Embed-Augment-Recover : Function Private Predicate Encryption from Minimal Assumptions in the Public-Key Setting

@inproceedings{Patranabis2017EmbedAugmentRecoverF,
  title={Embed-Augment-Recover : Function Private Predicate Encryption from Minimal Assumptions in the Public-Key Setting},
  author={Sikhar Patranabis and Debdeep Mukhopadhyay},
  year={2017}
}
We present a new class of public-key predicate encryption schemes that are provably function private in the standard model under well-known cryptographic assumptions, and assume predicate distributions satisfying realistic min-entropy requirements. More concretely, we present public-key constructions for identity-based encryption (IBE) and inner-product encryption (IPE) that are computationally function private in the standard model under a family of weaker variants of the DLIN assumption… CONTINUE READING