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- Title
DISCUSSION ON QUANTUM PROXY GROUP SIGNATURE SCHEME WITH χ-TYPE ENTANGLED STATE.
- Authors
HUI-JUAN ZUO; SU-JUAN QIN; TING-TING SONG
- Abstract
Recently, Yin et al. (Int. J. Quantum Inform. 10 (2012) 1250041) proposed a quantum proxy group signature scheme with χ-type entangled states. The scheme combines the properties of group signature and proxy signature. The study points out that the semi-honest Trent can give the forged signature under the assumption of this scheme. And, we find that even if the three parties honestly perform the scheme, the signature still cannot be realized with high efficiency.
- Subjects
QUANTUM entanglement; QUANTUM efficiency; QUANTUM theory; CRYPTOGRAPHY; QUANTUM information theory; QUANTUM optical phenomena; SIGNS &; symbols
- Publication
International Journal of Quantum Information, 2013, Vol 11, Issue 3, p1
- ISSN
0219-7499
- Publication type
Article
- DOI
10.1142/S0219749913500305