TY - GEN
T1 - A proactive secret sharing for server assisted threshold signatures
AU - Yang, Jong Phil
AU - Rhee, Kyung Hyune
AU - Sakurai, Kouichi
PY - 2006/1/1
Y1 - 2006/1/1
N2 - Threshold signature schemes distribute secret information to several servers and make the whole system that maintains the secret information fault-tolerant. Since threshold signature schemes typically assume that the shared signing function can only be activated by a quorum number of servers. If anyone has a power to activate the signing function of servers, he can easily compute valid signatures for a specific organization without knowing the private key. S. Xu et al. proposed a general construction to build threshold signature schemes (called as server assisted threshold signatures) which provide an organization (e.g., a user) with controllability for activating his private signing function in a certain enhanced way. In this paper, we newly propose proactive secret sharing schemes which are suitable for server-assisted threshold signatures.
AB - Threshold signature schemes distribute secret information to several servers and make the whole system that maintains the secret information fault-tolerant. Since threshold signature schemes typically assume that the shared signing function can only be activated by a quorum number of servers. If anyone has a power to activate the signing function of servers, he can easily compute valid signatures for a specific organization without knowing the private key. S. Xu et al. proposed a general construction to build threshold signature schemes (called as server assisted threshold signatures) which provide an organization (e.g., a user) with controllability for activating his private signing function in a certain enhanced way. In this paper, we newly propose proactive secret sharing schemes which are suitable for server-assisted threshold signatures.
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M3 - Conference contribution
AN - SCOPUS:33750332142
SN - 3540393684
SN - 9783540393689
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 250
EP - 259
BT - High Performance Computing and Communications - Second International Conference, HPCC 2006, Proceedings
PB - Springer Verlag
T2 - 2nd International Conference on High Performance Computing and Communications, HPCC 2006
Y2 - 12 September 2006 through 14 September 2006
ER -