Paper 2022/862
Scooby: Improved Multi-Party Homomorphic Secret Sharing Based on FHE
Abstract
We present new constructions of multi-party homomorphic secret sharing (HSS) based on a new primitive that we call homomorphic encryption with decryption to shares (HEDS).
Our first construction, which we call Scooby, is based on many popular
fully homomorphic encryption (FHE) schemes with a linear decryption property. Scooby achieves an
Note: Correction of the HSS Protocol
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Minor revision. SECURITY AND CRYPTOGRAPHY FOR NETWORKS – SCN 2022
- Keywords
- Homomorphic EncryptionHomomorphic Secret SharingMulti-Party Computation
- Contact author(s)
-
ilaria chillotti @ zama ai
emmanuela orsini @ kuleuven be
peter scholl @ cs au dk
nigel smart @ kuleuven be
barry vanleeuwen @ kuleuven be - History
- 2024-11-08: revised
- 2022-07-01: received
- See all versions
- Short URL
- https://ia.cr/2022/862
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2022/862, author = {Ilaria Chillotti and Emmanuela Orsini and Peter Scholl and Nigel Paul Smart and Barry Van Leeuwen}, title = {Scooby: Improved Multi-Party Homomorphic Secret Sharing Based on {FHE}}, howpublished = {Cryptology {ePrint} Archive, Paper 2022/862}, year = {2022}, url = {https://eprint.iacr.org/2022/862} }