Revocation and Tracing Schemes for Stateless Receivers

  title={Revocation and Tracing Schemes for Stateless Receivers},
  author={Dalit Naor and Moni Naor and Jeffrey B. Lotspiech},
  journal={Electronic Colloquium on Computational Complexity (ECCC)},
We deal with the problem of a center sending a message to a group of users such that some subset of the users is considered revoked and should not be able to obtain the content of the message. We concentrate on the stateless receiver case, where the users do not (necessarily) update their state from session to session. We present a framework called the Subset-Cover framework, which abstracts a variety of revocation schemes including some previously known ones. We provide sufficient conditions… CONTINUE READING
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