Two New(r,n)-Secret Share Schemes

In this paper, firstly, starting with the (r,n) the secret share scheme based on poly-nomial interpolation, when there are two cheaters in the secret sharing process of this scheme, the probability of cheating successfully is given. Secondly, a dynamic secret share scheme is constructed, this scheme is a better scheme against cheating. Finally, a secret share scheme based on Chinese Remainder Theorem is extended to Polynomial ring.