## CryptoDB

### Paper: Structural Identity-Based Encryption

Authors: Man Ho Au Siu-Ming Yiu URL: http://eprint.iacr.org/2007/422 Search ePrint Search Google In this paper, we introduce the concept of structural identity-based encryption (SIBE). Similar to hierarchical identity-based encryption (HIBE), entities in the system are organized into hierarchy. An entity in SIBE can decrypt ciphertext for all its ancestors. It can be seen as an opposite of HIBE, where an entity can decrypt the ciphertext for all its descendants. We formalize the notion and security requirements, propose an efficient construction and show that our construction is secure under appropriate assumptions in the random oracle model.
##### BibTeX
@misc{eprint-2007-13702,
title={Structural Identity-Based Encryption},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / HIBE, SIBE},
url={http://eprint.iacr.org/2007/422},
note={ mhaa456@uow.edu.au 13827 received 10 Nov 2007},
author={Man Ho Au and Siu-Ming Yiu},
year=2007
}