Results 91 to 100 of about 678,464 (182)

RLWE-based ciphertext-policy attribute proxy re-encryption

Tongxin xuebao, 2018
To solve LWE-based proxy re-encryption schemes cannot achieve fine-grained access and low efficiency problem,a ciphertext-policy attribute-based proxy re-encryption scheme was proposed.The scheme based on linear secret sharing scheme,RLWE and attribute ...
En ZHANG, Yaoyao PEI, Jiao DU
doaj   +2 more sources

Dynamic Multi-Key Block Binary Ring-Compact Bootstrapping

Mathematics
Multi-Key Fully Homomorphic Encryption (MK-FHE) is essential for secure multi-party computation but currently faces significant scalability bottlenecks due to linear computational growth and low bootstrapping throughput.
Qiwei Xiao, Ruwei Huang
doaj   +1 more source

Quantum Security of a Compact Multi-Signature

Cryptography
With the rapid advances in quantum computing, quantum security is now an indispensable property for any cryptographic system. In this paper, we study how to prove the security of a complex cryptographic system in the quantum random oracle model. We first
Shaoquan Jiang
doaj   +1 more source

Provably secure private-keyless encryption on ideal lattices

工程科学学报
Private-keyless encryption (PKLE) addresses the cumbersome challenge of private key management by replacing traditional user private keys with one-time decryption credentials.
Hai LU, Shutong MENG, Yan ZHU, Yong LI
doaj   +1 more source

A Central Limit Approach for Ring-LWE Noise Analysis

IACR Communications in Cryptology
This paper develops Central Limit arguments for analysing the noise in ciphertexts in two homomorphic encryption schemes that are based on Ring-LWE. The first main contribution of this paper is to present and evaluate an average-case noise analysis for the BGV scheme.
Sean Murphy, Rachel Player
openaire   +2 more sources

A quantum-resilient lattice-based security framework for internet of medical things in healthcare systems

Journal of King Saud University: Computer and Information Sciences
The rapid adoption of Internet of Medical Things (IoMT) devices enables real-time patient monitoring and remote diagnostics and has revolutionized healthcare delivery.
Zeyad Ghaleb Al-Mekhlaf, Murtaja Ali Saare, Jalal Mohammed Hachim Altmemi, Mahmood A. Al-Shareeda, Badiea Abdulkarem Mohammed, Gharbi Alshammari, Reem alrashdi, Yasser A. Alkhabra, Ibrahim Alreshidi   +8 more
doaj   +1 more source

Compact Ring-LWE based Cryptoprocessor

, 2014
In this paper we propose an efficient and compact processor for a ring-LWE based encryption scheme. We present three optimizations for the Number Theoretic Transform (NTT) used for polynomial multiplication: we avoid pre-processing in the negative ...
Nele Mentens, Donald Donglong Chen, Sujoy Sinha Roy, Frederik Vercauteren, Ingrid Verbauwhede   +4 more
core   +1 more source

A Lightweight Double-Ring Hybrid Sparse NTRU (DRH-SNTRU) Scheme for Secure and Real-Time Communication in the Internet of Vehicles (IoV)

Computers
The Internet of Vehicles (IoV) is rapidly emerging as a core component of intelligent transportation systems, enabling real-time communication among vehicles, infrastructure, and cloud platforms.
Weiqi Wang, Gwo-Chin Ching, Soo Fun Tan
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

Security Analysis and Designing Advanced Two-Party Lattice-Based Authenticated Key Establishment and Key Transport Protocols for Mobile Communication

Future Internet
In this paper, we have proposed a two-party authenticated key establishment (AKE), and authenticated key transport protocols based on lattice-based cryptography, aiming to provide security against quantum attacks for secure communication.
Mani Rajendran, Dharminder Chaudhary, S. A. Lakshmanan, Cheng-Chi Lee   +3 more
doaj   +1 more source