Hybrid Multiplicative Non-perfect Secret Sharing
Hybrid Multiplicative Non-perfect Secret Sharing
复制标题
混合乘法非完美秘密共享
DOI:
10.1109/isit50566.2022.9834640
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Maki Yoshida
中科院分区:
文献类型:
--
作者:
Hasunuma Toru;Ono Kosuke;Toru Hasunuma;Toru Hasunuma;Maki Yoshida
A secret sharing scheme is said to be d-multiplicative if the scheme allows the players to multiply shared d secrets by locally converting their shares into an additive sharing of the product. This paper considers the most general setting where d secrets are independently shared by different adversary structures (hybrid) and a partial information can be leaked (non-perfect) and presents a necessary and sufficient condition for d-multiplication to be possible. In particular, even for the extreme case that the i-th secret is known by all but the i-th player who has partial information on the secret (e.g., all but one bit), d-multiplication is impossible.