Identity-Based Encryption from the Weil Pairing
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EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
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Fully secure unbounded inner-product and attribute-based encryption
ASIACRYPT'12 Proceedings of the 18th international conference on The Theory and Application of Cryptology and Information Security
Fully secure hidden vector encryption under standard assumptions
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Forward-Secure hierarchical predicate encryption
Pairing'12 Proceedings of the 5th international conference on Pairing-Based Cryptography
Shorter IBE and signatures via asymmetric pairings
Pairing'12 Proceedings of the 5th international conference on Pairing-Based Cryptography
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This paper presents a hierarchical predicate encryption (HPE) scheme for inner-product predicates that is secure (selectively attribute-hiding) in the standard model under new assumptions. These assumptions are non-interactive and of fixed size in the number of adversary's queries (i.e., not "q -type"), and are proven to hold in the generic model. To the best of our knowledge, this is the first HPE (or delegatable PE) scheme for inner-product predicates that is secure in the standard model. The underlying techniques of our result are based on a new approach on bilinear pairings, which is extended from bilinear pairing groups over linear spaces. They are quite different from the existing techniques and may be of independent interest.