1. Enhanced arbitrated quantum signature scheme using Bell states.
- Author
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Chao Wang, Jian-Wei Liu, and Tao Shang
- Subjects
- *
QUANTUM cryptography , *QUANTUM information science , *DIGITAL signatures , *BELL'S theorem , *DENIAL of service attacks , *DATA encryption , *COMPUTER security - Abstract
We investigate the existing arbitrated quantum signature schemes as well as their cryptanalysis, including intercept-resend attack and denial-of-service attack. By exploring the loopholes of these schemes, a malicious signatory may successfully disavow signed messages, or the receiver may actively negate the signature from the signatory without being detected. By modifying the existing schemes, we develop counter-measures to these attacks using Bell states. The newly proposed scheme puts forward the security of arbitrated quantum signature. Furthermore, several valuable topics are also presented for further research of the quantum signature scheme. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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