… The qualified subsets form the access structure of the scheme, which is a monotone …
secure perfect secret sharing schemes are considered in this paper. Secret sharing was …

… a perfect secret sharing scheme for this problem that, unlike most secret sharing schemes
that are suitable for hierarchical … To this end, we define hierarchical secret sharing as follows: …

… hierarchical threshold secret sharing (HTSS) scheme using blockchain. In the … of hierarchical
secret sharing and blockchain. We design a smart contract for secret sharing that is suitable …

… a perfect secret sharing scheme for this problem that, unlike most secret sharing schemes
that are suitable for hierarchical … To this end, we define hierarchical secret sharing as follows: …

… of a secret sharing scheme which is based on the hierarchical … scheme is ideal by showing
that the information rate equals 1. In order to show the efficiency of the proposed scheme, we …

… ideal secret sharing scheme for conjunctive access structure. In fact, we have another scheme
which is both ideal and perfect … However, we present only the former scheme because of …

… between secretsharing schemes and monotone formulae and monotone span programs.
We … In Section 5, we discuss lower bounds for secret-sharing schemes and present the best …

… The secret sharing scheme is perfect if the participants in any unqualified subsets cannot …
Notice that our scheme is the first type. We propose a hierarchical secret sharing scheme …

… of ideal multipartite secret sharing schemes. Most ideal multipartite secret sharing schemes
… results with the efficient methods to construct hierarchical secret sharing schemes from [9], […

… ear ideal secret sharing scheme. The proof of our characterization relies heavily on the strong
connection between ideal secret sharing schemes … is ideal if and only if it is a hierarchical …