Robert F. Gordon, Edward A. MacNair, et al.
WSC 1985
In this paper, we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows a sender to encrypt messages to a whole range of receivers 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. © 2010 International Association for Cryptologic Research.
Robert F. Gordon, Edward A. MacNair, et al.
WSC 1985
M. Shub, B. Weiss
Ergodic Theory and Dynamical Systems
Naga Ayachitula, Melissa Buco, et al.
SCC 2007
Robert Manson Sawko, Malgorzata Zimon
SIAM/ASA JUQ