A New Algorithm for Solving Ring-LPN With a Reducible Polynomial
A New Algorithm for Solving Ring-LPN With a Reducible Polynomial
复制标题
一种求解可约多项式环LPN的新算法
DOI:
10.1109/tit.2015.2475738
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发表时间:
2014-09
影响因子:
2.5
通讯作者:
Carl Löndahl
中科院分区:
文献类型:
--
作者:
Qian Guo;Thomas Johansson;Carl Löndahl
The learning parity with noise (LPN) problem has recently proved to be of great importance in cryptology. A special and very useful case is the Ring-LPN problem, which typically provides improved efficiency in the constructed cryptographic primitive. We present a new algorithm for solving the Ring-LPN problem in the case when the polynomial used is reducible. It greatly outperforms the previous algorithms for solving this problem. Using the algorithm, we can break the Lapin authentication protocol for the proposed instance using a reducible polynomial, in ~271 bit operations.
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