Efficient key-rotatable and security-updatable homomorphic encryption
Y Aono, T Hayashi, L Trieu Phong, L Wang - Proceedings of the Fifth …, 2017 - dl.acm.org
Y Aono, T Hayashi, L Trieu Phong, L Wang
Proceedings of the Fifth ACM International Workshop on Security in Cloud …, 2017•dl.acm.orgIn 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 …
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 …
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.
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