Антиквантовый метод аутентификации личности через кросс-цепочку с использованием динамической групповой подписи

Huifang YU ,  

Mengjie HUANG ,  

Abstract

To solve the privacy leakage and identity island problems in cross-chain interaction, we propose an anti-quantum cross-chain identity authentication approach based on dynamic group signature (DGS-AQCCIDAA) for smart education. The relay-based cross-chain model promotes interconnection in heterogeneous consortium blockchains. DGS is used as the endorsement strategy for cross-chain identity authentication. Our approach can ensure quantum security under the learning with error (LWE) and inhomogeneous small integer solution (ISIS) assumptions, and it uses non-interactive zero-knowledge proof (NIZKP) to protect user identity privacy. Our scheme has low calculation overhead and provides anonymous cross-chain identity authentication in the smart education system.

Keywords

Аутентификация личности; Динамическая групповая подпись (DGS); Антиквантовая защита; Доказательство нулевого знания

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