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» Space-Efficient Identity Based Encryption Without Pairings
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FOCS
2007
IEEE
14 years 2 months ago
Space-Efficient Identity Based Encryption Without Pairings
Identity Based Encryption (IBE) systems are often constructed using bilinear maps (a.k.a. pairings) on elliptic curves. One exception is an elegant system due to Cocks which build...
Dan Boneh, Craig Gentry, Michael Hamburg
PAIRING
2009
Springer
117views Cryptology» more  PAIRING 2009»
14 years 5 months ago
Identity Based Group Signatures from Hierarchical Identity-Based Encryption
A number of previous papers explored the notion of identity-based group signature. We present a generic construction of identity-based group signatures. Our construction is based o...
Nigel P. Smart, Bogdan Warinschi
PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
14 years 2 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
CRYPTO
2004
Springer
138views Cryptology» more  CRYPTO 2004»
14 years 4 months ago
Secure Identity Based Encryption Without Random Oracles
We construct two efficient Identity Based Encryption (IBE) systems that are selective identity secure without the random oracle model. Selective identity secure IBE is a slightly w...
Dan Boneh, Xavier Boyen
ACNS
2005
Springer
167views Cryptology» more  ACNS 2005»
14 years 4 months ago
Identity Based Encryption Without Redundancy
This paper presents a first example of secure identity based encryption scheme (IBE) without redundancy in the sense of Phan and Pointcheval. This modification of the Boneh-Frank...
Benoît Libert, Jean-Jacques Quisquater