Efficient Access Control in a Hierarchy for Hardware-Limited Users

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Provided by: AICIT
Topic: Hardware
Format: PDF
Access control in a hierarchy plays an important role for multi-user communication environments. Owing to the rapid progress of wireless networks, it is necessary to construct a low-computation dynamic access control scheme for hardware-limited users to obtain secure information. Therefore, the authors propose an efficient cryptographic key assignment scheme in which the cryptographic key of each user is calculated only through the exclusive- or operation and modular multiplication computations. The key generation and key derivation are quite simple and efficient; and the number of public/secret parameters for each authenticated user is small.
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