Cryptology ePrint Archive: Report 2011/455
The Relation and Transformation between Hierarchical Inner Product Encryption and Spatial Encryption
Jie Chen and Hoon Wei Lim and San Ling and Huaxiong Wang
Abstract: Hierarchical inner product encryption (HIPE) and spatial encryption (SE) are two important classes of functional encryption (FE) that have a large number of applications.
Although HIPE and SE both involve some notion of linear algebra, the former works in vectors while the latter is based on (affine) spaces.
Moreover, they currently possess different properties in terms of security, anonymity (payload/attribute-hiding) and ciphertext sizes, for example.
In this paper, we formally study the relation between HIPE and SE.
In our work, we discover some interesting and novel property-preserving transformation techniques that enable generic construction of an SE scheme from an HIPE scheme, and vice versa.
Category / Keywords: public-key cryptography / Functional Encryption, Hierarchical Inner Product Encryption, Spatial Encryption, Generic Construction
Publication Info: A version of this paper will appear at Designs, Codes and Cryptography
Date: received 19 Aug 2011, last revised 24 Apr 2012
Contact author: s080001 at e ntu edu sg
Available formats: PDF | BibTeX Citation
Version: 20120424:105138 (All versions of this report)
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