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ASIACRYPT
2004
Springer
14 years 28 days ago
2004
Springer
We introduce a new computational problem related to the interpolation of group homomorphisms which generalizes many famous cryptographic problems including discrete logarithm, Diļ¬...
DRM
2003
Springer
14 years 22 days ago
2003
Springer
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
FSTTCS
2006
Springer
13 years 11 months ago
2006
Springer
The standard symbolic, deducibility-based notions of secrecy are in general insufficient from a cryptographic point of view, especially in presence of hash functions. In this paper...
ASIACRYPT
2009
Springer
14 years 2 months ago
2009
Springer
We demonstrate how the framework that is used for creating eļ¬cient number-theoretic ID and signature schemes can be transferred into the setting of lattices. This results in cons...
ITIIS
2010
13 years 2 months ago
2010
Anonymous hierarchical identity based encryption (HIBE) is an extension of identity based encryption (IBE) that can use an arbitrary string like an e-mail address for a public key...