Multirecipient Encryption Schemes: How to Save on Bandwidth and Computation Without Sacrificing Security

@article{Bellare2007MultirecipientES,
  title={Multirecipient Encryption Schemes: How to Save on Bandwidth and Computation Without Sacrificing Security},
  author={Mihir Bellare and Alexandra Boldyreva and K. Kurosawa and Jessica Staddon},
  journal={IEEE Transactions on Information Theory},
  year={2007},
  volume={53},
  pages={3927-3943}
}
This paper proposes several new schemes which allow a sender to send encrypted messages to multiple recipients more efficiently (in terms of bandwidth and computation) than by using a standard encryption scheme. Most of the proposed schemes explore a new natural technique called randomness reuse. In order to analyze security of our constructions, we introduce a new notion of multirecipient encryption schemes (MRESs) and provide definitions of security for them. We finally show a way to avoid ad… CONTINUE READING

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