Quantum deterministic key distribution protocols based on the authenticated entanglement channel

A novel quantum MIMO communication scheme is proposed by generalizing the wireless communication technique to the quantum field. The MIMO quantum teleportation can be implemented with triplet states in order to enhance the capacity and fidelity of the quantum channel, in which an n-qubit sequence of quantum signals can be transmitted through the MIMO quantum channel by applying the diversity technique. The quantum noise filtering is involved before the quantum signals are outputted. The analysis and discussions demonstrate that the quantum MIMO teleportation can be performed securely with high capacity and fidelity.

Section: Channel Capacitymentioning

confidence: 99%

Quantum MIMO Communication Scheme Based on Quantum Teleportation with Triplet States

Shi

Guo

et al. 2011

“…QKD has progressed quickly since the QKD protocol was first proposed by Bennett and Brassard in 1984 [1]. On the other hand, a novel concept, Quantum Secure Direct communication (QSDC) has been proposed and pursued attracted much attention [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Different from QKD whose goal is to generate a private key between two remote parties, the QSDC communicates the secret messages directly without generating a key in advance and then encrypting the secret messages.…”

Section: Introductionmentioning

confidence: 99%

“…Recent research on quantum computation and quantum information allowed to use it for real world scenarios [17][18][19][20][21][22][23][24][25][26]. Corresponding to quantum information, quantum data hiding including quantum watermarking and quantum steganography can be employed to achieve covert communication of quantum or classical messages.…”

Section: Introductionmentioning

confidence: 99%

Quantum Watermarking Using Entanglement Swapping

Fatahi

Naseri

2012

Digital watermarking is the process of embedding information into a digital signal in a way that is difficult to remove. In this article a secure quantum watermarking using entanglement swapping is proposed. Here the entanglement swapping is employed to build up a hidden layer of secure message under the conventional first layer of secure information sequence. In this protocol by insuring the security of transmission of the first layer of information sequence the security of the hidden secret messages is also proved to be reliable regardless of whether the hidden channel has been detected or not.

“…Quantum computers are also devices that information is processed in a way that preserves quantum coherence [2]. Thus more and more cryptographic schemes and communication protocols [3,4] are also designed with quantum computation and quantum information processing techniques, and quantum signature schemes can be included as well. A quantum digital signature (QDS) [5] refers to the quantum mechanical equivalent of either a classical digital signature or a handwritten signature on a paper document to protect a document against forgery by anyone [6].…”

Section: Introductionmentioning

confidence: 99%

A (t,n)-Threshold Scheme of Multi-party Quantum Group Signature with Irregular Quantum Fourier Transform

Shi

Guo

et al. 2011

A novel (t, n)-threshold scheme for the multi-party quantum group signature is proposed based on the irregular quantum Fourier transform, in which every t-qubit quantum message needs n participants to generate the quantum group signature. All the quantum operation gates in the quantum circuit can be distributed and arranged randomly in the irregular QFT algorithm, which can increase the von Neumann entropy of the signed quantum message and the randomicity of the quantum signature generation significantly. The generation and verification of the quantum group signature can be both performed in quantum circuits with the parallel algorithm. Security analysis shows that an available and legal quantum (t, n)-threshold group signature can be achieved.