Abstract
Recently, Chen et al. presented a novel quantum private comparison (QPC) protocol using triplet GHZ state to enable two parties to compare the equality of their information without revealing the content. The protocol is rather promising because it only requires single-photon measurement with the help of a semi-honest third party to complete the secret comparison. However, this study will point out that a weakness could occur in the eavesdropping check phase. That is, an intercept-resend attack could be launched by one of the two participants to reveal the information content of the other participant-a result that contradicts to the security requirement of a QPC. Fortunately, two solutions are possible to avoid the attack.
| Original language | English |
|---|---|
| Pages (from-to) | 2412-2414 |
| Number of pages | 3 |
| Journal | Optics Communications |
| Volume | 284 |
| Issue number | 9 |
| DOIs |
|
| Publication status | Published - 2011 May 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
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Intercept-resend attacks on Chen et al.'s quantum private comparison protocol and the improvements. / Lin, Jason; Tseng, Hsin Yi; Hwang, Tzone-Lih.
In: Optics Communications, Vol. 284, No. 9, 01.05.2011, p. 2412-2414.Research output: Contribution to journal › Comment/debate
TY - JOUR
T1 - Intercept-resend attacks on Chen et al.'s quantum private comparison protocol and the improvements
AU - Lin, Jason
AU - Tseng, Hsin Yi
AU - Hwang, Tzone-Lih
PY - 2011/5/1
Y1 - 2011/5/1
N2 - Recently, Chen et al. presented a novel quantum private comparison (QPC) protocol using triplet GHZ state to enable two parties to compare the equality of their information without revealing the content. The protocol is rather promising because it only requires single-photon measurement with the help of a semi-honest third party to complete the secret comparison. However, this study will point out that a weakness could occur in the eavesdropping check phase. That is, an intercept-resend attack could be launched by one of the two participants to reveal the information content of the other participant-a result that contradicts to the security requirement of a QPC. Fortunately, two solutions are possible to avoid the attack.
AB - Recently, Chen et al. presented a novel quantum private comparison (QPC) protocol using triplet GHZ state to enable two parties to compare the equality of their information without revealing the content. The protocol is rather promising because it only requires single-photon measurement with the help of a semi-honest third party to complete the secret comparison. However, this study will point out that a weakness could occur in the eavesdropping check phase. That is, an intercept-resend attack could be launched by one of the two participants to reveal the information content of the other participant-a result that contradicts to the security requirement of a QPC. Fortunately, two solutions are possible to avoid the attack.
UR - http://www.scopus.com/inward/record.url?scp=79951933173&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951933173&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2010.12.070
DO - 10.1016/j.optcom.2010.12.070
M3 - Comment/debate
AN - SCOPUS:79951933173
VL - 284
SP - 2412
EP - 2414
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
IS - 9
ER -