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» On the Security of Identity Based Ring Signcryption Schemes
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ASIACRYPT
2005
Springer
14 years 1 months ago
Spreading Alerts Quietly and the Subgroup Escape Problem
We introduce a new cryptographic primitive called the blind coupon mechanism (BCM). In effect, the BCM is an authenticated bit commitment scheme, which is AND-homomorphic. It has n...
James Aspnes, Zoë Diamadi, Kristian Gjø...
EUROCRYPT
1999
Springer
13 years 11 months ago
Conditional Oblivious Transfer and Timed-Release Encryption
Abstract. We consider the problem of sending messages into the future." Previous constructions for this task were either based on heuristic assumptions or did not provide anon...
Giovanni Di Crescenzo, Rafail Ostrovsky, Sivaramak...
ACSAC
2007
IEEE
14 years 1 months ago
SSARES: Secure Searchable Automated Remote Email Storage
The increasing centralization of networked services places user data at considerable risk. For example, many users store email on remote servers rather than on their local disk. D...
Adam J. Aviv, Michael E. Locasto, Shaya Potter, An...
SCN
2008
Springer
147views Communications» more  SCN 2008»
13 years 7 months ago
Privacy-preserving secure relative localization in vehicular networks
Relative location information helps build vehicle topology maps. Such maps provide location information of nearby vehicles to drivers. In building a vehicle topology, one must cons...
Lei Tang, Xiaoyan Hong, Phillip G. Bradford
CRYPTO
2005
Springer
120views Cryptology» more  CRYPTO 2005»
14 years 1 months ago
Searchable Encryption Revisited: Consistency Properties, Relation to Anonymous IBE, and Extensions
We identify and fill some gaps with regard to consistency (the extent to which false positives are produced) for public-key encryption with keyword search (PEKS), providing new de...
Michel Abdalla, Mihir Bellare, Dario Catalano, Eik...