Anonymous HIBE from Standard Assumptions over Type-3 Pairings using Dual System Encryption

Somindu C.  Ramanna; Palash Sarkar

Paper 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.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Keywords: anonymous HIBE asymmetric pairings dual-system encryption
Contact author(s): somindu_r @ isical ac in
History: 2013-08-30: received
Short URL: https://ia.cr/2013/528
License: CC BY

BibTeX

@misc{cryptoeprint:2013/528,
      author = {Somindu C.  Ramanna and Palash Sarkar},
      title = {Anonymous {HIBE} from Standard Assumptions over Type-3 Pairings using Dual System Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2013/528},
      year = {2013},
      url = {https://eprint.iacr.org/2013/528}
}