4RF Aprisa SR+ User Manual - page 25
22 | About the Radio
Aprisa SR User Manual
Security
The Aprisa SR provides security features to implement the key recommendations for industrial control
systems. The security provided builds upon the best in class from multiple standards bodies, including:
IEC/TR 62443 (TC65) ‘Industrial Communications Networks – Network and System Security’.
IEC/TS 62351 (TC57) ‘Power System Control and Associated Communications – Data and
Communication Security’.
The security features implemented are:
Licensed radio spectrum protects against interference.
Proprietary physical layer protocol and modified MAC layer protocol based on standardized IEEE
802.15.4.
Data payload security:
CCM
Counter with CBC-MAC integrity (NIST special publication 800-38C).
Data encryption:
Counter Mode Encryption (CTR) using Advanced Encryption Standard (AES).
Data authentication:
Cipher Block Chaining Message Authentication Code (CBC-MAC) using Advanced Encryption
Standard (AES).
Secured management interface protects configuration.
Address filtering enables traffic source authorization.