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PKC
2004
Springer
14 years 25 days ago
2004
Springer
We present a new undeniable signature scheme which is based on the computation of characters. Our signature scheme offers the advantage of having an arbitrarily short signature. I...
ICPADS
2005
IEEE
14 years 1 months ago
2005
IEEE
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...
EUROCRYPT
2007
Springer
14 years 1 months ago
2007
Springer
Among the three broad classes of Identity-Based Encryption schemes built from pairings, the exponent inversion paradigm tends to be the most efficient, but also the least extensibl...
CJ
2006
13 years 7 months ago
2006
Anonymous channels or similar techniques that can achieve sender's anonymity play important roles in many applications. However, they will be meaningless if cryptographic prim...
ACISP
2001
Springer
13 years 12 months ago
2001
Springer
Abstract. Many algorithmic problems, which are used to prove the security of a cryptographic system, are shown to be characterized as the subgroup membership problem. We then apply...