Implementing AES via an Actively/Covertly Secure Dishonest-Majority MPC Protocol

  title={Implementing AES via an Actively/Covertly Secure Dishonest-Majority MPC Protocol},
  author={Ivan Damg{\aa}rd and Marcel Keller and Enrique Larraia and Christian Miles and Nigel P. Smart},
  journal={IACR Cryptology ePrint Archive},
We describe an implementation of the protocol of Damg̊ard, Pastro, Smart and Zakarias (SPDZ/Speedz) for multi-party computation in the presence of a dishonest majority of active adversaries. We present a number of modifications to the protocol; the first reduces the security to covert security, but produces significant performance enhancements; the second enables us to perform bit-wise operations in characteristic two fields. As a bench mark application we present the evaluation of the AES… CONTINUE READING
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