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The paper proposes an iterative Hidden Markov Model (HMM) for decoding a Low Density Parity Check (LDPC) code. It is demonstrated that a first-order HMM provides a natural framework for the decoder. The HMM is time-homogeneous with a fixed…

Signal Processing · Electrical Eng. & Systems 2025-09-29 Jan C Olivier , Etienne Barnard

A privacy-preserving Support Vector Machine (SVM) computing scheme is proposed in this paper. Cloud computing has been spreading in many fields. However, the cloud computing has some serious issues for end users, such as unauthorized use…

Cryptography and Security · Computer Science 2018-09-20 Takahiro Maekawa , Takayuki Nakachi , Sayaka Shiota , Hitoshi Kiya

The Hill Cipher is a classical symmetric cipher which breaks plaintext into blocks of size m and then multiplies each block by an m by m key matrix to yield ciphertext. However, it is well known that the Hill cipher succumbs to…

Cryptography and Security · Computer Science 2012-10-09 Kondwani Magamba , Solomon Kadaleka , Ansley Kasambara

The implementation difficulties of combining distribution matching (DM) and dematching (invDM) for probabilistic shaping (PS) with soft-decision forward error correction (FEC) coding can be relaxed by reverse concatenation, for which the…

Signal Processing · Electrical Eng. & Systems 2024-01-25 Tsuyoshi Yoshida , Magnus Karlsson , Erik Agrell

This paper proposes to put forward an innovative algorithm for symmetric key block cipher named as "Triple Prime Symmetric Key Block Cipher with Variable Key-Spaces (TPSKBCVK)" that employs triple prime integers as private key-spaces of…

Cryptography and Security · Computer Science 2012-03-19 Abhijit Chowdhury , Angshu Kumar Sinha , Saurabh Dutta

Hyperdimensional computing (HDC) is an emerging learning paradigm that computes with high dimensional binary vectors. It is attractive because of its energy efficiency and low latency, especially on emerging hardware -- but HDC suffers from…

Machine Learning · Computer Science 2023-01-06 Tao Yu , Yichi Zhang , Zhiru Zhang , Christopher De Sa

We revisit the problem of secure aggregation of high-dimensional vectors in a two-server system such as Prio. These systems are typically used to aggregate vectors such as gradients in private federated learning, where the aggregate itself…

Cryptography and Security · Computer Science 2025-07-15 Hilal Asi , Vitaly Feldman , Hannah Keller , Guy N. Rothblum , Kunal Talwar

A common problem when using model predictive control (MPC) in practice is the satisfaction of safety specifications beyond the prediction horizon. While theoretical works have shown that safety can be guaranteed by enforcing a suitable…

Robotics · Computer Science 2025-07-09 Ji Yin , Oswin So , Eric Yang Yu , Chuchu Fan , Panagiotis Tsiotras

The closest vector problem (CVP) and shortest (nonzero) vector problem (SVP) are the core algorithmic problems on Euclidean lattices. They are central to the applications of lattices in many problems of communications and cryptography.…

Information Theory · Computer Science 2016-11-17 Laura Luzzi , Damien Stehle , Cong Ling

The VVC codec is applied to the task of multispectral image (MSI) compression using adaptive and scalable coding structures. In a 'plain' VVC approach, concepts from picture-to-picture temporal prediction are employed for decorrelation…

Image and Video Processing · Electrical Eng. & Systems 2023-01-11 Philipp Seltsam , Priyanka Das , Mathias Wien

Visual sensors serve as a critical component of the Internet of Things (IoT). There is an ever-increasing demand for broad applications and higher resolutions of videos and cameras in smart homes and smart cities, such as in security…

Image and Video Processing · Electrical Eng. & Systems 2021-03-30 Amir Fotovvat , Khan A. Wahid

In this paper we propose a tokenization algorithm of Reversible Hybrid type, as defined in PCI DSS guidelines for designing a tokenization solution, based on a block cipher with a secret key and (possibly public) additional input. We…

Cryptography and Security · Computer Science 2019-04-26 Riccardo Longo , Massimiliano Sala , Riccardo Aragona

Vector Stream Cipher (VSC) is a stream cipher which consists of permutation polynomial over a ring of modulo $2^w$. The algorithm for generating key stream is very simple and the encryption is very fast. Some theoretical attacks for VSC…

Information Theory · Computer Science 2016-11-08 Atsushi Iwasaki , Ken Umeno

Continuous-variable quantum secret sharing (CVQSS) is a promising approach to ensuring multi-party information security. While CVQSS offers practical ease of implementation, its present performance remains limited. In this paper, we propose…

Quantum Physics · Physics 2025-08-14 Qin Liao , Chong Tang , Qingquan Peng , Chao Ding , Lingjin Zhu , Yijun Wang , Xiquan Fu

With the emerging of mobile communication technologies, we are entering the fifth generation mobile communication system (5G) era. Various application scenarios will arise in the 5G era to meet the different service requirements. Different…

Cryptography and Security · Computer Science 2018-11-12 Jingwei Liu , Lihuan Zhang , Rong Sun , Xiaojiang Du , Mohsen Guizani

Vision-Language Models (VLMs) extend large language models with visual reasoning, but their multimodal design also introduces new, underexplored vulnerabilities. Existing multimodal red-teaming methods largely rely on brittle templates,…

Cryptography and Security · Computer Science 2026-05-27 Qilin Liao , Anamika Lochab , Ruqi Zhang

Recent deep-learning-based video compression methods brought coding gains over conventional codecs such as AVC and HEVC. However, learning-based codecs generally require considerable computation time and model complexity. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Hochang Rhee , Seyun Kim , Nam Ik Cho

In this paper, a new Volt/Var Control (VVC) scheme is proposed to facilitate the coordination between the conventional VVC devices and the new smart PV inverters to provide an effective voltage control on a system with high PV penetration.…

Signal Processing · Electrical Eng. & Systems 2019-01-01 Yue Shi , Mesut Baran

Our first focus is the Capacitated Partition Vertex Cover (C-PVC) problem in hypergraphs. In C-PVC, we are given a hypergraph with capacities on its vertices and a partition of the hyperedge set into $\omega$ distinct groups. The objective…

Data Structures and Algorithms · Computer Science 2025-12-22 Rajni Dabas , Samir Khuller , Emilie Rivkin

Virtual Trusted Platform modules (TPMs) were proposed as a software-based alternative to the hardware-based TPMs to allow the use of their cryptographic functionalities in scenarios where multiple TPMs are required in a single platform,…

Cryptography and Security · Computer Science 2013-08-08 Sami Alsouri , Thomas Feller , Sunil Malipatlolla , Stefan Katzenbeisser
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