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Dizar: An Architecture of Distributed Public Key Infrastructure Based on Permissoned Blockchain

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Blockchain Technology and Application (CBCC 2019)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1176))

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Abstract

With the current blockchain-based Public Key Infrastructure (PKI) being in its early stage of R&D, it is suffering from many shortcomings, such as its reliance on the centralized Certificate Authority (CA), the faulty identity registration and verification mechanism, and the difficulty in certificate management. As a result, the existing blockchain based PKI has trouble in adapting to a distributed network. Therefore, we have proposed Dizar: A distributed PKI architecture based on permissoned blockchain. Dizar architecture is designed with a distributed ledger operation system that can verify security. Based on no certificate authentication, electronic certificates with legal identities in the network are registered in a secure and verifiable permissioned blockchain, thus realizing the full-cycle management of the issued electronic certificates. The performance of Dizar is analyzed and compared with previous protocols. The results show that the Dizar architecture has better adaptability to a distributed network.

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Correspondence to Qianyi Dai .

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Dai, Q., Xu, K., Dai, L., Guo, S. (2020). Dizar: An Architecture of Distributed Public Key Infrastructure Based on Permissoned Blockchain. In: Si, X., et al. Blockchain Technology and Application. CBCC 2019. Communications in Computer and Information Science, vol 1176. Springer, Singapore. https://doi.org/10.1007/978-981-15-3278-8_11

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  • DOI: https://doi.org/10.1007/978-981-15-3278-8_11

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-3277-1

  • Online ISBN: 978-981-15-3278-8

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