Simultaneous quantum identity authentication scheme utilizing entanglement swapping with secret key preservation

• URL: http://arxiv.org/abs/2405.14987v2
• Date: Wed, 12 Feb 2025 13:16:19 GMT
• Title: Simultaneous quantum identity authentication scheme utilizing entanglement swapping with secret key preservation
• Authors: Arindam Dutta, Anirban Pathak,
• Abstract summary: We introduce a new protocol for quantum identity authentication (QIA) Our proposed scheme facilitates simultaneous authentication between two users, Alice and Bob, leveraging Bell states with the assistance of a third party, Charlie. We demonstrate that the proposed protocol withstands various known attacks, including impersonation, intercept and resend and impersonated fraudulent attacks.
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• Abstract: Unconditional security in quantum key distribution (QKD) relies on authenticating the identities of users involved in key distribution. While classical identity authentication schemes were initially utilized in QKD implementations, concerns regarding their vulnerability have prompted the exploration of quantum identity authentication (QIA) protocols. In this study, we introduce a new protocol for QIA, derived from the concept of controlled secure direct quantum communication. Our proposed scheme facilitates simultaneous authentication between two users, Alice and Bob, leveraging Bell states with the assistance of a third party, Charlie. Through rigorous security analysis, we demonstrate that the proposed protocol withstands various known attacks, including impersonation, intercept and resend and impersonated fraudulent attacks. Additionally, we establish the relevance of the proposed protocol by comparing it with the existing protocols of similar type.

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