Cryptology ePrint Archive: Report 2013/528
Anonymous HIBE from Standard Assumptions over Type-3 Pairings using Dual System Encryption
Somindu C. Ramanna and Palash Sarkar
Abstract: We present the first anonymous hierarchical identity based encryption (HIBE) scheme using
Type-3 pairings with adaptive security based on standard assumptions. Previous constructions
of anonymous HIBE schemes did not simultaneously achieve all these features.
The new construction uses dual pairing vector spaces using an identity hash earlier used by Boneh, Boyen and Goh.
The proof of security follows dual system approach based on decisional subspace assumptions
which are implied by Symmetric eXternal Diffie-Hellman (SXDH) assumption in Type-3 pairing groups.
Category / Keywords: public-key cryptography / hierarchical identity-based encryption (HIBE), anonymous HIBE, asymmetric pairings, dual-system encryption
Date: received 23 Aug 2013
Contact author: somindu_r at isical ac in
Available format(s): PDF | BibTeX Citation
Version: 20130830:090546 (All versions of this report)
Short URL: ia.cr/2013/528
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