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现有的门限多秘密共享方案中,大多数存在着固定的门限值、多次利用单秘密共享来实现多秘密共享等问题。为了解决这些问题,文中提出了一种动态(t,n)门限的多级多秘密共享方案。此方案具有如下特点:对于不同等级的多秘密,多秘密分发者可动态地调整其恢复时的门限值;对于相同等级的多秘密,多秘密分发者在分发、恢复、更新和验证等操作时能一次完成。
In the existing threshold multi-secret sharing schemes, most of them have fixed thresholds and multiple secret sharing to achieve multi-secret sharing. In order to solve these problems, a dynamic (t, n) threshold multi-level multi-secret sharing scheme is proposed in this paper. The scheme has the following characteristics: for different levels of multi-secret, multi-secret distributors can dynamically adjust the threshold value of recovery; for the same level of multi-secret, multi-secret distributor in the distribution, recovery, update and validation operations When can finish at once.