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Reports

The Support Splitting Algorithm

Nicolas Sendrier 1
1 CODES - Coding and cryptography
Inria Paris-Rocquencourt
Abstract : Two linear codes are permutation-equivalent if they are equal up to a fixed permutation of the codewords coordinates. We present here an algorithm able to compute this permutation. We introduce the concept of signature: a property of a position of a code such that the set of all signatures of a given code is globally invariant by permutation. To compute the permutati- on between two equivalent codes, one needs a signature which is both discrimin- ant and easy to compute. The weight enumerator of the hull of a code provides a signature which has such properties in most cases.
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https://hal.inria.fr/inria-00073037
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Submitted on : Wednesday, May 24, 2006 - 11:40:32 AM
Last modification on : Thursday, February 3, 2022 - 11:13:53 AM
Long-term archiving on: : Sunday, April 4, 2010 - 9:37:43 PM

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  • HAL Id : inria-00073037, version 1

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Nicolas Sendrier. The Support Splitting Algorithm. [Research Report] RR-3637, INRIA. 1999. ⟨inria-00073037⟩

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