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相关论文: Variable-length Hill Cipher with MDS Key Matrix

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Some pioneering works have investigated embedding cryptographic properties in compressive sampling (CS) in a way similar to one-time pad symmetric cipher. This paper tackles the problem of constructing a CS-based symmetric cipher under the…

信息论 · 计算机科学 2016-12-14 Leo Yu Zhang , Kwok-Wo Wong , Yushu Zhang , Jiantao Zhou

Gradient inversion attacks pose significant privacy threats to distributed training frameworks such as federated learning, enabling malicious parties to reconstruct sensitive local training data from gradient communications between clients…

密码学与安全 · 计算机科学 2025-08-07 Jiajun Gu , Yuhang Yao , Shuaiqi Wang , Carlee Joe-Wong

Near MDS (NMDS) codes are closely related to interesting objects in finite geometry and have nice applications in combinatorics and cryptography. But there are many unsolved problems about construction of NMDS codes. In this paper, by using…

信息论 · 计算机科学 2024-06-17 Shanqi Pang , Chaomeng Zhang , Mengqian Chen , Miaomiao Zhang

- In this paper a session based symmetric key encryption system has been proposed and is termed as Permutated Cipher Technique (PCT). This technique is more fast, suitable and secure for larger files. In this technique the input file is…

密码学与安全 · 计算机科学 2009-08-04 Manas Paul , Tanmay Bhattacharya , Suvajit Pal , Ranit Saha

To achieve lightweight selective disclosure for protecting privacy of document holders, we propose an XML format for documents that can hide arbitrary elements using a cryptographic hash function and salts, which allows to be partially…

密码学与安全 · 计算机科学 2021-10-12 Kenji Saito , Satoki Watanabe

The distance profiles of linear block codes can be employed to design variational coding scheme for encoding message with variational length and getting lower decoding error probability by large minimum Hamming distance. %, e.g. the design…

信息论 · 计算机科学 2013-06-05 Xiaogang Liu , Yuan Luo , Kenneth W. Shum

This paper is concerned with the general multiple access wiretap channel and the existence of codes that accomplish reliability and strong secrecy. Information leakage to the eavesdropper is assessed by the variational distance metric,…

信息论 · 计算机科学 2020-03-10 Manos Athanasakos , Nicholas Kalouptsidis

As the number of hacking events and cyber threats keeps going up, it is getting harder and harder to communicate securely and keep personal information safe on the Internet. Cryptography is a very important way to deal with these problems…

密码学与安全 · 计算机科学 2023-11-29 Kashif Ishaq , Awais Ahmed Qarni

The distributed data storage systems are constructed by large number of nodes which are interconnected over a network. Each node in such peer-to-peer network is vulnerable and at a potential risk for attack. The attackers can eavesdrop the…

信息论 · 计算机科学 2016-02-08 Ninoslav Marina , Aneta Velkoska , Natasa Paunkoska

For secure communication it is not just sufficient to use strong cryptography with good and strong keys, but to actually have the assurance, that the keys in use for it are authentic and from the contact one is expecting to communicate…

密码学与安全 · 计算机科学 2016-06-16 Guy Kloss

This work describes an example of an application of a novel method for symmetric cryptography. Its purpose is to show how a regular message can be encrypted and then decrypted in an easy, yet secure way. The encrypting method introduced in…

密码学与安全 · 计算机科学 2023-08-08 Irina Pashchenko

Quantum key distribution with continuous variables already uses advantageous high-speed single-mode homodyne detection with low electronic noise at room temperature. Together with continuous-variable information encoding to nonclassical…

Multidimensional scaling (MDS) is a family of methods that embed a given set of points into a simple, usually flat, domain. The points are assumed to be sampled from some metric space, and the mapping attempts to preserve the distances…

计算几何 · 计算机科学 2014-03-05 Yonathan Aflalo , Anastasia Dubrovina , Ron Kimmel

Conjunctive Hierarchical Secret Sharing (CHSS) is a type of secret sharing that divides participants into multiple distinct hierarchical levels, with each level having a specific threshold. An authorized subset must simultaneously meet the…

密码学与安全 · 计算机科学 2026-03-24 Jian Ding , Cheng Wang , Hongju Li , Cheng Shu , Haifeng Yu

In this paper, we have proposed a public key cryptography using recursive block matrices involving generalized Fibonacci numbers over a finite field Fp. For this, we define multinacci block matrices, a type of upper triangular matrix…

密码学与安全 · 计算机科学 2022-04-20 Munesh Kumari , Jagmohan Tanti

We present a generalisation of Twisted Reed-Solomon codes containing a new large class of MDS codes. We prove that the code class contains a large subfamily that is closed under duality. Furthermore, we study the Schur squares of the new…

信息论 · 计算机科学 2018-05-14 Peter Beelen , Martin Bossert , Sven Puchinger , Johan Rosenkilde

The capacity of private information retrieval (PIR) from databases coded using maximum distance separable (MDS) codes has been previously characterized by Banawan and Ulukus, where it was assumed that the messages are encoded and stored…

信息论 · 计算机科学 2019-08-21 Hua Sun , Chao Tian

Cryptography protects users by providing functionality for the encryption of data and authentication of other users. This technology lets the receiver of an electronic message verify the sender, ensures that a message can be read only by…

密码学与安全 · 计算机科学 2011-10-10 Penmetsa V. Krishna Raja , A. S. N. Chakravarthy , P. S. Avadhani

We generalize staircase codes and tiled diagonal zipper codes, preserving their key properties while allowing each coded symbol to be protected by arbitrarily many component codewords rather than only two. This generalization which we term…

信息论 · 计算机科学 2024-12-24 Mohannad Shehadeh , Frank R. Kschischang , Alvin Y. Sukmadji , William Kingsford

Maximum distance separable (MDS) array codes constitute an important class of error-correcting codes due to their optimal distance properties and their relevance in distributed storage systems. In this paper, we investigate the construction…