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- research-articleAugust 2024
TRA-PS: Accountable data Pub/Sub service with fast and fine-grained controllable subscription
Journal of Systems Architecture: the EUROMICRO Journal (JOSA), Volume 153, Issue CAug 2024https://doi.org/10.1016/j.sysarc.2024.103197AbstractThe Cloud-based data publish/subscribe (Pub/Sub) service presents a selective manner for publishers and subscribers to share and receive data, where confidentiality and authorized access to the data are the fundamental security properties. ...
- research-articleJuly 2024
Blockchain-based efficient verifiable outsourced attribute-based encryption in cloud
Computer Standards & Interfaces (CSAI), Volume 90, Issue CAug 2024https://doi.org/10.1016/j.csi.2024.103854AbstractAttribute-based encryption (ABE) has been widely applied in cloud services for access control. However, a large number of pairing operations required for decryption affect the wide use of ABE on lightweight devices. A general solution is to ...
Highlights- The computational overhead of transformation-key for data users is reduced from O(N) to O(1).
- The computational overhead of verification-key generation for data users is reduced by half.
- Implement batch verification using ...
- research-articleAugust 2024
Designated server proxy re-encryption with boolean keyword search for E-Health Clouds
Journal of Information Security and Applications (JISA), Volume 83, Issue CJun 2024https://doi.org/10.1016/j.jisa.2024.103783AbstractE-Health Cloud can provide remote, accurate, real-time, intelligent information services for healthcare. Despite the benefits brought by data outsourcing, it may also cause data breaches and compromise user privacy. Searchable encryption can ...
- research-articleJune 2024
Fully anonymous identity-based broadcast signcryption with public verification
Theoretical Computer Science (TCSC), Volume 992, Issue CApr 2024https://doi.org/10.1016/j.tcs.2024.114464AbstractIn the multicast communication scenario, compared with broadcast encryption, broadcast signcryption or multi-receiver signcryption has additional ability to authenticate the source of the message. With the enhanced awareness of privacy ...
- research-articleJune 2024
Provably secure multi-signature scheme based on the standard SM2 signature scheme
Computer Standards & Interfaces (CSAI), Volume 89, Issue CApr 2024https://doi.org/10.1016/j.csi.2023.103819AbstractThe multi-signature scheme plays a crucial role in addressing trust and authentication challenges in digital transactions and other scenarios by allowing multiple users to sign the same message. Among various signature schemes, the SM2 signature ...
Highlights- The first provably secure multi-signature scheme based on the standard SM2 signature.
- Achieving EUF-CMA in the bijective random oracle model under the ECDLP assumption.
- Low communication delay and computational cost.
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- research-articleMarch 2024
Updatable searchable symmetric encryption: Definitions and constructions
Theoretical Computer Science (TCSC), Volume 983, Issue CFeb 2024https://doi.org/10.1016/j.tcs.2023.114304AbstractSearchable symmetric encryption (SSE) allows a client to search over encrypted data. To address the real threat of key compromise in practice, this work initiates the study of key rotation for SSE and introduces the notion of updatable SSE (USSE)...
- ArticleDecember 2023
Improved Fully Adaptive Decentralized MA-ABE for NC1 from MDDH
Advances in Cryptology – ASIACRYPT 2023Dec 2023, Pages 3–32https://doi.org/10.1007/978-981-99-8733-7_1AbstractWe improve the first and the only existing prime-order fully adaptively secure decentralized Multi-Authority Attribute-Based Encryption (MA-ABE) scheme for NC1 in Datta-Komargodski-Waters [Eurocrypt ’23]. Compared with Datta-Komargodski-Waters, ...
- surveyNovember 2023
A Survey on Searchable Symmetric Encryption
ACM Computing Surveys (CSUR), Volume 56, Issue 5Article No.: 119, Pages 1–42https://doi.org/10.1145/3617991Outsourcing data to the cloud has become prevalent, so Searchable Symmetric Encryption (SSE), one of the methods for protecting outsourced data, has arisen widespread interest. Moreover, many novel technologies and theories have emerged, especially for ...
- research-articleSeptember 2023
Differentially Oblivious Two-Party Pattern Matching With Sublinear Round Complexity
IEEE Transactions on Dependable and Secure Computing (TDSC), Volume 20, Issue 5Sept.-Oct. 2023, Pages 4101–4117https://doi.org/10.1109/TDSC.2022.3206758Privacy-preserving pattern matching enables a user to find all occurrences of a pattern in a text without revealing any sensitive information. However, many previous works designed on homomorphic encryption suffer from expensive computational overhead and ...
