Fair Secret Sharing Scheme Research

In recent years,with the continuous development and advancement of large-scale information technologies such as the Internet and big data,people have further requirements on the security of personal information,confidentiality,and the fairness of information interaction.The study of information security direction is an important means for the protection of information and data.It is an important topic for ensuring the healthy and orderly development of the network.Fair and secret sharing is one of the important branches and has extensive applications in various fields.The main problems solved by fair secret sharing are:First,the recoverability of shared secrets,that is,secrets must be recovered eventually.The second is the security of shared secrets,that is,if it is not the legal holder of a secret share,it cannot recover the true secret.The third is the fairness of shared secrets.That is,if multiple secret share holders have the same rights,they can neither recover secrets.There is no possibility that some holders can and other holders cannot recover secrets.However,fair and confidential sharing does not protect personal privacy information that may exist in secret shares.For fair and secret sharing,it is necessary to provide secret share to other participants.This paper proposes a new fair and secret sharing program,which can achieve the fairness of the program without telling other participants about the private secret share.The main content of the paper is as follows:First,it briefly discusses the meaning and background and current status of the secret sharing,and then introduces the preparatory knowledge about fair secret sharing and secure multi-party computation.Then,a system of equations solving the protection of private information is designed in combination with a secure multi-party solution.Subsequently,on the basis of the above agreement,a new fair secret sharing scheme was proposed.While achieving the fairness of the scheme,it is not necessary to inform other participants of the private secret share so that the scheme has a privacy protection function.Finally,a brief summary of this article and the outlook for future research directions are presented.