Titlebook: Data Security and Privacy Protection; Second International Xiaofeng Chen,Xinyi Huang,Moti Yung Conference proceedings 2025 The Editor(s) (i

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General Introduction to Drebriny ISO in 2021. But the initial SM9 identification cryptographic algorithm has only a single private key generator (PKG), and the user private key generation and transportation are completed by the PKG. It is not suitable for large-scale networks because the overburdened PKG can affect system securit