An Algorithmic Reduction Theory for Binary Codes: LLL and more

نویسندگان

چکیده

In this article, we propose an adaptation of the algorithmic reduction theory lattices to binary codes. This includes celebrated LLL algorithm (Lenstra, Lenstra, Lovasz, 1982), as well adaptations associated algorithms such Nearest Plane Algorithm Babai (1986). Interestingly, codes can be interpreted version bound Griesmer (1960) on minimal distance a code. Using these algorithms, demonstrate—both with heuristic analysis and in practice—a small polynomial speed-up over Information-Set Decoding Lee Brickell (1988) for random appears first that is not based time-memory trade-off. The above should read very preliminary example potential codes, cryptanalysis.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

LLL-reduction for integer knapsacks

Given a matrix A ∈ Zm×n satisfying certain regularity assumptions, a wellknown integer programming problem asks to find an integer point in the associated knapsack polytope P(A,b)= {x ∈R≥0 :Ax = b} or determine that no such point exists. We obtain an LLL-based polynomial time algorithm that solves the problem subject to a constraint on the location of the vector b.

متن کامل

Accelerated Slide- and LLL-Reduction

Given an LLL-basis B of dimension n = hk we accelerate slide-reduction with blocksize k to run under a reasonable assumption in 1 6 nh log1+ε α local SVP-computations in dimension k, where α ≥ 4 3 measures the quality of the given LLL-basis and ε is the quality of slide-reduction. If the given basis B is already slide-reduced for blocksize k/2 then the number of local SVP-computations for slide...

متن کامل

Partial LLL Reduction

The Lenstra-Lenstra-Lovasz (LLL) reduction has wide applications in digital communications. It can greatly improve the speed of the sphere decoding (SD) algorithms for solving an integer least squares (ILS) problem and the performance of the Babai integer point, a suboptimal solution to the ILS problem. Recently Ling and Howgrave-Graham proposed the so-called effective LLL (ELLL) reduction. It ...

متن کامل

Fast LLL-type lattice reduction

We modify the concept of LLL-reduction of lattice bases in the sense of Lenstra, Lenstra, Lovász [LLL82] towards a faster reduction algorithm. We organize LLL-reduction in segments of the basis. Our SLLL-bases approximate the successive minima of the lattice in nearly the same way as LLL-bases. For integer lattices of dimension n given by a basis of length 2, SLLL-reduction runs in O(n) bit ope...

متن کامل

The Algorithmic LLL and the Witness Tree Lemma

We consider the recent works of [3, 31, 2] that provide tools for analyzing focused stochastic local search algorithms that arise from algorithmizations of the Lovász Local Lemma [17] (LLL) in general probability spaces. These are algorithms which search a state space probabilistically by repeatedly selecting a “flaw” that is currently present and moving to a random nearby state in an effort to...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: IEEE Transactions on Information Theory

سال: 2022

ISSN: ['0018-9448', '1557-9654']

DOI: https://doi.org/10.1109/tit.2022.3143620