Visible to the public Biblio

Filters: Keyword is security update  [Clear All Filters]
2018-09-28
Aono, Yoshinori, Hayashi, Takuya, Trieu Phong, Le, Wang, Lihua.  2017.  Efficient Key-Rotatable and Security-Updatable Homomorphic Encryption. Proceedings of the Fifth ACM International Workshop on Security in Cloud Computing. :35–42.
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.