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Reconfigurable key management for broadcast encryption

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1 Author(s)
M. J. Mihaljevic ; Math. Inst., Serbian Acad. of Sci. & Arts, Belgrade, Serbia

A novel approach for the cryptographic keys management in the broadcasting scenario with a conditional access control is proposed. It employs the reconfiguration concept, and it is based on a collection of the underlying structures - at each instant of time a structure from the collection is employed for updating the session key so that the communication overhead of updating is minimized. A receiver has a fixed set of cryptographic keys and in a general case, each of these keys plays a different role determined by the employed underlying structure.

Published in:

IEEE Communications Letters  (Volume:8 ,  Issue: 7 )