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In this paper, a low-cost accelerator for the ηT pairing in characteristic three over the super-singular elliptic curves is designed. As the critical operations of ηT pairing, the cubing and sparse multiplications over GF(36m) in the Miller's algorithm are merged and their arithmetic are modified and scheduled to reduce the intermediate data related overhead. With these optimizations, the Miller's...
In 2010, Yau et al. introduced the notion of searchable proxy re-encryption with a designated tester (Re-dPEKS) and proposed a concrete construction of bidirectional Re-dPEKS which was secure in the random oracle model. In this paper, we present an efficient Re-dPEKS scheme which is proven secure against an adaptive chosen keyword attack in the adaptive corruption model without resorting to random...
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