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ASIACRYPT
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. An authenticated group key exchange (AGKE) scheme allows a group of users in a public network to share a session key which may later be used to achieve desirable cryptogr...
ASIACRYPT
2004
Springer
15 years 3 months ago
2004
Springer
d abstract) Bartosz Przydatek1 and Reto Strobl2 1 Department of Computer Science, ETH Z¨urich, Switzerland 2 IBM Research, Zurich Research Laboratory, Switzerland In this paper, w...
ASIACRYPT
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. We consider the problem of increasing the threshold parameter of a secret-sharing scheme after the setup (share distribution) phase, without further communication between...
ASIACRYPT
2004
Springer
15 years 3 months ago
2004
Springer
Secret handshakes were recently introduced [BDS+ 03] to allow members of the same group to authenticate each other secretly, in the sense that someone who is not a group member ca...
ASIACRYPT
2004
Springer
15 years 3 months ago
2004
Springer
In the bare public-key model, introduced by Canetti et al. [STOC 2000], it is only assumed that each verifier deposits during a setup phase a public key in a file accessible by a...