Unidirectional Key Update in Updatable Encryption, Revisited
Abstract
In this paper we construct a new efficient updatable encryption (UE) scheme based on FrodoPKE learning with errors key encapsulation. We analyse the security of the proposed scheme in the backward-leak uni-directional setting within the rand-ind-eu-cpa model. Since the underlying computationally hard problem here is LWE, the scheme is secure against both classical and quantum attacks.
Fields of Study & Subjects
Chaos-based Image/Signal Encryption
Cryptography and Data Security
Cryptographic Implementations and Security
Publication details
- Journal / source
- Fundamenta Informaticae
- Volume
- Volume 194, Issue 4: Central...
- Publication date
- 11 January 2026
- Language
- EN