Efficient Secret Sharing Schemes Based on Unauthorized Subsets
Kouya Tochikubo · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2008
We propose two multiple assignment secret sharing schemes realizing general access structures. One is always more efficient than the secret sharing scheme proposed by Ito, Saito and Nishizeki [5] from the viewpoint of the number of shares distributed to each participant. The other is also always more efficient than the scheme I of [7].