Welcome to the resource topic for 2006/304
Title:
Identity-Based Encryption Gone Wild
Authors: Michel Abdalla, Dario Catalano, Alexander W. Dent, John Malone-Lee, Gregory Neven, Nigel P. Smart
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.
ePrint: https://eprint.iacr.org/2006/304
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