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ACNS
2007
Springer
165views Cryptology» more  ACNS 2007»
14 years 1 months ago
Tweaking TBE/IBE to PKE Transforms with Chameleon Hash Functions
We present two transforms to acquire chosen ciphertext security from tag based techniques. The first one requires the separability of underlying primitives. By separability, info...
Rui Zhang 0002
ANTS
2004
Springer
121views Algorithms» more  ANTS 2004»
14 years 26 days ago
Function Field Sieve in Characteristic Three
In this paper we investigate the efficiency of the function field sieve to compute discrete logarithms in the finite fields F3n . Motivated by attacks on identity based encrypti...
Robert Granger, Andrew J. Holt, Dan Page, Nigel P....
CTRSA
2010
Springer
211views Cryptology» more  CTRSA 2010»
14 years 17 days ago
Anonymity from Asymmetry: New Constructions for Anonymous HIBE
A Hierarchical Identity Based Encryption (HIBE) system is anonymous if the ciphertext reveals no information about the recipient’s identity. create it. While there are multiple c...
Léo Ducas
ASIACRYPT
2006
Springer
13 years 11 months ago
HIBE With Short Public Parameters Without Random Oracle
Abstract. At Eurocrypt 2005, Waters presented an identity based encryption (IBE) protocol which is secure in the full model without random oracle. In this paper, we extend Waters&#...
Sanjit Chatterjee, Palash Sarkar
EUROCRYPT
2010
Springer
13 years 10 months ago
Efficient Lattice (H)IBE in the Standard Model
We construct an efficient identity based encryption system based on the standard learning with errors (LWE) problem. Our security proof holds in the standard model. The key step in...
Shweta Agrawal, Dan Boneh, Xavier Boyen