Wildcarded Identity-Based Encryption

@article{Abdalla2010WildcardedIE,
  title={Wildcarded Identity-Based Encryption},
  author={Michel Abdalla and James Birkett and Dario Catalano and Alexander W. Dent and John Malone-Lee and Gregory Neven and Jacob C. N. Schuldt and Nigel P. Smart},
  journal={Journal of Cryptology},
  year={2010},
  volume={24},
  pages={42-82}
}
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… CONTINUE READING

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