Authors:
Sbai Anass
;
Drocourt Cyril
and
Dequen Gilles
Affiliation:
MIS Laboratory, University of Picardie Jules Verne, Amiens and France
Keyword(s):
Smart-Grid, Cloud Computing, Proxy Re-encryption, Privacy, Confidentiality, Bank of Energy.
Related
Ontology
Subjects/Areas/Topics:
Applied Cryptography
;
Cryptographic Techniques and Key Management
;
Data and Application Security and Privacy
;
Data Engineering
;
Data Protection
;
Databases and Data Security
;
Information and Systems Security
;
Security and Privacy for Big Data
;
Security and Privacy in IT Outsourcing
;
Security and Privacy in the Cloud
;
Security and Privacy Policies
Abstract:
In the context of Smart Grid Cities, legal obligations require that certain personal data must be stored in the long term and protected. To deal with confidentiality issues, we use the concept of Proxy Re-Encryption (PRE) which allows sharing encrypted data. We present the first implementation of the Chow’s algorithm, and propose an optimized instantiation thanks to elliptic curves. This is the first unidirectional algorithm with CCA security that does not rely on pairing, which guarantees its high performance. This allows its use in real conditions. We have implemented it in JavaScript for direct use in a web browser by the user. In order to be able to process the data asynchronously, we then define the notion of PREaaS (Proxy Re-Encryption as a Service) that also allows use in a service-oriented context.