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The widespread adoption of Machine Learning as a Service raises critical privacy and security concerns, particularly about data confidentiality and trust in both cloud providers and the machine learning models. Homomorphic Encryption (HE)…

Cryptography and Security · Computer Science 2025-10-07 Nges Brian Njungle , Eric Jahns , Michel A. Kinsy

Fully homomorphic encryption (FHE) is an encryption scheme which enables computation on encrypted data without revealing the underlying data. While there have been many advances in the field of FHE, developing programs using FHE still…

Fully homomorphic encryption (FHE) is one of the prospective tools for privacypreserving machine learning (PPML), and several PPML models have been proposed based on various FHE schemes and approaches. Although the FHE schemes are known as…

Fully homomorphic encryption (FHE) has experienced significant development and continuous breakthroughs in theory, enabling its widespread application in various fields, like outsourcing computation and secure multi-party computing, in…

Cryptography and Security · Computer Science 2023-03-21 Yanwei Gong , Xiaolin Chang , Jelena Mišić , Vojislav B. Mišić , Jianhua Wang , Haoran Zhu

Fully Homomorphic Encryption (FHE) is known to be extremely computationally-intensive, application-specific accelerators emerged as a powerful solution to narrow the performance gap. Nonetheless, due to the increasing complexities in FHE…

Hardware Architecture · Computer Science 2024-12-16 Lin Ding , Song Bian , Penggao He , Yan Xu , Gang Qu , Jiliang Zhang

Data privacy concerns often prevent the use of cloud-based machine learning services for sensitive personal data. While homomorphic encryption (HE) offers a potential solution by enabling computations on encrypted data, the challenge is to…

Cryptography and Security · Computer Science 2021-03-08 Kanthi Sarpatwar , Karthik Nandakumar , Nalini Ratha , James Rayfield , Karthikeyan Shanmugam , Sharath Pankanti , Roman Vaculin

Privacy concerns have thrust privacy-preserving computation into the spotlight. Homomorphic encryption (HE) is a cryptographic system that enables computation to occur directly on encrypted data, providing users with strong privacy (and…

Cryptography and Security · Computer Science 2024-05-21 Juran Ding , Yuanzhe Liu , Lingbin Sun , Brandon Reagen

Since the first theoretically feasible full homomorphic encryption (FHE) scheme was proposed in 2009, great progress has been achieved. These improvements have made FHE schemes come off the paper and become quite useful in solving some…

Cryptography and Security · Computer Science 2024-03-19 Yuqi Guo , Lin Li , Zhongxiang Zheng , Hanrui Yun , Ruoyan Zhang , Xiaolin Chang , Zhixuan Gao

Threshold fully homomorphic encryption (ThFHE) enables multiple parties to compute functions over their sensitive data without leaking data privacy. Most of existing ThFHE schemes are restricted to full threshold and require the…

Cryptography and Security · Computer Science 2025-01-22 Yijia Chang , Songze Li

Fully Homomorphic Encryption (FHE) relies heavily on the Number Theoretic Transform (NTT), making NTT a major performance bottleneck due to its intensive polynomial computations. Hybrid Homomorphic Encryption (HHE), which integrates…

Hardware Architecture · Computer Science 2026-03-03 Hang Gu , Teng Wang , Qianyu Cheng , Jinao Li , Zhendong Zheng , Lei Gong , Wenqi Lou , Xi Li , Xuehai Zhou

Homomorphic encryption (HE) enables computations directly on encrypted data, offering strong cryptographic guarantees for secure and privacy-preserving data storage and query execution. However, despite its theoretical power, practical…

Databases · Computer Science 2026-03-02 Boram Jung , Yuliang Li , Hung-Wei Tseng

Fully Homomorphic Encryption (FHE), a novel cryptographic theory enabling computation directly on ciphertext data, offers significant security benefits but is hampered by substantial performance overhead. In recent years, a series of…

Cryptography and Security · Computer Science 2024-03-18 Shengyu Fan , Xianglong Deng , Zhuoyu Tian , Zhicheng Hu , Liang Chang , Rui Hou , Dan Meng , Mingzhe Zhang

The widespread deployment of products powered by machine learning models is raising concerns around data privacy and information security worldwide. To address this issue, Federated Learning was first proposed as a privacy-preserving…

Every commercially available, state-of-the-art neural network consume plain input data, which is a well-known privacy concern. We propose a new architecture based on homomorphic encryption, which allows the neural network to operate on…

Cryptography and Security · Computer Science 2025-02-28 Marcos Florencio , Luiz Alencar , Bianca Lima

Fully Homomorphic Encryption (FHE) is an encryption scheme that allows for computation to be performed directly on encrypted data, effectively closing the loop on secure and outsourced computing. Data is encrypted not only during rest and…

Cryptography and Security · Computer Science 2025-07-11 Karthik Garimella , Austin Ebel , Brandon Reagen

Machine learning (ML) is widely used today, especially through deep neural networks (DNNs), however, increasing computational load and resource requirements have led to cloud-based solutions. To address this problem, a new generation of…

Cryptography and Security · Computer Science 2025-06-23 Farzad Nikfam , Raffaele Casaburi , Alberto Marchisio , Maurizio Martina , Muhammad Shafique

Fully Homomorphic Encryption (FHE) allows a third party to perform arbitrary computations on encrypted data, learning neither the inputs nor the computation results. Hence, it provides resilience in situations where computations are carried…

Cryptography and Security · Computer Science 2022-02-04 Alexander Viand , Patrick Jattke , Anwar Hithnawi

Machine learning (ML) algorithms are increasingly important for the success of products and services, especially considering the growing amount and availability of data. This also holds for areas handling sensitive data, e.g. applications…

Cryptography and Security · Computer Science 2023-09-19 Martin Nocker , David Drexel , Michael Rader , Alessio Montuoro , Pascal Schöttle

Fully Homomorphic Encryption (FHE) enables computations on encrypted data, preserving confidentiality without the need for decryption. However, FHE is often hindered by significant performance overhead, particularly for high-precision and…

Cryptography and Security · Computer Science 2024-09-06 Chao Wang , Shubing Yang , Xiaoyan Sun , Jun Dai , Dongfang Zhao

Fully homomorphic encryption (FHE) has recently attracted significant attention as both a cryptographic primitive and a systems challenge. Given the latest advances in accelerated computing, FHE presents a promising opportunity for…