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Title:
Efficient identity-based threshold decryption scheme from bilinear pairings
Authors: Wei Gao, Guilin Wang, Kefei Chen, Xueli Wang, Guoyan Zhang
Abstract:Taking advantage of a technique that allows to safely distribute a private key among decryption servers we introduce a new identity-based threshold scheme, proven secure in the random oracle model. This new paring-based scheme features a lot of improvements compared to other schemes that can be found in the literature. Among them the two most noticeable ones are, the efficiency, by reducing the number of pairing computations, and the ability for a user to generate and share a private key without requiring any access to a PKG.
ePrint: https://eprint.iacr.org/2012/075
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