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Published in:
2014 | OriginalPaper | Chapter
Solving LPN Using Covering Codes
Authors : Qian Guo, Thomas Johansson, Carl Löndahl
Published in: Advances in Cryptology – ASIACRYPT 2014
Publisher: Springer Berlin Heidelberg
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We present a new algorithm for solving the LPN problem. The algorithm has a similar form as some previous methods, but includes a new key step that makes use of approximations of random words to a nearest codeword in a linear code. It outperforms previous methods for many parameter choices. In particular, we can now solve instances suggested for 80-bit security in cryptographic schemes like HB variants, LPN-C and Lapin, in less than 2
80
operations.