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Advanced cryptographic functionalities such as searchable encryption, aggregate signatures, proxy re-encryption, and attribute-based encryption can be realized by adopting bilinear pairings based on elliptic curves over a prime finite field GF(p). To achieve enough security the size of p should be at least a-few-hundred bit. Thus the "good" GF(p) hardware multiplier is necessary to construct...
A spread spectrum technology is known to be able to expand the distance of wireless communications by improving the processing gain. However, the effective processing gain is decreased due to the phase shift between the two transceivers. We have studied the compensation algorithm of this phase shift, and its performance has been evaluated by a computer simulation. This paper shows some experimental...
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