Paper 2013/021

Rate-Limited Secure Function Evaluation

Özgür Dagdelen, Payman Mohassel, and Daniele Venturi


We introduce the notion of rate-limited secure function evaluation (RL-SFE). Loosely speaking, in an RL-SFE protocol participants can monitor and limit the number of distinct inputs (i.e., rate) used by their counterparts in multiple executions of an SFE, in a private and verifiable manner. The need for RL-SFE naturally arises in a variety of scenarios: e.g., it enables service providers to ``meter'' their customers' usage without compromising their privacy, or can be used to prevent oracle attacks against SFE constructions. We consider three variants of RL-SFE providing different levels of security. As a stepping stone, we also formalize the notion of commit-first SFE (cf-SFE) wherein parties are committed to their inputs before each SFE execution. We provide compilers for transforming any cf-SFE protocol into each of the three RL-SFE variants. Our compilers are accompanied with simulation-based proofs of security in the standard model and show a clear tradeoff between the level of security offered and the overhead required. Moreover, motivated by the fact that in many client-server applications clients do not keep state, we also describe a general approach for transforming the resulting RL-SFE protocols into stateless ones. As a case study, we take a closer look at the oblivious polynomial evaluation (OPE) protocol of Hazay and Lindell, show that it is commit-first and instantiate efficient rate-limited variants of it.

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Publication info
A major revision of an IACR publication in PKC 2013
secure function evaluationsecure meteringoracle attacksoblivious polynomial evaluation
Contact author(s)
oezguer dagdelen @ cased de
2016-03-10: last of 2 revisions
2013-01-18: received
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      author = {Özgür Dagdelen and Payman Mohassel and Daniele Venturi},
      title = {Rate-Limited Secure Function Evaluation},
      howpublished = {Cryptology ePrint Archive, Paper 2013/021},
      year = {2013},
      note = {\url{}},
      url = {}
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