Paper 2014/141
Unrestricted Identity-Based Aggregate Signcryption in the Standard Model from Multilinear Maps
Hao Wang
Abstract
Signcryption is a relatively new cryptographic technique that is supposed to fulfill the functionalities of digital signature and encryption in a single logical step and can effectively decrease the computational costs and communication overheads in comparison with the traditional signature-then-encryption schemes, and aggregate signcryption scheme allows individual signcryption ciphertexts intended for the same recipient to be aggregated into a single (shorter) combined ciphertext without losing any of the security guarantees. In this paper, we present a new identity-based aggregate signcryption scheme using multilinear maps. To the best of my knowledge, our new scheme is the first identity-based aggregate signcryption scheme that admits unrestricted aggregation.
Metadata
- Available format(s)
- Publication info
- Preprint. MINOR revision.
- Contact author(s)
- whatsdnu @ gmail com
- History
- 2015-03-26: withdrawn
- 2014-02-27: received
- See all versions
- Short URL
- https://ia.cr/2014/141
- License
-
CC BY