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Article
New Semi-Quantum Key Agreement Protocol Based on the χ-Type Entanglement States
A new two-party semi-quantum key agreement protocol is proposed with the four-particle χ-type entanglement states. In this protocol, the shared secret key is generated by using Bell measurement, Z-basis measur...
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Article
Offline Arbitrated Semi-Quantum Signature Scheme with Four-Particle Cluster State
The emergence of the semi-quantum concept makes it possible for people without quantum capabilities to communicate securely. An offline arbitrated semi-quantum signature scheme based on four-particle cluster s...
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Article
Three-Party Quantum Key Injection Scheme with W States
A three-party quantum key injection scheme based on quantum entanglement correlation and local operation of W states is proposed, and a detailed security analysis is provided. As a complete method of entanglem...
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Article
Multi-party semi-quantum secure direct communication protocol with cluster states
A new semi-quantum secure direct communication (SQSDC) protocol based on four-particle cluster states is designed. Different from the existing SQSDC protocols, this semi-quantum secure direct communication pro...
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Article
Quantum Private Comparison Protocol Based on Four-Particle GHZ States
A new quantum private comparison protocol with four-particle GHZ states is proposed. Unlike most previous quantum private comparison protocols, this quantum private comparison protocol can compare the equality...
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Article
Semi-Quantum Bi-Signature Scheme Based on W States
A semi-quantum bi-signature scheme based on W states is designed, in which two signers sign the same message. The unconditional security of the new semi-quantum bi-signature scheme is guaranteed with the telep...
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Article
Multiparty Quantum Key Agreement Protocol with Entanglement Swap**
Secure and fair multiparty quantum key agreement protocols demand all participants influence and negotiate the shared secret key with equal right and nobody can determine the shared secret key only by himself....
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Article
Three-Party Quantum Key Agreement Protocol with Seven-Qubit Entangled States
A new three-party quantum key agreement protocol based on seven-qubit states is proposed. In this protocol, each participant adopts different encryption methods to transmit a secret key of the same length. Sub...
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Article
New Quantum Key Distribution Scheme Based on Random Hybrid Quantum Channel with EPR Pairs and GHZ States
A theoretical quantum key distribution scheme based on random hybrid quantum channel with EPR pairs and GHZ states is devised. In this scheme, EPR pairs and tripartite GHZ states are exploited to set up random...
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Article
Novel Multi-Party Quantum Key Agreement Protocol with G-Like States and Bell States
A significant aspect of quantum cryptography is quantum key agreement (QKA), which ensures the security of key agreement protocols by quantum information theory. The fairness of an absolute security multi-part...