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Generic mediated encryption
- Source :
- Faculty of Engineering and Information Sciences - Papers: Part A
- Publication Year :
- 2013
-
Abstract
- We propose a generic mediated encryption (GME) system that converts any identity based encryption (IBE) to a mediated IBE. This system is based on enveloping an IBE encrypted message using a user's identity into another IBE envelope, using the identity of a security mediator (SEM) responsible for checking users for revocation. We present two security models based on the role of the adversary whether it is a revoked user or a hacked SEM. We prove that GME is as secure as the SEM's IBE (the envelope) against a revoked user and as secure as the user's IBE (the letter) against a hacked SEM. We also present two instantiations of GME. The first instantiation is based on the Boneh-Franklin (BF) FullIBE system, which is a pairing-based encryption system. The second instantiation is based on the Boneh, Gentry and Hamburg (BGH) system, which is a non pairing-based encryption system.
Details
- Database :
- OAIster
- Journal :
- Faculty of Engineering and Information Sciences - Papers: Part A
- Notes :
- application/pdf
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1393903064
- Document Type :
- Electronic Resource