一个新的可验证的(t,n)多秘密共享方案

A new verifiable(t,n) multi-secret sharing scheme

针对X-Y-W方案不能抵抗参与者欺诈的缺陷,基于证书和双子密钥思想提出一个新的可验证的(t,n)多秘密共享方案.其优点是:系统不需要安全信道,降低了通信代价,可防止分发者和参与者的欺诈,能动态地增加新的所需共享的密钥等.与现有的方案相比,该方案具有更低的通信量和存储量,效率更高.

According to the defects that the X-Y-W scheme can not withstand the cheating among the participants,a new verifiable（t,n） multi-secret sharing scheme is presented based on certificate and double secret shadow.This scheme meets some advantages,such as it does not need a secure channel in the system,can reduce communication costs,／ the cheating can be prevented from the dealer and the participants,and new shared secret can be dynamically increased etc.Comparing with the existing schemes,lower communication traffic and storage make the proposed scheme more efficient.