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A Dynamic Secret Sharing Scheme Based on Factorization and Discrete Logarithms |
He Ye-feng; Zhang Jian-zhong |
College of Mathematics and Info. Science, Shanxi Normal Univ., Xi’an 710062, China |
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Abstract A dynamic secret sharing scheme based on discrete logarithms and factorization is proposed in this paper. It has the following advanced properties: (1) The dealer can renew system secrets without renewing the shadows of the participants; (2) When the system accepts a new participant or fires a participant, the shadows of other participants would not change; (3) When some participants’ shadows are revealed ,they can be renewed without any effect on the others; (4) It can detect the cheater; (5) Comunication is reduced and work efficiency is improved.
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Received: 09 January 2003
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