quantum cryptography

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quantum cryptography

n.
Any of various techniques that exploit quantum-mechanical phenomena, such as superposition or quantum entanglement, to generate and share between two parties a private key that can be used to encrypt and decrypt data. Current techniques also reveal any attempt to intercept the private key during its creation.

quantum cryptography

n
(Atomic Physics) a method of coding information based on quantum mechanics, which is said to be unbreakable
Translations
cryptographie quantique
References in periodicals archive ?
Launched in June 2018, Phio(TM) by Quantum Xchange is the first quantum-secure network in the United States and features ID Quantique's third-generation QKD equipment.
Qutech is a research group and the two firms are planning to implement QKD in the near future.
Protocols continue to develop to seek a measurement-device-independent QKD, theorised to remove all attacks from the detection system.
So successfully, in fact, that Zeilinger was only too happy when his former student proposed a collaboration on intercontinental QKD in 2011.
Quantum Xchange's first QKD network will connect the financial markets on Wall Street with back office operations in New Jersey, helping banks keep high- value transactions and mission-critical data safe and secure.
In addition to the protocols (i.e., QKD protocol, QOT protocol, and QA protocol) we discussed above, quantum cryptography protocols also include quantum bit commitment (QBC) protocols [29, 30] and quantum signature (QS) protocols [31, 32].
Though QKD was first theorized in 1984 and implemented shortly thereafter, the technologies to support its wide-scale use are only now coming online.
These include ground-to-satellite quantum teleportation, KHz rate satellite-to-ground decoy-state QKD over a distance of about 750 miles and satellite-based entanglement distribution between two points on Earth separated by about the same distance.
Now, we explain the original QKD protocol based on single-photon transmission.
[6, 7], the polar codes can be used in the reconciliation stage of the quantum key distribution (QKD) protocol.
In the above equations, the subscript a represents the sector category; QVA represents gross value added output, PVA represents gross value added price; QKD represents demand for capital; QLRD represents rural labor demand, QLUD represents urban labor demand, ad represents the production technology level of value added, tvalr and tvalu respectively represent the value added tax created by rural laborers and that by urban laborers, alphalabr and alphalabu respectively represent the elasticity coefficient of rural labor output and that of urban labor output; tvak represents value added tax of capital, alphacap represents the elasticity coefficient of capital output.
Quantum cryptography is also well known as quantum key distribution (QKD).