The Improved Bostrom–felbinger Protocol Against Attacks Without Eavesdropping

Zhang, Zhanjun; Man, Zhong‐Xiao; Li, Yong

doi:10.1142/s0219749904000912

Cited by 52 publications

(25 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, only the situation that the improved protocol is used as a QKD strategy is considered. So the weaknesses which the quantum direct communication protocol must be faced, such as the noise channel [39,40], the Dos attack [41,42] and so on, may not be considered. In the further work, the other QSDC protocol will be researched.…”

Section: Conclusion and Further Workmentioning

confidence: 99%

Improved eavesdropping detection strategy based on four-particle cluster state in quantum direct communication protocol

Jin

Jing

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

In order to improve the eavesdropping detection efficiency in a two-step quantum direct communication protocol, an improved eavesdropping detection strategy using the four-particle cluster state is proposed, in which the four-particle cluster state is used to detect eavesdroppers. During the security analysis, the method of the entropy theory is introduced, and two detection strategies are compared quantitatively using the constraint between the information that the eavesdropper can obtain and the interference that has been introduced. If the eavesdroppers intend to obtain all information, the eavesdropping detection rate of the original two-step quantum direct communication protocol using EPR pair block as detection particles will be 50%; while the proposed strategy's detection rate will be 75%. In the end, the security of the proposed protocol is discussed. The analysis results show that the eavesdropping detection strategy presented is more secure. The goal of researching cryptography is to ensure that the secret message is only available to the two authorized parties of the communication and that the transmission will be altered. So far, it is trusted that the only proven secure cryptosystem is the one-time-pad scheme in which the secret key is as long as the message. The two parties staying far apart who want to transmit their secret message must distribute the secret key first. However it is difficult to distribute the secret key securely through a classical channel. The quantum key distribution (QKD), whose task is to create a secret key between two remote authorized users, is one of the most remarkable applications of quantum mechanics and the only proven protocol for secure key distribution. Since Bennett and Brassard presented the pioneer QKD protocol (BB84 protocol) [1] in 1984, a lot of quantum information security processing methods have been advanced, such as quantum teleportation [2][3][4][5][6][7], quantum dense coding [8][9][10], quantum secret sharing [11,12] and so on.In recent years, a novel concept, quantum secure direct communication (QSDC) [13,14] was put forward and studied by some groups. Different from the key distribution whose object is to establish a common random key between two parties, the secure direct communication is to transmit important message directly without establishing a random key to encrypt them first. Thus, the secure direct communication is more demanding on the security. As a secure direct communication, it must satisfy two requirements. First, the secure message should be read out directly by the legitimate user Bob when he receives the quantum states and no additional classical information is needed after the transmission of particles. Second, the secret message which has been encoded already in the quantum states should not leak even though an eavesdropper may get hold of the channel. That is to say, the eavesdropper cannot only be detected but also obtains blind results. As classical message can be copied fully, it is impossible to transmit secret message direct...

show abstract

Section: Conclusion and Further Workmentioning

confidence: 99%

Improved eavesdropping detection strategy based on four-particle cluster state in quantum direct communication protocol

Jin

Jing

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…For example, it is possible to generalize the dense coding for continuous variables [16,17], multipartite communication [18][19][20][21][22][23]. The original controlled dense coding protocol was proposed in 2001 [24].…”

Section: Introductionmentioning

confidence: 99%

Dense Coding with Cluster State Via Local Measurements

2011

Int J Theor Phys

View full text Add to dashboard Cite

Two schemes, introducing generalized measurement and entanglement concentration respectively, for dense coding are investigated by using a one-dimensional fourparticle cluster state, where the supervisors (Cliff and David) can control the average amount of information transmitted from the sender (Alice) to the receiver (Bob) by adjusting the local measurement angles θ 3 and θ 4 . It is shown that the results for the average amounts of information are unique from the different two schemes.

show abstract

“…For example, it is possible to generalize the dense coding for continuous variables [15,16], multipartite communication [17][18][19][20][21][22]. One can perform dense coding not only with quantum states in finite dimensional Hilbert spaces but also with quantum states in infinite dimensional Hilbert spaces.…”

mentioning

confidence: 99%

Controlled Dense Coding using Generalized GHZ-type State

Wang

Huang

2009

Int J Theor Phys

View full text Add to dashboard Cite

Two schemes for controlled dense coding with a extended GHZ-type state are investigated. In this protocol, the supervisor (Cliff) can control the channel and the average amount of information transmitted from the sender (Alice) to the receiver (Bob) by adjusting the local measurement angle θ . It is shown that the results for the average amounts of information are unique from the different two schemes.

show abstract

The Improved Bostrom–felbinger Protocol Against Attacks Without Eavesdropping

Cited by 52 publications

References 28 publications

Improved eavesdropping detection strategy based on four-particle cluster state in quantum direct communication protocol

Improved eavesdropping detection strategy based on four-particle cluster state in quantum direct communication protocol

Dense Coding with Cluster State Via Local Measurements

Controlled Dense Coding using Generalized GHZ-type State

Contact Info

Product

Resources

About