Secret sharing scheme among weighted participants based on adversary structure
Ruihu Li · Computer Engineering and Applications Journal · 2011
Aiming at the problems in practical application involving both weighted participants and adversary structure,based on Chinese remainder theorem,a secret sharing scheme constructed on adversary structure is proposed.The scheme is a prefect secret sharing scheme with reconstruction property and confidentiality property,which can efficiently prevent attacking from external attackers and cheating among participants.Any information can be delivered in the form of plaintext,and secure channel is unnecessary.The scheme allows participants to be added or deleted dynamically,the secret and adversary structure can be renewed without renewing the secret share of every participant.The security of the scheme is based on that of Shamir's secret sharing scheme and the intractability of discrete logarithm problem.