Realizing the sticking point that security has been in the widespread
adoption of broadband wireless service, the IEEE and the Forum both determined
to define a robust security environment. WiMAX security supports two
quality encryptions standards, that of the DES3 and AES, which is considered
leading edge. The standard defines a dedicated security processor on board
the base station for starters. There are also minimum encryption
requirements for the traffic and for end to end authentication—the latter of
which is adapted from the data-over-cable service interface specification (DOCSIS)
BPI+ security protocol.
Basically, all traffic on a WiMAX network must be encrypted using Counter Mode
with Cipher Block Chaining Message Authentication Code Protocol (CCMP) which
uses AES for transmission security and data integrity authentication.
The end-to-end authentication the PKM-EAP (Extensible Authentication Protocol)
methodology is used which relies on the TLS standard of public key encryption.
At least one chip company designed processors to support this standard of
onboard security processor.
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