Algebraic MACs and Keyed-Verification Anonymous Credentials

@inproceedings{Chase2014AlgebraicMA,
  title={Algebraic MACs and Keyed-Verification Anonymous Credentials},
  author={Melissa Chase and Sarah Meiklejohn and Gregory M. Zaverucha},
  booktitle={ACM Conference on Computer and Communications Security},
  year={2014}
}
We consider the problem of constructing anonymous credentials for use in a setting where the issuer of credentials is also the verifier, or more generally where the issuer and verifier have a shared key. In this setting we can use message authentication codes (MACs) instead of public key signatures as the basis for the credential system. To this end, we construct two algebraic MACs in prime-order groups, along with efficient protocols for issuing credentials, asserting possession of a… CONTINUE READING
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