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A New Identity-Based Encryption Scheme with Accountable Authority Based on SM9
[chapter]
2021
Frontiers in Artificial Intelligence and Applications
Preserved Fulltext
Accountable authority identity-based encryption (A-IBE) is an extension of identity-based encryption (IBE) in which private key's source can be traced, i.e., whether the key comes from a private key generator or a user. SM9 is an official cryptography standard of China which defines a practical IBE scheme. In this paper, we construct a practical A-IBE scheme from the SM9-IBE scheme. Our A-IBE scheme has public traceability and is proven secure if the based SM9-IBE scheme is secure. Compared
doi:10.3233/faia210432
fatcat:dved5bikyvbkvmxsz7qssb3uka