed attempt logging
- Security lockout procedures
Secure Communication
Encrypted Data Transfer
Secure communication protocols for diagnostic operations
- Encrypted diagnostic messages
- Secure channel establishment
- Message integrity verification
Implementation Features
Authentication Protocols
Comprehensive authentication protocols and security procedures for SAE J1747 compliance.
- Cryptographic seed-key algorithm implementation
- Multi-factor authentication procedures
- Secure session establishment protocols
- Time-based token generation and validation
- Access level verification and control
- Security breach detection and response
Diagnostic Security
Security implementation for diagnostic and programming operations.
- Secure diagnostic session management
- Programming operation authentication
- Calibration data protection protocols
- Service mode security procedures
- Manufacturer-specific security extensions
- Compliance verification and testing
Implementation Guidelines
Best practices for implementing SAE J1747 security access standards.
- Security architecture design principles
- Cryptographic algorithm selection
- Key management and storage security
- Security testing and validation procedures
- Vulnerability assessment methodologies
- Security maintenance and updates