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In the first part of the paper, we have studied the computational privacy risks in distributed computing protocols against local or global dynamics eavesdroppers, and proposed a Privacy-Preserving-Summation-Consistent (PPSC) mechanism as a…

系统与控制 · 计算机科学 2019-02-20 Yang Liu , Junfeng Wu , Ian Manchester , Guodong Shi

Let $S$ be a pool of $s$ parties and Alice be the dealer. In this paper, we propose a scheme that allows the dealer to encrypt messages in such a way that only one authorized coalition of parties (which the dealer chooses depending on the…

密码学与安全 · 计算机科学 2023-06-22 Vitaly Roman'kov

Secret sharing is a fundamental primitive in cryptography, and it can be achieved even with perfect security. However, the distribution of shares requires computational assumptions, which can compromise the overall security of the protocol.…

量子物理 · 物理学 2025-04-29 Alex B. Grilo , Lucas Hanouz , Anne Marin

Secret sharing is a cryptographic scheme to encode a secret to multiple shares being distributed to participants, so that only qualified sets of participants can restore the original secret from their shares. When we encode a secret by a…

量子物理 · 物理学 2024-04-25 Mamoru Shibata , Ryutaroh Matsumoto

Self-supervised learning (SSL) has become a popular method for generating invariant representations without the need for human annotations. Nonetheless, the desired invariant representation is achieved by utilising prior online…

机器学习 · 计算机科学 2024-09-30 Foivos Ntelemis , Yaochu Jin , Spencer A. Thomas

Self-supervised learning (SSL) frameworks consist of pretext task, and loss function aiming to learn useful general features from unlabeled data. The basic idea of most SSL baselines revolves around enforcing the invariance to a variety of…

机器学习 · 计算机科学 2024-12-05 Salman Mohamadi , Gianfranco Doretto , Donald A. Adjeroh

Transfer learning through the use of pre-trained models has become a growing trend for the machine learning community. Consequently, numerous pre-trained models are released online to facilitate further research. However, it raises…

机器学习 · 计算机科学 2022-07-26 Zhuowen Yuan , Fan Wu , Yunhui Long , Chaowei Xiao , Bo Li

This paper proposes a privacy-preserving algorithm to solve the average consensus problem based on Shamir's secret sharing scheme, in which a network of agents reach an agreement on their states without exposing their individual state until…

密码学与安全 · 计算机科学 2020-11-20 Silun Zhang , Thomas Ohlson Timoudas , Munther Dahleh

A recently proposed group key distribution scheme known as UMKESS, based on secret sharing, is shown to be insecure. Not only is it insecure, but it does not always work, and the rationale for its design is unsound. UMKESS is the latest in…

密码学与安全 · 计算机科学 2026-03-20 Chris J Mitchell

Data sharing enables critical advances in many research areas and business applications, but it may lead to inadvertent disclosure of sensitive summary statistics (e.g., means or quantiles). Existing literature only focuses on protecting a…

密码学与安全 · 计算机科学 2024-06-14 Shuaiqi Wang , Rongzhe Wei , Mohsen Ghassemi , Eleonora Kreacic , Vamsi K. Potluru

In this paper, a semiquantum secret sharing (SQSS) protocol based on x-type states is proposed, which can accomplish the goal that only when two classical communicants cooperate together can they extract the shared secret key of a quantum…

量子物理 · 物理学 2022-12-13 Ying Chen , Tian-Yu Ye

The primary assumption of conventional supervised learning or classification is that the test samples are drawn from the same distribution as the training samples, which is called closed set learning or classification. In many practical…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Sepideh Esmaeilpour , Lei Shu , Bing Liu

Knowledge graph completion (KGC) aims to predict missing facts in knowledge graphs (KGs), which is crucial as modern KGs remain largely incomplete. While training KGC models on multiple aligned KGs can improve performance, previous methods…

计算与语言 · 计算机科学 2023-12-19 Wei Tang , Zhiqian Wu , Yixin Cao , Yong Liao , Pengyuan Zhou

In this paper, a renewable, multi-use, multi-secret sharing scheme for general access structure based on one-way collision resistant hash function is presented in which each participant has to carry only one share. By applying…

密码学与安全 · 计算机科学 2019-07-09 Angsuman Das , Avishek Adhikari

We approach the challenge of addressing semi-supervised domain generalization (SSDG). Specifically, our aim is to obtain a model that learns domain-generalizable features by leveraging a limited subset of labelled data alongside a…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Chamuditha Jayanga Galappaththige , Sanoojan Baliah , Malitha Gunawardhana , Muhammad Haris Khan

We consider the leakage resilience of AG code-based ramp secret sharing schemes extending the leakage resilience of linear threshold secret sharing schemes over prime fields done by Benhamouda et al. Since there is not any explicit…

信息论 · 计算机科学 2021-06-01 Ivan Tjuawinata , Chaoping Xing

A secret sharing scheme is a cryptographic protocol to distribute a secret state in an encoded form among a group of players such that only authorized subsets of the players can reconstruct the secret. Classically, efficient secret sharing…

量子物理 · 物理学 2010-07-08 Pradeep Sarvepalli , Robert Raussendorf

In the classical Secret-Key generation model, Common Randomness is generated by two terminals based on the observation of correlated components of a common source, while keeping it secret from a non-legitimate observer. It is assumed that…

信息论 · 计算机科学 2016-01-28 Nima Tavangaran , Holger Boche , Rafael F. Schaefer

The financial sector presents many opportunities to apply various machine learning techniques. Centralized machine learning creates a constraint which limits further applications in finance sectors. Data privacy is a fundamental challenge…

机器学习 · 计算机科学 2020-07-15 Yifei Zhang , Hao Zhu

This paper considers the problem of pairwise key agreement without public communication between three users connected through a generalized multiple access channel (MAC). While two users control the channel inputs, all three users observe…

信息论 · 计算机科学 2016-03-18 Somayeh Salimi , Matthieu Bloch , Frederic Gabry , Mikael Skoglund , Panos Papadimitratos