Welcome to the resource topic for 2004/063
Title:
An Oblivious Transfer Protocol with Log-Squared Communication
Authors: Helger Lipmaa
Abstract:We propose a one-round 1-out-of-n computationally-private information retrieval protocol for \ell-bit strings with low-degree polylogarithmic receiver-computation, linear sender-computation and communication \Theta(k\cdot\log^2{n}+\ell\cdot\log{n}), where k is a possibly non-constant security parameter. The new protocol is receiver-private if the underlying length-flexible additively homomorphic public-key cryptosystem is IND-CPA secure. It can be transformed to a one-round computationally receiver-private and information-theoretically sender-private 1-out-of-n oblivious-transfer protocol for \ell-bit strings, that has the same asymptotic communication and is private in the standard complexity-theoretic model.
ePrint: https://eprint.iacr.org/2004/063
See all topics related to this paper.
Feel free to post resources that are related to this paper below.
Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.
For more information, see the rules for Resource Topics .