About Lesson
Protocol Design Principles
Designing robust cryptographic protocols involves adhering to key principles to avoid vulnerabilities:
- Simplicity: Keep protocols simple to minimize errors and make them easier to analyze.
- Redundancy: Incorporate mechanisms to detect errors or tampering.
- Authentication Before Encryption: Ensure proper identity verification before encrypting data.
- Forward Secrecy: Use temporary keys that cannot be derived from long-term keys to ensure past communications remain secure even if the long-term key is compromised.
- Defense Against Replay Attacks: Include timestamps or sequence numbers to prevent attackers from reusing intercepted data packets.