Paper 2022/017
Keyed-Fully Homomorphic Encryption without Indistinguishability Obfuscation
Abstract
(Fully) homomorphic encryption ((F)HE) allows users to publicly evaluate circuits on encrypted data. Although publicly homomorphic evaluation property has various applications, (F)HE cannot achieve security against chosen ciphertext attacks (CCA2) due to its nature. To achieve both the CCA2 security and homomorphic evaluation property, Emura et al. (PKC 2013) introduced keyed-homomorphic public key encryption (KH-PKE) and formalized its security denoted by
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Major revision. ACNS 2022
- Keywords
- Keyed-homomorphic public key encryptionKeyed-fully homomorphic encryptionStrong DSS-NIZK
- Contact author(s)
-
sato-shingo-zk @ ynu ac jp
k-emura @ se kanazawa-u ac jp
takayasu-a @ g ecc u-tokyo ac jp - History
- 2023-09-20: revised
- 2022-01-08: received
- See all versions
- Short URL
- https://ia.cr/2022/017
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2022/017, author = {Shingo Sato and Keita Emura and Atsushi Takayasu}, title = {Keyed-Fully Homomorphic Encryption without Indistinguishability Obfuscation}, howpublished = {Cryptology {ePrint} Archive, Paper 2022/017}, year = {2022}, url = {https://eprint.iacr.org/2022/017} }