Advances in quantum secure direct communication
نویسندگان
چکیده
منابع مشابه
Quantum Secure Direct Communication with Quantum Memory.
Quantum communication provides an absolute security advantage, and it has been widely developed over the past 30 years. As an important branch of quantum communication, quantum secure direct communication (QSDC) promotes high security and instantaneousness in communication through directly transmitting messages over a quantum channel. The full implementation of a quantum protocol always require...
متن کاملEfficient Controlled Quantum Secure Direct Communication Protocols
We study controlled quantum secure direct communication (CQSDC), a cryptographic scheme where a sender can send a secret bit-string to an intended recipient, without any secure classical channel, who can obtain the complete bit-string only with the permission of a controller. We report an efficient protocol to realize CQSDC using Cluster state and then go on to construct a (2-3)-CQSDC using Bro...
متن کاملControlled Bidirectional Quantum Secure Direct Communication
We propose a novel protocol for controlled bidirectional quantum secure communication based on a nonlocal swap gate scheme. Our proposed protocol would be applied to a system in which a controller (supervisor/Charlie) controls the bidirectional communication with quantum information or secret messages between legitimate users (Alice and Bob). In this system, the legitimate users must obtain per...
متن کاملQuantum Secure Conditional Direct Communication via Epr Pairs
Two schemes for quantum secure conditional direct communication are proposed, where a set of EPR pairs of maximally entangled particles in Bell states, initially made by the supervisor Charlie, but shared by the sender Alice and the receiver Bob, functions as quantum information channels for faithful transmission. After insuring the security of the quantum channel and obtaining the permission o...
متن کاملSecure Direct Communication Using Quantum Calderbank-Shor-Steane Codes
The notion of quantum secure direct communication (QSDC) has been introduced recently in quantum cryptography as a replacement for quantum key distribution, in which two communication entities exchange secure classical messages without establishing any shared keys previously. In this paper, a quantum secure direct communication scheme using quantum Calderbank-Shor-Steane (CCS) error correction ...
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ژورنال
عنوان ژورنال: IET Quantum Communication
سال: 2021
ISSN: 2632-8925,2632-8925
DOI: 10.1049/qtc2.12009