SWRA714A July   2021  – November 2023 CC1312PSIP , CC1312R , CC1312R7 , CC1314R10 , CC1352P , CC1352P7 , CC1352R

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Acronyms
  5. 2 Overview
  6. 3 Reference Examples
  7. 4 RF Protocols – Wi-SUN® PHYs
  8. 5 Software Block Diagram
  9. 6 Network Topology and Features
  10. 7 Security
    1. 7.1 Certificate Management
    2. 7.2 Key Exchange Process
  11. 8 Performance and Test Data
  12. 9 Out-of-box Experience
  13. 10Training
  14. 11Tools
    1. 11.1 Code Composer Studio IDE
    2. 11.2 SysConfig
    3. 11.3 Packet Sniffer
    4. 11.4 TI Wi-SUN FAN Spinel
    5. 11.5 TI wfantund – User-Space Network Interface Driver
  15. 12Known Limitations
  16. 13Revision History

7.2 Key Exchange Process

The following list is an overview of the security key exchange process:

  • A unique Pairwise Master Key (PMK) and Pairwise Transient Key (PTK) is established between Device and Border Router
  • A PTK is used to securely install a GTK (Group Transient Key) to individual devices
  • A GTK is used by devices to encrypt MAC payload packets using AES-128 CCM* as defined in IEEE 802.15.4
  • Network management defines the lifetime for different keys and performs key management
  • Lifetime of PMK, PTK , and GTK are typically in descending order (default value: 4, 2 and 1 month respectively)

This stack release supports default certificates (compiled into code for field trials).