| Title | Efficient Key-Rotatable and Security-Updatable Homomorphic Encryption |
| Publication Type | Conference Paper |
| Year of Publication | 2017 |
| Authors | Aono, Yoshinori, Hayashi, Takuya, Trieu Phong, Le, Wang, Lihua |
| Conference Name | Proceedings of the Fifth ACM International Workshop on Security in Cloud Computing |
| Publisher | ACM |
| Conference Location | New York, NY, USA |
| ISBN Number | 978-1-4503-4970-3 |
| Keywords | composability, cyber physical systems, efficient encryption, homomorphic encryption, key rotation, learning with errors, pubcrawl, resilience, Resiliency, security update |
| Abstract | In this paper we presents the notion of key-rotatable and security-updatable homomorphic encryption (KR-SU-HE) scheme, which is a class of public-key homomorphic encryption in which the keys and the security of any ciphertext can be rotated and updated while still keeping the underlying plaintext intact and unrevealed. We formalise syntax and security notions for KR-SU-HE schemes and then build a concrete scheme based on the Learning With Errors assumption. We then perform testing implementation to show that our proposed scheme is efficiently practical. |
| URL | http://doi.acm.org/10.1145/3055259.3055260 |
| DOI | 10.1145/3055259.3055260 |
| Citation Key | aono_efficient_2017 |
Efficient Key-Rotatable and Security-Updatable Homomorphic Encryption