Paper 2006/304 Original: eprint.iacr.org/2006/304 ↗
Identity-Based Encryption Gone Wild
Abstract
In this paper we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows to encrypt messages to a whole range of users simultaneously whose identities match a certain pattern. This pattern is defined through a sequence of fixed strings and wildcards, where any string can take the place of a wildcard in a matching identity. Our primitive can be applied to provide an intuitive way to send encrypted email to groups of users in a corporate hierarchy. We propose a full security notion and give efficient implementations meeting this notion under different pairing-related assumptions, both in the random oracle model and in the standard model.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2006-12-09: last updated
- 2006-09-06: published
- Short URL
- https://ia.cr/2006/304
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2006/304,
author = {Michel Abdalla and Dario Catalano and Alexander W. Dent and John Malone-Lee and Gregory Neven and Nigel P. Smart},
title = {Identity-Based Encryption Gone Wild},
howpublished = {Cryptology {ePrint} Archive, Paper 2006/304},
year = {2006},
url = {https://eprint.iacr.org/2006/304}
}