RT Conference Proceedings
T1 (Password) authenticated key establishment: From 2-party to group
A1 Abdalla, Michel
A1 Bohli, Jens Matthias
A1 González Vasco, María Isabel
A1 Steinwandt, Rainer
AB A protocol compiler is described, that transforms any provably secure authenticated 2-party key establishment into a provably secure authenticated group key establishment with 2 more rounds of communication. The compiler introduces neither idealizing assumptions nor high-entropy secrets, e.g., for signing. In particular, applying the compiler to a password-authenticated 2-party key establishment without random oracle assumption, yields a password-authenticated group key establishment without random oracle assumption. Our main technical tools are non-interactive and non-malleable commitment schemes that can be implemented in the common reference string (CRS) model.
PB Springer
SN 978-3-540-70935-0
YR 2007
FD 2007
LK https://hdl.handle.net/10016/37416
UL https://hdl.handle.net/10016/37416
LA eng
NO Proceedings of: TCC 2007: Fourth IACR Theory of Cryptography Conference, 21-24 February 2007, Amsterdam, The Netherlands.
NO The first author was supported in part by the European Commission through the IST Program under Contract IST-2002-507932 ECRYPT and by France Telecom R&D as part of the contract CIDRE, between France Telecom R&D and École normale supérieure.
DS e-Archivo
RD 17 jul. 2024