- research-articleAugust 2023
Deep-Reuse-Enabled Common Satellite Network via Collaborative Blockchains: Architecture, Challenges, and Solutions
IEEE Communications Magazine (COMAG), Volume 61, Issue 8August 2023, Pages 130–136https://doi.org/10.1109/MCOM.006.2200835Satellite networks, as a recent deployment for technical and economic progress, have shown great advantages to provide diversiform Internet services. However, the networks are grappling with severe congestion caused by a surge in simultaneous requests, ...
- research-articleApril 2023
BASRAC: An efficient batch authentication scheme with rule-based access control for VANETs
Vehicular Communications (VEHCO), Volume 40, Issue CApr 2023https://doi.org/10.1016/j.vehcom.2023.100575AbstractSecurity and privacy protection are important requirements of vehicular ad hoc networks (VANETs). In recent years, many authentication schemes have been proposed to solve the security and privacy issues in VANETs. However, almost all ...
- research-articleJanuary 2023
Efficient Construction of Verifiable Timed Signatures and Its Application in Scalable Payments
IEEE Transactions on Information Forensics and Security (TIFS), Volume 182023, Pages 5345–5358https://doi.org/10.1109/TIFS.2023.3306107Despite the myriad benefits offered by blockchain technology, most of them still face several interrelated issues, such as limited transaction throughput, exorbitant transaction fees, and protracted confirmation times. Payment channel networks have ...
- research-articleJanuary 2023
An Adaptively Secure and Efficient Data Sharing System for Dynamic User Groups in Cloud
IEEE Transactions on Information Forensics and Security (TIFS), Volume 182023, Pages 5171–5185https://doi.org/10.1109/TIFS.2023.3305870Cloud computing has been widely accepted as a computing paradigm to offer high-quality data services on demand. However, it suffers from various attacks as the cloud service provider and data owners are not in the same trusted domain. To support data ...
- research-articleJanuary 2023
Secure Cloud-Assisted Data Pub/Sub Service With Fine-Grained Bilateral Access Control
IEEE Transactions on Information Forensics and Security (TIFS), Volume 182023, Pages 5286–5301https://doi.org/10.1109/TIFS.2023.3303720Secure cloud-assisted data publish/subscribe (Pub/Sub) service provides an asynchronous method for publishers and subscribers to non-interactively exchange encrypted messages. Besides performing conjunctive subscription policy, numerous data Pub/Sub ...
- research-articleDecember 2022
Multi-Client Boolean File Retrieval With Adaptable Authorization Switching for Secure Cloud Search Services
IEEE Transactions on Dependable and Secure Computing (TDSC), Volume 20, Issue 6Nov.-Dec. 2023, Pages 4621–4636https://doi.org/10.1109/TDSC.2022.3227650Secure cloud search services provide a cost-effective way for resource-constrained clients to search encrypted files in the cloud, where data owners can customize search authorization. Despite providing fine-grained authorization, traditional attribute-...
- research-articleDecember 2022
ACA: Anonymous, Confidential and Auditable Transaction Systems for Blockchain
IEEE Transactions on Dependable and Secure Computing (TDSC), Volume 20, Issue 6Nov.-Dec. 2023, Pages 4536–4550https://doi.org/10.1109/TDSC.2022.3228236The rapid development and wide application of blockchain not only highlight the significance of privacy protection (including anonymity and confidentiality) but also the necessity of auditability. While several ingenious schemes such as MiniLedger and ...
- ArticleNovember 2022
M-EDESE: Multi-Domain, Easily Deployable, and Efficiently Searchable Encryption
Information Security Practice and ExperienceNov 2022, Pages 606–623https://doi.org/10.1007/978-3-031-21280-2_34AbstractSearchable encryption is an essential component of cryptography, which allows users to search for keywords and retrieve records from an encrypted database at cloud storage while ensuring the confidentiality of users’ queries. While most existing ...
- ArticleOctober 2022
A Collaborative Access Control Scheme Based on Incentive Mechanisms
AbstractAiming at the problems of the existing attribute-based collaborative decryption schemes exemplified by failures in cloud storage servers and poor enthusiasm of users for collaborative decryption, a collaborative access control scheme based on ...
- ArticleSeptember 2022
VAL: Volume and Access Pattern Leakage-Abuse Attack with Leaked Documents
AbstractSearchable Encryption schemes provide secure search over encrypted databases while allowing admitted information leakages. Generally, the leakages can be categorized into access and volume pattern. In most existing SE schemes, these leakages are ...
- research-articleSeptember 2022
Offline/Online lattice-based ciphertext policy attribute-based encryption
Journal of Systems Architecture: the EUROMICRO Journal (JOSA), Volume 130, Issue CSep 2022https://doi.org/10.1016/j.sysarc.2022.102684AbstractAttribute Based Encryption (ABE) is a new public key encryption scheme which allows users to encrypt and decrypt messages based on user attributes, and it can enforce fine grained access control over the encrypted data. However, ...