We show that quantum entanglement is helpful in improving the security of arbitrated quantum signature (AQS). Using the properties of quantum entanglement, a potential forgery which might occur in arbitrated quantum signature schemes without using them can be avoided. The fact is illustrated by relevant schemes. Copyright © 2009 World Scientific Publishing Company.
CitationLi, Q., Du, R.-G., Long, D.-Y., Wang, C.-J., & Chan, W.-H. (2009). Entanglement enhances the security of arbitrated quantum signature. International Journal of Quantum Information, 7(5), 913-925. doi: 10.1142/S0219749909005675
- Quantum signature
- Quantum entanglement
- Quantum cryptography