On the security of semi-device-independent QKD protocols

Chaturvedi, Anubhav; Ray, Maharshi; Veynar, Ryszard; Pawłowski, Marcin

doi:10.1007/s11128-018-1892-z

Cited by 14 publications

(5 citation statements)

References 30 publications

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“…Given a more promising for practical realization variant of this scheme exists, one should consider its robust version that can be realized in the laboratory, including all side effects that may potentially open it for the attacks of hackers. This aspect of the SDI QKD has been recently studied in [35,67,[69][70][71].…”

Section: Discussionmentioning

confidence: 99%

Semi-device-independent quantum money

Horodecki

Stankiewicz

2020

New J. Phys.

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The seminal idea of quantum money, not forgeable due to laws of Quantum Mechanics, proposed by Stephen Wiesner, has laid the foundations for the Quantum Information Theory in the early '70s.Recently, several other schemes for quantum currencies have been proposed, all, however, relying on the assumption that the quantum source device, acts according to its specification. This makes several known quantum money protocols vulnerable to the so-called hardware Trojan horse attacks. We, therefore, study the following problem: to what extent quantum money schemes can be made independent from the inner working of source and verification-devices used by the honest parties (bank and mint) in creating and processing the quantum money? Drawing inspirations from the semi-device-independent quantum key distribution protocol, we introduce the first scheme of quantum money with this assumption partially relaxed, along with the proof of its unforgeability. Finally, we formulate and discuss a quantum analog of the Oresme-Copernicus-Gresham's law of economy, that may hold in the future.

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Section: Discussionmentioning

confidence: 99%

Semi-device-independent quantum money

Horodecki

Stankiewicz

2020

New J. Phys.

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“…A possible attack on a wide class of protocols is for the eavesdropper, Eve, to intercept some of the transmitted states, perform some action on them, and in place pass (resend) some quantum states to Bob. The passed state can either be transformed [59,60], or Eve can measure the intercepted state and prepare a new one [61], or use some implementation-dependent attacks [62][63][64][65][66].…”

Section: Intercept and Resend Attacks In Quantum Cryptographymentioning

confidence: 99%

Quantum security and theory of decoherence

Mironowicz

2022

New J. Phys.

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We sketch a relation between two crucial, yet independent, fields in quantum information research, viz. quantum decoherence and quantum cryptography. We investigate here how the standard cryptographic assumption of shielded laboratory, stating that data generated by a secure quantum device remain private unless explicitly published, is disturbed by the einselection mechanism of quantum Darwinism explaining the measurement process by interaction with the external environment. We illustrate the idea with a paradigmatic example of a quantum random number generator compromised by an analog of the Van Eck phreaking. In particular, we derive a trade-off relation between eavesdropper's guessing probability Pguess and the collective decoherence factor Γ of the simple form Pguess + Γ ≥ 1.

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“…The eavesdroppers in quantum channel not only construct the devices used by the communicating party other than capable of vaguely modifying their actions. So Chaturvedi et al [23] proposed the SDIQKD protocol, which can analyze the quantum hacking attack and it finds the best solution. Also, their analysis is robust and deals with the worst scenario in many cases.…”

Section: Related Workmentioning

confidence: 99%

Enhancing the Quantum Communication Channel Using a Novel Quantum Binary Salt Blowfish Strategy

Kumari

2021

Wireless Pers Commun

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Protecting the data from malicious activities in wireless standards is one of the challenging key tasks. Moreover, cryptography plays a vital role in protecting the data in wireless channels. But some of the harmful attacks easily break the crypto algorithm, so quantum cryptography is introduced; it is the transmission of photon also proved better security for the quantum channel than the classical cryptography. So the attack in the quantum channel is difficult, but once if the quantum channel gets attacked by harmful attacks, then preventing them is too difficult. So, to enhance the security of the quantum channel, the current research proposed a novel Binary Salt Blowfish (BSB) for the encryption and decryption process. The aim of this proposed model is to enhance the security in the quantum channel against harmful activities. The proposed model is applied in the BB84 dataset; also, to check the efficiency of the proposed model, the attack like Man In The Middle (MITM) attack and Ciphertext Only Attack (COA) is launched in the quantum channel. But the quantum channel remains secure while in the presence of the attack by an efficient proposed algorithm. Finally, the efficiency of the proposed approach is compared with recent existing works and achieved better results by attaining better confidential as 99% and less error rate as 0.1. Also, it has improved the confidential rate up to 9% than the existing approaches.

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On the security of semi-device-independent QKD protocols

Cited by 14 publications

References 30 publications

Semi-device-independent quantum money

Semi-device-independent quantum money

Quantum security and theory of decoherence

Enhancing the Quantum Communication Channel Using a Novel Quantum Binary Salt Blowfish Strategy

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