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Due to increasing concerns of data privacy, databases are being encrypted before they are stored on an untrusted server. To enable search operations on the encrypted data, searchable encryption techniques have been proposed. Representative…

密码学与安全 · 计算机科学 2020-01-27 Yanjun Pan , Alon Efrat , Ming Li , Boyang Wang , Hanyu Quan , Joseph Mitchell , Jie Gao , Esther Arkin

Fully homomorphic encryption (FHE) enables a simple, attractive framework for secure search. Compared to other secure search systems, no costly setup procedure is necessary; it is sufficient for the client merely to upload the encrypted…

密码学与安全 · 计算机科学 2021-09-17 Seung Geol Choi , Dana Dachman-Soled , S. Dov Gordon , Linsheng Liu , Arkady Yerukhimovich

New cryptographic techniques such as homomorphic encryption (HE) allow computations to be outsourced to and evaluated blindfolded in a resourceful cloud. These computations often require private data owned by multiple participants, engaging…

密码学与安全 · 计算机科学 2020-08-13 Asma Aloufi , Peizhao Hu , Yongsoo Song , Kristin Lauter

Coding Opportunistically (COPE) is a simple but very effective data coding mechanism in the wireless network. However, COPE leaves risks for attackers easily getting the private information saved in the packets, when they move through the…

密码学与安全 · 计算机科学 2018-06-15 Ngoc Hong Tran , Cao-Vien Phung , Binh Quoc Nguyen , Leila Bahri

Homomorphic Encryption (HE) is a cryptographic tool that allows performing computation under encryption, which is used by many privacy-preserving machine learning solutions, for example, to perform secure classification. Modern deep…

密码学与安全 · 计算机科学 2024-11-05 Nir Drucker , Itamar Zimerman

Homomorphic encryption (HE) is a privacy-preserving computation technique that enables computation on encrypted data. Today, the potential of HE remains largely unrealized as it is impractically slow, preventing it from being used in real…

密码学与安全 · 计算机科学 2024-05-14 Negar Neda , Austin Ebel , Benedict Reynwar , Brandon Reagen

Homomorphic encryption is an encryption method that enables computing over encrypted data. This has a wide range of real world ramifications such as being able to blindly compute a search result sent to a remote server without revealing its…

密码学与安全 · 计算机科学 2016-06-13 Sudharaka Palamakumbura , Hamid Usefi

Attribute-based encryption (ABE) is a promising cryptographic mechanism for providing confidentiality and fine-grained access control in the cloud-based area. However, due to high computational overhead, common ABE schemes are not suitable…

密码学与安全 · 计算机科学 2021-07-22 Mostafa Chegenizadeh , Mohammad Ali , Javad Mohajeri , Mohammad Reza Aref

Statistical models for networks with complex dependencies pose particular challenges for model selection and evaluation. In particular, many well-established statistical tools for selecting between models assume conditional independence of…

统计方法学 · 统计学 2019-08-20 Fan Yin , Nolan Edward Phillips , Carter T. Butts

Homomorphic encryption is a sophisticated encryption technique that allows computations on encrypted data to be done without the requirement for decryption. This trait makes homomorphic encryption appropriate for safe computation in…

密码学与安全 · 计算机科学 2023-05-11 Nimish Jain , Aswani Kumar Cherukuri

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…

数据库 · 计算机科学 2026-03-02 Boram Jung , Yuliang Li , Hung-Wei Tseng

Ciphertext-policy hierarchical attribute-based encryption (CP-HABE) is a promising cryptographic primitive for enforcing the fine-grained access control with scalable key delegation and user revocation mechanisms on the outsourced encrypted…

密码学与安全 · 计算机科学 2018-10-16 Mohammad Ali , Javad Mohajeri , Mohammad-Reza Sadeghi

Homomorphic encryption is a powerful cryptographic tool that enables secure computations on the private data. It evaluates any function for any operation securely on the encrypted data without knowing its corresponding plaintext. For…

密码学与安全 · 计算机科学 2025-09-18 Giovanni Giuseppe Grimaldi

Homomorphic Encryption (HE) is one of the most promising post-quantum cryptographic schemes that enable privacy-preserving computation on servers. However, noise accumulates as we perform operations on HE-encrypted data, restricting the…

密码学与安全 · 计算机科学 2022-11-01 Jongmin Kim , Gwangho Lee , Sangpyo Kim , Gina Sohn , John Kim , Minsoo Rhu , Jung Ho Ahn

In this paper, we propose the first homomorphic based proxy re-encryption (HPRE) solution that allows different users to share data they outsourced homomorphically encrypted using their respective public keys with the possibility to process…

密码学与安全 · 计算机科学 2017-06-07 Reda Bellafqira , Gouenou Coatrieux , Dalel Bouslimi , Gwénolé Quellec , Michel Cozic

Homomorphic Encryption (HE) allows secure and privacy-protected computation on encrypted data without the need to decrypt it. Since Shor's algorithm rendered prime factorisation and discrete logarithm-based ciphers insecure with quantum…

密码学与安全 · 计算机科学 2025-04-24 Siddhartha Siddhiprada Bhoi , Arathi Arakala , Amy Beth Corman , Asha Rao

An automatically differentiable, high-order non-oscillatory finite volume shallow water dynamic core has been constructed on a cubed sphere grid. This dynamic core has four advantageous properties: high order accuracy, essential…

流体动力学 · 物理学 2025-01-03 Lilong Zhou

Privacy computing involves the extensive exchange and processing of encrypted data. For the parties involved in these interactions, how to determine the consistency of exchanged data without accessing the original data, ensuring tamper…

密码学与安全 · 计算机科学 2024-10-24 Huang Neng

Performing smart computations in a context of cloud computing and big data is highly appreciated today. Fully homomorphic encryption (FHE) is a smart category of encryption schemes that allows working with the data in its encrypted form. It…

密码学与安全 · 计算机科学 2018-04-20 Ahmed El-Yahyaoui , Mohamed Dafir Ech-Chrif El Kettani

We propose an unbounded fully homomorphic encryption scheme, i.e. a scheme that allows one to compute on encrypted data for any desired functions without needing to decrypt the data or knowing the decryption keys. This is a rational…

密码学与安全 · 计算机科学 2023-01-31 Zhiyong Zheng , Fengxia Liu , Kun Tian