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Verifying user attributes to provide fine-grained access control to databases is fundamental to an attribute-based authentication system. In such systems, either a single (central) authority verifies all attributes, or multiple independent…

Information Theory · Computer Science 2024-01-25 Shreya Meel , Sennur Ulukus

Quantum computers create new security risks for today's encryption systems. This paper presents an improved version of the Advanced Encryption Standard (AES) that uses quantum technology to strengthen protection. Our approach offers two…

Quantum Physics · Physics 2025-10-02 Albert Nieto-Morales , Arit Kumar Bishwas , Joel Jacob Varghese

Attribution algorithms are essential for enhancing the interpretability and trustworthiness of deep learning models by identifying key features driving model decisions. Existing frameworks, such as InterpretDL and OmniXAI, integrate…

Machine Learning · Computer Science 2025-05-13 Zhiyu Zhu , Jiayu Zhang , Zhibo Jin , Fang Chen , Jianlong Zhou

In Identity-Based Encryption (IBE) systems, key revocation is non-trivial. This is because a user's identity is itself a public key. Moreover, the private key corresponding to the identity needs to be obtained from a trusted key authority…

Cryptography and Security · Computer Science 2012-10-25 Jie Chen , Hoon Wei Lim , San Ling , Le Su , Huaxiong Wang

Digital healthcare systems are very popular lately, as they provide a variety of helpful means to monitor people's health state as well as to protect people against an unexpected health situation. These systems contain a huge amount of…

Cryptography and Security · Computer Science 2019-08-28 Ngoc Hong Tran , Thien-An Nguyen-Ngoc , Nhien-An Le-Khac , M-Tahar Kechadi

With the rapid advances in computing and information technologies, traditional access control models have become inadequate in terms of capturing fine-grained, and expressive security requirements of newly emerging applications. An…

Cryptography and Security · Computer Science 2021-02-02 Leila Karimi , Maryam Aldairi , James Joshi , Mai Abdelhakim

Distributed Hash Tables (DHT) are a common architecture for decentralized applications and, therefore, would be suited for privacy-aware applications. However, currently existing DHTs allow every peer to access any index. To build…

Cryptography and Security · Computer Science 2017-09-19 Olga Kieselmann , Arno Wacker

Electronic Health Records (EHR) are data generated during routine clinical care. EHR offer researchers unprecedented phenotypic breadth and depth and have the potential to accelerate the pace of precision medicine at scale. A main EHR…

Quantitative Methods · Quantitative Biology 2017-04-28 Vaclav Papez , Spiros Denaxas , Harry Hemingway

Electronic Health Records(EHR) are gaining a lot of popularity all over the world. The current EHR systems however have their fair share of problems related to privacy and security. We have proposed a mechanism which provides a solution to…

Cryptography and Security · Computer Science 2020-10-01 Gaganjeet Reen , Manasi Mohandas , S Venkatesan

We revisit the problem of entity authentication in decentralized end-to-end encrypted email and secure messaging to propose a practical and self-sustaining cryptographic solution based on password-authenticated key exchange (PAKE). This not…

Cryptography and Security · Computer Science 2020-05-22 Itzel Vazquez Sandoval , Arash Atashpendar , Gabriele Lenzini

The widespread adoption of cloud infrastructures has revolutionised data storage and access. However, it has also raised concerns regarding the privacy of sensitive data stored in the cloud. To address these concerns, encryption techniques…

Cryptography and Security · Computer Science 2024-07-12 Ivone Amorim , Ivan Costa

The global Electronic Health Record (EHR) market is growing dramatically and expected to reach $39.7 billions by 2022. To safe-guard security and privacy of EHR, access control is an essential mechanism for managing EHR data. This paper…

Cryptography and Security · Computer Science 2019-06-05 Hao Guo , Wanxin Li , Mark Nejad , Chien-Chung Shen

Data privacy refers to ensuring that users keep control over access to information, whereas data accessibility refers to ensuring that information access is unconstrained. Conflicts between privacy and accessibility of data are natural to…

Electronic health records (EHRs) contain patients' heterogeneous data that are collected from medical providers involved in the patient's care, including medical notes, clinical events, laboratory test results, symptoms, and diagnoses. In…

Artificial Intelligence · Computer Science 2024-11-12 Shuai Niu , Yunya Song , Qing Yin , Yike Guo , Xian Yang

Electronic medical record (EMR) is a crucial form of healthcare data, currently drawing a lot of attention. Sharing health data is considered to be a critical approach to improve the quality of healthcare service and reduce medical costs.…

Cryptography and Security · Computer Science 2018-11-09 Jingwei Liu , Xiaolu Li , Lin Ye , Hongli Zhang , Xiaojiang Du , Mohsen Guizani

Electronic health records (EHR) are widely believed to hold a profusion of actionable insights, encrypted in an irregular, semi-structured format, amidst a loud noise background. To simplify learning patterns of health and disease, medical…

Computation and Language · Computer Science 2022-12-13 David A. Bloore , Romane Gauriau , Anna L. Decker , Jacob Oppenheim

Health records data security is one of the main challenges in e-health systems. Authentication is one of the essential security services to support the stored data confidentiality, integrity, and availability. This research focuses on the…

Cryptography and Security · Computer Science 2021-07-15 Ravi Teja Batchu , Abeer Alsadoon , P. W. C. Prasad , Rasha S. Ali , Tarik A. Rashid , Ghossoon Alsadoon , Oday D. Jerew

This paper studies information-theoretically secure quantum homomorphic encryption (QHE) schemes of classical data. Previous works on information-theoretically secure QHE schemes (like Childs'05, Liang'13, and others) are typically based on…

Quantum Physics · Physics 2023-02-14 Dor Bitan , Shlomi Dolev

Biometric identity-based encryption (Bio-IBE) is a kind of fuzzy identity-based encryption (fuzzy IBE) where a ciphertext encrypted under an identity w' can be decrypted using a secret key corresponding to the identity w which is close to…

Cryptography and Security · Computer Science 2012-03-20 Miaomiao Tian , Wei Yang , Liusheng Huang

De-identification of electronic health records (EHR) is a vital step towards advancing health informatics research and maximising the use of available data. It is a two-step process where step one is the identification of protected health…

Computers and Society · Computer Science 2020-02-18 Vithya Yogarajan , Bernhard Pfahringer , Michael Mayo
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