Multi-level threshold multi-secret sharing scheme with proactive security
Jiandong Wang · Journal of Computer Applications · 2009
In multi-secret sharing schemes, the secrets can only be shared in the same level threshold. A multi-level threshold multi-secret sharing scheme based on bivariate polynomial and the intractability of the discrete logarithm was proposed. A bivariate polynomial can degenerate to different lower-order bivariate polynomial according to different thresholds. The scheme has the following characteristics: the secrets can be shared in the multiple level threshold; the multiple secrets can be shared in the same level threshold; the scheme is proactive secure, and the shadow of every participant can be renewed periodically.