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ASIACRYPT
2006
Springer
13 years 12 months ago
2006
Springer
This paper presents a secure constant-round password-based group key exchange protocol in the common reference string model. Our protocol is based on the group key exchange protoco...
CRYPTO
2006
Springer
13 years 12 months ago
2006
Springer
In the last ten years, multivariate cryptography has emerged as a possible alternative to public key cryptosystems based on hard computational problems from number theory. Notably,...
EUROCRYPT
2006
Springer
13 years 12 months ago
2006
Springer
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
FC
2006
Springer
13 years 12 months ago
2006
Springer
Abstract. At FC'05, Chen et al. introduced an elegant privacy protecting coupon (PPC) system, CESSS05 [13], in which users can purchase multi-coupons and redeem them unlinkabl...
ACNS
2003
Springer
13 years 12 months ago
2003
Springer
Secure and reliable group communication is an increasingly active research area by growing popularity in group-oriented and collaborative application. One of the important challeng...