National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [61772224]; Natural Science Foundation of Hubei ProvinceNatural Science Foundation of Hubei Province [2017CFB303]
机构署名:
本校为其他机构
院系归属:
计算机学院
摘要:
Secret sharing schemes allow the secret to be shared among a group of parties, so that a quorum of these parties can work together to recover the secret, but less number of parties cannot learn any information of the secret. In the literature, secret sharing schemes are normally analysed using heuristic arguments rather than strict security proofs. However, such a method may overlook some security flaws, especially when it is used to analyse the secrecy property. In this paper, we illustrate this issue using some concrete examples. We show that in two existing secret sharing schemes, the secre...