ECQV-IBI: Identity-based identification with implicit certification


Braeken, An and Chin, Ji Jian and Tan, Syh Yuan (2021) ECQV-IBI: Identity-based identification with implicit certification. Journal of Information Security and Applications, 63. p. 103027. ISSN 2214-2126

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Identity-based identification (IBI) schemes allow a prover to provide entity identification, based on its unique identity. This paper provides the first non-trivial IBI scheme with implicit certification by using the Elliptic Curve Qu Vanstone (ECQV) implicit certification scheme. In contrast to the conventional identity-based schemes, the implicit certificate based approach is resistant against key escrow since the trusted authority only a part of the secret key, which is used as input by the user to construct its own user secret key. We show our scheme is able to achieve Trust Level 3 according to Girault’s definitions, while requiring less resources when compared to certificateless identification. A corresponding formal security model is defined, showing the resistance of our proposed scheme against impersonation attacks. Compared to other Schnorr-based IBI schemes, our proposed IBI scheme with implicit certification outperforms in storage, computation and communication efficiency and thus offers a viable solution to be applied in an internet of things (IoT) context.

Item Type: Article
Uncontrolled Keywords: Elliptic functions, Identity-based identification, Key escrow
Subjects: Q Science > QA Mathematics > QA299.6-433 Analysis
Divisions: Faculty of Computing and Informatics (FCI)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 26 Nov 2021 12:37
Last Modified: 26 Nov 2021 12:37


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