Welcome to the resource topic for 2018/603
Title:
Actively Secure OT-Extension from q-ary Linear Codes
Authors: Ignacio Cascudo, René Bødker Christensen, Jaron Skovsted Gundersen
Abstract:We consider recent constructions of 1-out-of-N OT-extension from Kolesnikov and Kumaresan (CRYPTO 2013) and from Orrú et al. (CT-RSA 2017), based on binary error-correcting codes. We generalize their constructions such that q-ary codes can be used for any prime power q. This allows to reduce the number of base 1-out-of-2 OT’s that are needed to instantiate the construction for any value of N, at the cost of increasing the complexity of the remaining part of the protocol. We analyze these trade-offs in some concrete cases.
ePrint: https://eprint.iacr.org/2018/603
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