Security analysis and improvement of two verifiable multi-secret sharing schemes
Jia Yu, Rong Hao, Xiangguo Cheng · International Journal of Security and Networks · 2013
Recently, some schemes about verifiable multi–secret sharing based on two–variable one–way function have been proposed. In this paper, we analyse the security of two schemes and draw a conclusion that the both schemes cannot verify whether the dealer is honest or not. We also improve these schemes to make them have the fully verifiable property.