[STDS-802-16-MOBILE] perform network entry if an AK lifetime timer / TEK lifetime time r expires?

[Ma Steve-p20680 <steve.ma@FREESCALE.COM>]

Title: Message

Is it necessary to perform network entry if an AK lifetime timer / TEK lifetime timer expires?

 

There is a paragraph in 7.1.3 that states:

 

An SA's keying material [e.g. Data Encrytion Standard (DES) key and CBC Initialization Vector] has a limited lifetime.  When the BS delivers SA keying material to an SS, it also provides the SS with that material's remaining lifetime.  It is the responsibility of the SS to request new keying material from the BS before the set of keying material that the SS currently holds expires at the BS.  Should the current keying material expire before a new set of keying material is received, the SS shall perform network entry as described in 6.3.9.  The PKM protocol specifies how SS and BS maintain key synchronization.

 

Thanks,

 

Steve