TY - GEN
T1 - AC0 Constructions of Secret Sharing Schemes – Accommodating New Parties
AU - Chaudhury, Shion Samadder
AU - Dutta, Sabyasachi
AU - Sakurai, Kouichi
N1 - Funding Information:
S. S. Chaudhury is financially supported by Indian Statistical Institute, Kolkata, India under a research fellowship program. The work presented in this paper was carried out while the first author visited Kyushu University, Japan. S. Dutta is grateful to the National Institute of Information and Communications Technology (NICT), Japan for financial support under the NICT International Exchange Program during 2018–19 when the preliminary draft was prepared.
Publisher Copyright:
© 2020, Springer Nature Switzerland AG.
PY - 2020
Y1 - 2020
N2 - The possibility of implementing secret sharing in the complexity class AC0 was shown in a recent work by Bogdanov et al. (Crypto’16) who provided constructions of ramp schemes. Cheng-Ishai-Li (TCC’17) forwarded the work by achieving robustness for such schemes. In this paper we construct secret sharing schemes which can include new parties over time keeping the entire construction implementable by AC0 circuits. We provide AC0 constructions of a dynamic secret sharing scheme and an evolving secret sharing scheme. The constructions are more flexible than similar existing schemes, use less resources and have several notable advantages.
AB - The possibility of implementing secret sharing in the complexity class AC0 was shown in a recent work by Bogdanov et al. (Crypto’16) who provided constructions of ramp schemes. Cheng-Ishai-Li (TCC’17) forwarded the work by achieving robustness for such schemes. In this paper we construct secret sharing schemes which can include new parties over time keeping the entire construction implementable by AC0 circuits. We provide AC0 constructions of a dynamic secret sharing scheme and an evolving secret sharing scheme. The constructions are more flexible than similar existing schemes, use less resources and have several notable advantages.
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U2 - 10.1007/978-3-030-65745-1_17
DO - 10.1007/978-3-030-65745-1_17
M3 - Conference contribution
AN - SCOPUS:85098271051
SN - 9783030657444
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 292
EP - 308
BT - Network and System Security - 14th International Conference, NSS 2020, Proceedings
A2 - Kutyłowski, Mirosław
A2 - Zhang, Jun
A2 - Chen, Chao
PB - Springer Science and Business Media Deutschland GmbH
T2 - 14th International Conference on Network and System Security, NSS 2020
Y2 - 25 November 2020 through 27 November 2020
ER -