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| A secure and Efficient （t, n） Multisecret Sharing Authenticating Scheme |
| Xie Qi①②;Yu XiuYuan②;Wang JiLin③ |
| ①Department of Mathematics, Zhejiang University, Hangzhou 310027, China;②Hangzhou Teachers College,Hangzhou 310012,China;③School of Information, Zhejiang University of Finance & Economics, Hangzhou 310012, China |
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Abstract A secure and efficient （t, n） multisecret sharing authenticating scheme based on double shadow is proposed. The main merits are that the participant can reuse his shadows to recover the sharing multiple secrets that the dealer given and it only needs three parameters to reconstruct one secret, and need not to perform a zero-knowledge protocol to prevent the participant cheating. The proposed scheme is clearly superior to the other existing schemes in terms of both computational costs and communication costs.
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Received: 17 May 2004
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2005, Vol. 27 
