Page 25 - NZ Post Proposal_Email
P. 25
pure lighting for a green world
page 25
HIGH RELIABILITY AND AVAILABILITY
INTERNET AND OTHER SYSTEMS
Internet and other systems
Achs & re-TX
Packet Lost
Adaptive TX Power Control >Re-transmit
Degraded Link
>Increase TX Power
Frequency
TX TX TX OK Interference OK
Tim e
Short TX time-on-air Multi-channel interference avoidance
Minimise probability of collisions Interfered Channel
with other systems >Change channel and avoid using the
interfered one
SECURE CONNECTIVITY
Secure messaging and network EXTENSIVE SECURITY FEATURES
INTERNET AND OTHER SYSTEMS Message integrity & authenticity
Message confidentiality
Message replay protection
Unauthorized
party cannot
join network availability
Unauthorized
party cannot
modify
messages
Unauthorized
party cannot Valid CRYPTOGRAPHIC
read message messages
content cannot be
replayed
successfully Algorithms AES128CTR
Encryption OMA1 message integrity
Message Confidentiality - Every message
encrypted with AES128CTR mode
