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In this paper we study recent reaction attacks against QC-LDPC and QC-MDPC code-based cryptosystems, which allow an opponent to recover the private parity-check matrix through its distance spectrum by observing a sufficiently high number of…

Information Theory · Computer Science 2018-05-15 Paolo Santini , Marco Baldi , Giovanni Cancellieri , Franco Chiaraluce

Lambda lifting is a well-known transformation, traditionally employed for compiling functional programs to supercombinators. However, more recent abstract machines for functional languages like OCaml and Haskell tend to do closure…

Programming Languages · Computer Science 2019-10-29 Sebastian Graf , Simon Peyton Jones

Classical Goppa codes are a well-known class of codes with applications in code-based cryptography, which are a special case of alternant codes. Many papers are devoted to the search for Goppa codes with a cyclic extension or with a cyclic…

Information Theory · Computer Science 2024-05-29 Xue Jia , Fengwei Li , Huan Sun , Qin Yue

We propose a decoding algorithm for a class of convolutional codes called skew BCH convolutional codes. These are convolutional codes of designed Hamming distance endowed with a cyclic structure yielding a left ideal of a non-commutative…

Information Theory · Computer Science 2016-07-26 José Gómez-Torrecillas , F. J. Lobillo , Gabriel Navarro

We present a novel optimization-based decoding algorithm for LDPC codes that is suitable for hardware architectures specialized to feed-forward neural networks. The algorithm is based on the projected gradient descent algorithm with a…

Information Theory · Computer Science 2019-01-16 Tadashi Wadayama , Satoshi Takabe

We propose variations of the class of hidden monomial cryptosystems in order to make it resistant to all known attacks. We use identities built upon a single bivariate polynomial equation with coefficients in a finite field. Indeed, it can…

Cryptography and Security · Computer Science 2007-05-23 Ilia Toli

Twisted Reed-Solomon (TRS) codes are a family of codes that contains a large number of maximum distance separable codes that are non-equivalent to Reed--Solomon codes. TRS codes were recently proposed as an alternative to Goppa codes for…

Information Theory · Computer Science 2020-03-24 Julien Lavauzelle , Julian Renner

Given a real dataset and a computation family, we wish to encode and store the dataset in a distributed system so that any computation from the family can be performed by accessing a small number of nodes. In this work, we focus on the…

Information Theory · Computer Science 2024-05-10 Vinayak Ramkumar , Netanel Raviv , Itzhak Tamo

We define Convolutional Goppa Codes over algebraic curves and construct their corresponding dual codes. Examples over the projective line and over elliptic curves are described, obtaining in particular some Maximum-Distance Separable (MDS)…

Optimization and Control · Mathematics 2016-11-15 J. M. Muñoz Porras , J. A. Dominguez Perez , J. I. Iglesias Curto , G. Serrano Sotelo

We give a computational algorithm for computing Ext groups between bounded complexes of coherent sheaves on a projective variety, and we describe an implementation of this algorithm in Macaulay2. In particular, our results yield methods for…

Algebraic Geometry · Mathematics 2025-09-30 Michael K. Brown , Souvik Dey , Guanyu Li , Mahrud Sayrafi

The paper introduces a new lossless, highly robust compression algorithm that similar with LZW algorithm, yet the algorithm discards dictionary processing and uses irregular sequences with massive, random information instead. Then the paper…

Signal Processing · Electrical Eng. & Systems 2020-06-24 Rui Zhu

Nonlinear differential equations (DEs) are used in a wide range of scientific problems to model complex dynamic systems. The differential equations often contain unknown parameters that are of scientific interest, which have to be estimated…

Computation · Statistics 2021-09-07 Shijia Wang , Shufei Ge , Renny Doig , Liangliang Wang

Semantic code search, which aims to retrieve code snippets relevant to a given natural language query, has attracted many research efforts with the purpose of accelerating software development. The huge amount of online publicly available…

Software Engineering · Computer Science 2020-10-20 Hao Wang , Jia Zhang , Yingce Xia , Jiang Bian , Chao Zhang , Tie-Yan Liu

It is a long standing open problem to find search to decision reductions for structured versions of the decoding problem of linear codes. Such results in the lattice-based setting have been carried out using number fields: Polynomial-LWE,…

Cryptography and Security · Computer Science 2022-03-01 Maxime Bombar , Alain Couvreur , Thomas Debris-Alazard

Implementing robust quantum error correction (QEC) is imperative for harnessing the promise of quantum technologies. We introduce a framework that takes {\it any} classical code and explicitly constructs the corresponding QEC code. Our…

Quantum Physics · Physics 2024-11-27 Ramis Movassagh , Yingkai Ouyang

In this article we consider linear codes coming from skew-symmetric determinantal varieties, which are defined by the vanishing of minors of a certain fixed size in the space of skew-symmetric matrices. In odd characteristic, the minimum…

Combinatorics · Mathematics 2018-10-10 Peter Beelen , Prasant Singh

In this paper, we propose a new variant of the McEliece cryptosystem using two families of quasi-cyclic codes: low density parity check codes (QC-LDPC) and moderate density parity check codes (QC-MDPC). Due to the low weight codewords in…

Cryptography and Security · Computer Science 2022-12-06 Belkacem Imine , Naima Hadj-Said , Adda Ali-Pacha

Gabidulin codes, originally defined over finite fields, are an important class of rank metric codes with various applications. Recently, their definition was generalized to certain fields of characteristic zero and a Welch--Berlekamp like…

Information Theory · Computer Science 2016-04-22 Sven Müelich , Sven Puchinger , David Mödinger , Martin Bossert

Detectability of failures of linear programming (LP) decoding and its potential for improvement by adding new constraints motivate the use of an adaptive approach in selecting the constraints for the LP problem. In this paper, we make a…

Information Theory · Computer Science 2007-07-13 Mohammad H. Taghavi N. , Paul H. Siegel

Semidefinite Programming (SDP) provides tight lower bounds for Optimal Power Flow problems. However, solving large-scale SDP problems requires exploiting sparsity. In this paper, we experiment several clique decomposition algorithms that…

Optimization and Control · Mathematics 2019-12-20 Julie Sliwak , Miguel Anjos , Lucas Létocart , Jean Maeght , Emiliano Traversi