A practical dynamic multi-secret sharing scheme

In this paper, we propose a practical dynamic multi-secret sharing scheme based on the intractability of the discrete logarithm and one way hash functions, the exclusive OR operation. Security analysis shows that our scheme could correctly reconstruct the shared secret, and our scheme is as secure as Lin-Yeh´s scheme. In addition, in our schemes, all participants themselves select their shares, so the calculation amount of dealer is reduced and secure channel between the dealer and any participant is avoided. The group secret combiner can verify whether each participant´s pseudo secret share true or not.