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arXiv:quant-ph/0503157 · IEEE International Conference on Computer and Information Technology (CIT)

Secure Data Transmission Using Qubits

Iman Marvian, Saied Hosseini-Khayat

Published Jan 1, 2006• 1 citation
arXivHTMLPDF

Abstract

A quantum protocol for secure transmission of data using qubits is presented. This protocol sends one qubit in a round-trip to transmit one bit of data. The protocol offers an improvement over the BB84 QKD protocol. BB84, in conjunction with one-time pad encryption, has been shown to be unconditionally secure. However its security relies on the assumption that the qubit source device does not emit multiple replicas of the same qubit for each transmitted bit. If this happens a multi-qubit emission attack can be launched. In addition, BB84 cannot be used to send predetermined bit strings as it generates a random bit string in the process. Our protocol does not have the above drawbacks, but requires an authenticated public channel in order to detect an intruder, in the way as BB84. Our protocol does not require a shared secret key.

DOI
10.1109/cit.2006.164

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A quantum protocol for secure transmission of data using qubits is presented. This protocol sends one qubit in a round-trip to transmit one bit of data. The protocol offers an improvement over the BB84 QKD protocol. BB84, in conjunction with one-time pad encryption, has been shown to be unconditionally secure. However its security relies on the assumption that the qubit source device does not emit multiple replicas of the same qubit for each transmitted bit. If this happens a multi-qubit emission attack can be launched. In addition, BB84 cannot be used to send predetermined bit strings as it generates a random bit string in the process. Our protocol does not have the above drawbacks, but requires an authenticated public channel in order to detect an intruder, in the way as BB84. Our protocol does not require a shared secret key.
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: Quantum computing is set to bring about a significant change in safe data transfer by utilising the fundamental principles of quantum physics to completely modify cryptographic systems. This analytical article explores advanced methods for securely transmitting data in quantum computing networks, with a specific focus on quantum key distribution (QKD), quantum encryption, and post-quantum cryptography. Quantum Key Distribution (QKD) is a significant breakthrough that enables two parties to generate a shared, unpredictable secret key that is exclusive to them. This key may be utilised to encode and decode communications securely. QKD, unlike traditional cryptography systems, use the properties of quantum physics, such as superposition and entanglement, to guarantee the detection of any eavesdropping attempts. This paper investigates different Quantum Key Distribution (QKD) protocols, such as BB84 and E91, by assessing their security assumptions, implementation difficulties, and practical uses. QKD's resilience against both quantum and classical attacks establishes it as a fundamental element of forthcoming secure communication infrastructures. Quantum encryption enhances the capacity for safe data transfer by employing quantum states to encode information, providing encryption systems that are theoretically impossible to crack. This study examines the progress made in quantum encryption methods, such as quantum bit commitment and quantum oblivious transmission, and emphasises their significance in improving privacy and security in quantum networks. An analysis is conducted on the incorporation of quantum encryption into current communication protocols, with a focus on the advantageous collaboration and technical challenges.