| Item Type |
Conference or Workshop Item
(Paper)
|
| Abstract |
In many situations, clients (e.g., researchers, companies, hospitals) need to outsource joint computations based on joint inputs to external cloud servers in order to provide useful results. Often clients want to guarantee that the results are correct and thus, an output that can be publicly verified is required. However, important security and privacy challenges are raised, since clients may hold sensitive information and the cloud servers can be untrusted. Our goal is to allow the clients to protect their secret data, while providing public verifiability i.e., everyone should be able to verify the correctness of the computed result.
In this paper, we propose three concrete constructions of verifiable additive homomorphic secret sharing (VAHSS) to solve this problem. Our instantiations combine an additive homomorphic secret sharing (HSS) scheme, which relies on Shamir’s secret sharing scheme over a finite field |
| Authors |
Tsaloli, Georgia & Mitrokotsa, Aikaterini |
| Language |
English |
| Subjects |
computer science |
| HSG Classification |
contribution to scientific community |
| Date |
2019 |
| Page Range |
115-132 |
| Event Title |
Information Security and Cryptology - ICISC 2019 - 22nd International Conference, Seoul, South Korea, December 4-6, 2019, Revised Selected Papers |
| Official URL |
https://doi.org/10.1007/978-3-030-40921-0\_7 |
| Depositing User |
Prof. Dr. Katerina Mitrokotsa
|
| Date Deposited |
06 Feb 2021 19:07 |
| Last Modified |
20 Jul 2022 17:44 |
| URI: |
https://www.alexandria.unisg.ch/publications/262278 |
Sum It Up: Verifiable Additive Homomorphic Secret Sharing
![[img]](http://www.alexandria.unisg.ch/style/images/fileicons/oa_orange.png)
