conference paper Open access
Improved On-Line/Off-Line Threshold Signatures
Emmanuel Bressona b, Dario Catalanoc d, Rosario Gennaroe f
- aDCSSI Crypto Lab, 51 bd de La Tour-Maubourg, 75700 PARIS 07 SP, France
- bDCSSI Crypto Lab, Paris 07, France#TAB#
- cDipartimento di Matematica e Informatica, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
- dDipartimento di Matematica e Informatica, Università di Catania, Catania, Italy
- eI.B.M. T.J.Watson Research Center, P.O.Box 704, Yorktown Heights, NY 10598
- fI.B.M. T.J.Watson Research Center, Yorktown Heights, NY#TAB#
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Abstract
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TL;DRThis paper presents an alternative solution to the generic threshold version of on-line/off-line signature schemes based on the "hash-sign-switch" paradigm, which can be based on any threshold signature scheme, combined with a chameleon hash function based on discrete log, and shows that it can be proven secure based only on the traditional discrete logarithm assumption. (Semantic Scholar)