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» Wildcarded Identity-Based Encryption
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PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
15 years 1 months ago
Strongly Unforgeable Signatures and Hierarchical Identity-Based Signatures from Lattices without Random Oracles
Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
Markus Rückert
ICPADS
2005
IEEE
15 years 3 months ago
Separable and Anonymous Identity-Based Key Issuing
Abstract. In identity-based (ID-based) cryptosystems, a local registration authority (LRA) is responsible for authentication of users while the key generation center (KGC) is respo...
Ai Fen Sui, Sherman S. M. Chow, Lucas Chi Kwong Hu...
FC
2006
Springer
147views Cryptology» more  FC 2006»
15 years 1 months ago
Timed-Release and Key-Insulated Public Key Encryption
In this paper we consider two security notions related to Identity Based Encryption: Key-insulated public key encryption, introduced by Dodis, Katz, Xu and Yung; and Timed-Release ...
Jung Hee Cheon, Nicholas Hopper, Yongdae Kim, Ivan...
PAIRING
2010
Springer
133views Cryptology» more  PAIRING 2010»
14 years 7 months ago
Pairing Computation on Elliptic Curves with Efficiently Computable Endomorphism and Small Embedding Degree
Scott uses an efficiently computable isomorphism in order to optimize pairing computation on a particular class of curves with embedding degree 2. He points out that pairing implem...
Sorina Ionica, Antoine Joux
CCS
2004
ACM
15 years 2 months ago
Concealing complex policies with hidden credentials
Hidden credentials are useful in protecting sensitive resource requests, resources, policies, and credentials. We propose a significant performance improvement when implementing ...
Robert W. Bradshaw, Jason E. Holt, Kent E. Seamons