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Secure multi-party computation (SMPC) protocols allow several parties that distrust each other to collectively compute a function on their inputs. In this paper, we introduce a protocol that lifts classical SMPC to quantum SMPC in a…

Quantum Physics · Physics 2023-03-17 Theodoros Kapourniotis , Elham Kashefi , Dominik Leichtle , Luka Music , Harold Ollivier

In this paper, we study the problem of secure ML inference against a malicious client and a semi-trusted server such that the client only learns the inference output while the server learns nothing. This problem is first formulated by…

Cryptography and Security · Computer Science 2022-10-28 Guowen Xu , Xingshuo Han , Tianwei Zhang , Shengmin Xu , Jianting Ning , Xinyi Huang , Hongwei Li , Robert H. Deng

Secure multi-party quantum computation (MPQC) protocol is a versatile tool that enables error-free distributed quantum computation to a group of $n$ mutually distrustful quantum nodes even when some of the quantum nodes do not follow the…

Quantum Physics · Physics 2022-11-03 Petr A. Mishchenko , Keita Xagawa

We present a framework for experimenting with secure multi-party computation directly in TensorFlow. By doing so we benefit from several properties valuable to both researchers and practitioners, including tight integration with ordinary…

Cryptography and Security · Computer Science 2018-10-24 Morten Dahl , Jason Mancuso , Yann Dupis , Ben Decoste , Morgan Giraud , Ian Livingstone , Justin Patriquin , Gavin Uhma

In the context of prediction-as-a-service, concerns about the privacy of the data and the model have been brought up and tackled via secure inference protocols. These protocols are built up by using single or multiple cryptographic tools…

Cryptography and Security · Computer Science 2024-04-26 Shuangyi Chen , Ashish Khisti

The availability of public computing resources in the cloud has revolutionized data analysis, but requesting cloud resources often involves complex decisions for consumers. Under the current pricing mechanisms, cloud service providers offer…

Databases · Computer Science 2017-06-20 Yue Wang , Alexandra Meliou , Gerome Miklau

Federated learning enables multiple data owners to jointly train a machine learning model without revealing their private datasets. However, a malicious aggregation server might use the model parameters to derive sensitive information about…

Cryptography and Security · Computer Science 2022-02-16 Yash More , Prashanthi Ramachandran , Priyam Panda , Arup Mondal , Harpreet Virk , Debayan Gupta

Secure multiparty computation enables the joint evaluation of multivariate functions across distributed users while ensuring the privacy of their local inputs. This field has become increasingly urgent due to the exploding demand for…

Quantum Physics · Physics 2026-01-07 Kfir Sulimany , Sri Krishna Vadlamani , Ryan Hamerly , Prahlad Iyengar , Dirk Englund

Cloud service providers typically provide different types of virtual machines (VMs) to cloud users with various requirements. Thanks to its effectiveness and fairness, auction has been widely applied in this heterogeneous resource…

Cryptography and Security · Computer Science 2020-01-06 Tianjiao Ni , Zhili Chen , Lin Chen , Hong Zhong , Shun Zhang , Yan Xu

Quantum key agreement enables remote participants to fairly establish a secure shared key based on their private inputs. In the circular-type multiparty quantum key agreement mode, two or more malicious participants can collude together to…

Quantum Physics · Physics 2023-06-22 Hussein Abulkasim , Atefeh Mashatan , Shohini Ghose

A digital goods auction is a type of auction where potential buyers bid the maximal price that they are willing to pay for a certain item, which a seller can produce at a negligible cost and in unlimited quantity. To maximise her benefits,…

Information Theory · Computer Science 2020-09-22 Patrick Ah-Fat , Michael Huth

Cloud service providers offer their customers with on-demand and cost-effective services, scalable computing, and network infrastructures. Enterprises migrate their services to the cloud to utilize the benefit of cloud computing such as…

Cryptography and Security · Computer Science 2019-04-04 Hootan Alavizadeh , Hooman Alavizadeh , Dong Seong Kim , Julian Jang-Jaccard , Masood Niazi Torshiz

In the modern era of computing, machine learning tools have demonstrated their potential in vital sectors, such as healthcare and finance, to derive proper inferences. The sensitive and confidential nature of the data in such sectors raises…

Cryptography and Security · Computer Science 2021-12-28 Ajith Suresh

The privacy of machine learning models has become a significant concern in many emerging Machine-Learning-as-a-Service applications, where prediction services based on well-trained models are offered to users via pay-per-query. The lack of…

Machine Learning · Computer Science 2022-06-24 Xun Xian , Mingyi Hong , Jie Ding

In this paper we explore several contexts where an adversary has an upper hand over the defender by using special hardware in an attack. These include password processing, hard-drive protection, cryptocurrency mining, resource sharing, code…

Cryptography and Security · Computer Science 2018-01-31 Alex Biryukov , Dmitry Khovratovich

The distributed denial of service (DDoS) attack is detrimental to businesses and individuals as we are heavily relying on the Internet. Due to remarkable profits, crackers favor DDoS as cybersecurity weapons in attacking servers, computers,…

Cryptography and Security · Computer Science 2021-04-02 Jianhua Li , Ximeng Liu , Jiong Jin , Shui Yu

In this paper we propose a novel protocol that allows suppliers and grid operators to collect users' aggregate metering data in a secure and privacy-preserving manner. We use secure multiparty computation to ensure privacy protection. In…

Cryptography and Security · Computer Science 2019-03-15 Mustafa A. Mustafa , Sara Cleemput , Abelrahaman Aly , Aysajan Abidin

In several settings of practical interest, two parties seek to collaboratively perform inference on their private data using a public machine learning model. For instance, several hospitals might wish to share patient medical records for…

Cryptography and Security · Computer Science 2018-12-05 Siddharth Garg , Zahra Ghodsi , Carmit Hazay , Yuval Ishai , Antonio Marcedone , Muthuramakrishnan Venkitasubramaniam

As one of the most important basic operations, matrix multiplication computation (MMC) has varieties of applications in the scientific and engineering community such as linear regression, k-nearest neighbor classification and biometric…

Cryptography and Security · Computer Science 2021-05-13 Chun Liu , Xuexian Hu , Xiaofeng Chen , Jianghong Wei , Wenfen Liu

In the medium term, quantum computing must tackle two key challenges: fault tolerance and security. Fault tolerance will be solved with sufficiently high quality experiments on large numbers of qubits, but the scale and complexity of these…

Quantum Physics · Physics 2024-04-11 Ethan Davies , Alastair Kay