Post-quantum secure group signature with verifier local revocation and backward unlinkability

Article Computer Science, Information Systems

Verifier-local revocation group signatures with backward unlinkability from lattices

Yanhua Zhang et al.

Summary: In this study, the first lattice-based verifier-local revocation group signature (VLR-GS) scheme with backward unlinkability (BU) is introduced, addressing an open problem in previous works. The new scheme achieves a saving factor for bit-sizes and does not require public-key encryption.

FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING (2022)

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Article Computer Science, Information Systems

A fully dynamic forward-secure group signature from lattice

Zhijian Liao et al.

Summary: In this paper, we propose an efficient lattice-based fully dynamic forward-secure group signature scheme, which combines an improved FSGS scheme and zero-knowledge proof, achieving unforgeability of signatures and privacy protection.

CYBERSECURITY (2022)

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Article Computer Science, Hardware & Architecture

CCA-Almost-Full Anonymous Group Signature with Verifier Local Revocation in the Standard Model

Sha Ma et al.

Summary: Researchers proposed an efficient group signature scheme with verifier local revocation, utilizing a new primitive plaintext searchable encryption. The scheme ensures that signatures generated by users before revocation remain anonymous even after revocation.

COMPUTER JOURNAL (2021)

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Article Engineering, Electrical & Electronic

Group signature with time-bound keys and unforgeability of expiry time for smart cities

Junli Fang et al.

Summary: The proposed dynamic time-bound group signature addresses the issues of identity privacy and supervision in IoT device management, and is feasible in a resource-constrained setting with efficient computational cost.

EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING (2021)

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Article Computer Science, Theory & Methods

Almost fully anonymous attribute-based group signatures with verifier-local revocation and member registration from lattice assumptions

Maharage Nisansala Sevwandi Perera et al.

Summary: The paper introduces a new Attribute-Based Group Signature (ABGS) scheme constructed from lattices to achieve stronger security and almost full anonymity, along with a simple member joining protocol and zero-knowledge argument system. The scheme is proven to meet the security requirements of almost full anonymity, traceability, and non-frameability.

THEORETICAL COMPUTER SCIENCE (2021)

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Article Computer Science, Hardware & Architecture