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Zheng Yang A new efficient signcryption scheme in the standard model Security and Communication Networks

Article first published online: 7 MAY 2014 | DOI: 10.1002/sec.1034

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We introduce an efficient signcryption scheme for hybrid authenticated encryption that is provably secure in the standard model under a strong multiuser insider setting. Our new signcryption scheme is built on the basis of a variant of Boneh-CBoyen short signature, which works under bilinear groups. The new construction idea is to reuse the signature value to derive the encryption key. This could dramatically save not only the computational cost but also the communication bandwidth.

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