Results 71 to 80 of about 3,238 (175)

Attribute-based publicly verifiable secret sharing

Cybersecurity
Can a dealer share a secret without knowing the shareholders? We provide a positive answer to this question by introducing the concept of an attribute-based secret sharing (AB-SS) scheme.With AB-SS, a dealer can distribute a secret based on attributes ...
Liang Zhang, Xingyu Wu, Qiuling Yue, Haibin Kan, Jiheng Zhang   +4 more
doaj   +1 more source

SI-CP-ABE: an isogeny-based ciphertext-policy attribute-based encryption scheme

网络与信息安全学报
Ciphertext-policy attribute-based encryption (CP-ABE) serves as a fundamental cryptographic primitive for fine-grained data access control. However, existing schemes, primarily based on bilinear maps or lattice hardness assumptions, generally suffer from
Chen Xiwen, Chen Jinrong, Xu Zheng, Zhou Zijian   +3 more
doaj  

Distributed Cryptography for Lightweight Encryption in Decentralized CP-ABE

2023 19th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2023
Mohammed B. Alshawki, Janneke Van Oosterhout, Péter Ligeti, Christoph Reich   +3 more
openaire   +2 more sources

Blockchain-Enabled Privacy-Preserving Access Control for EHRs Sharing With Optimized User and Attribute Revocation

IET Information Security
Electronic health records (EHRs) have become a crucial application in cloud computing environments, necessitating advanced privacy-preserving access control mechanisms. Ciphertext policy attribute-based encryption (CP-ABE) is a widely recognized solution
Khanadech Worapaluk, Somchart Fugkeaw
doaj   +1 more source

A Study on CP-ABE-based Medical Data Sharing System with Key Abuse Prevention and Verifiable Outsourcing in the IoMT Environment. [PDF]

Sensors (Basel), 2020
Hwang YW, Lee IY.
europepmc   +1 more source

Comparing Lattices and Bilinear Parings in CP-ABE

De Cifris Koine
Ciphertext-Policy Attribute-Based Encryption enables fine-grained access control by binding ciphertext decryption to user attributes. While most practical schemes are pairing-based and rely on assumptions vulnera- ble to quantum attacks, lattice-based approaches offer post-quantum secu- rity at the cost of reduced expressiveness.
Gasparini, Lorenzo, Onofri, Elia, Palmucci, Martina, Pedicini, Marco   +3 more
openaire   +2 more sources

BeyondLife: An Open-Source Digital Will Solution for Posthumous Data Management

IEEE Access
Managing posthumous data is becoming an increasingly complex challenge, with many existing technical solutions proving impractical in real-world applications.
Xinzhang Chen, Arash Shaghaghi, Jesse Laeuchli, Salil S. Kanhere   +3 more
doaj   +1 more source

Lattice-Based CP-ABE Access Control for SDS Constraint with Lazy Assignment of Attributes and Attribute Revocation

IET Information Security
Ciphertext-policy attribute-based encryption (CP-ABE) is a cryptographic scheme suitable for secure data sharing on cloud storage. The CP-ABE based on lattice theory has the property of resisting quantum attack. Some data objects uploaded to the cloud by
Ting Guo, Abdugeni Abduxkur, Nurmamat Helil   +2 more
doaj   +1 more source

Key public verifiable MA-CP-ABE scheme based on aggregatable PVSS and consortium blockchain

Tongxin xuebao
To address challenges associated with threshold-based multi-authority ciphertext-policy attribute-based encryption (MA-CP-ABE), such as untrusted attribute authorities (AA) and the inability to verify the correctness of attribute private keys publicly, a
JING Xu, JIANG Yan
doaj   +2 more sources

A practical application of CP-ABE for mobile PHR system: a study on the user accountability. [PDF]

Springerplus, 2016
Hong H, Chen D, Sun Z.
europepmc   +1 more source