Cryptology ePrint Archive: Report 2006/044
Linear Integer Secret Sharing and Distributed Exponentiation
Ivan Damgard and Rune Thorbek
Abstract: We introduce the notion of Linear Integer Secret-Sharing (LISS) schemes, and show constructions of such schemes for any access structure. We show that any LISS scheme can be used to build a secure distributed protocol for exponentiation in any group. This implies, for instance, distributed RSA protocols for arbitrary access structures and with arbitrary public exponents.
Category / Keywords: cryptographic protocols
Publication Info: A shorter version appears in proc. of PKC 06.
Date: received 9 Feb 2006, last revised 8 Mar 2007
Contact author: thorbek at brics dk
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Version: 20070308:145048 (All versions of this report)
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