Cryptology ePrint Archive: Report 2019/1496

Improved on Identity-based quantum signature based on Bell states

Chang-Bin Wang and Shu-Mei Hsu and Hsiang Chang and Jue-Sam Chou

Abstract: In 2020 Xin et al.proposed a new identity-based quantum signature based on Bell states scheme. By using a one-time padding (OTP) for both-side transfer operations like, "XOR", Hadamard H, and Y, they confirmed the security of the proposed scheme. However, after analyses, we found that the scheme cannot resist both the existing forgery attack and meaningful message attack. Therefore, we modified their scheme to include the required security, unforgeability, which is very important in quantum signature scheme.

Category / Keywords: cryptographic protocols / quantum signature, Identity-based signature, Hadamard gate, unforgeability, quantum state

Date: received 30 Dec 2019

Contact author: jschou at nhu edu tw

Available format(s): PDF | BibTeX Citation

Version: 20191230:194152 (All versions of this report)

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