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Quantum Cryptography Protocols
Quantum key distribution (QKD) protocols are used in quantum key distribution. The first protocol of that kind was BB84, introduced in 1984 by Charles H. Bennett and Gilles Brassard Gilles Brassard is a faculty member of the Université de Montréal, where he has been a Full Professor since 1988 and Canada Research Chair since 2001. Education and early life Brassard received a Ph.D. in Computer Science from Cornell Univers .... After that, many other protocols have been defined. List of quantum key distribution protocols * BB84 (1984) is a quantum key distribution scheme that allows two parties to securely communicate a private key for use in one-time pad encryption using the quantum property that information gain is only possible at the expense of disturbing the signal if the two states one is trying to distinguish are not orthogonal and an authenticated public classical channel. * E91 protocol (1991) is a quantum cryptography method that uses entangled pairs of photons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Key Distribution
Quantum key distribution (QKD) is a secure communication method that implements a cryptographic protocol involving components of quantum mechanics. It enables two parties to produce a shared random secret key known only to them, which then can be used to encrypt and decrypt messages. The process of quantum key distribution is not to be confused with quantum cryptography, as it is the best-known example of a quantum-cryptographic task. An important and unique property of quantum key distribution is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental aspect of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DPS Protocol
DPS may refer to: Arts and entertainment * Dps (band), a Japanese alt rock band * Damage per second, in video games * ''Dead Poets Society'', a 1989 film * The Dead Pop Stars, a Japanese hard rock band * Double page spread, two facing pages in a periodical with connected content * Dramatists Play Service, an American theatrical publisher Government, law and politics Government agencies * Department for Protection and Security, France * Department of Public Safety, in US state and local government * Public Safety Canada, (formally ''Public Safety and Emergency Preparedness''), Canada Policing units * Diplomatic Protection Squad, New Zealand Police * ''Dorozhno-Patrulnaya Sluzhba'' (), Russia's road traffic police * Directorate of Professional Standards, London Metropolitan Police Political parties * Democratic Party of Socialists of Montenegro, a political party in Montenegro * Department of Protection-Security (Département Protection et Sécurité), a branch of the Nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HDQKD
High-dimensional quantum key distribution (HDQKD) is a technology for secure communication between two parties. It allows for higher information efficiency than traditional binary quantum key distribution (QKD) protocols, which are limited to 1 bit/photon. HDQKD also exhibits higher resilience to noise, enabling lower signal-to-noise ratios and longer transmission distances. Implementation One way to implement HDQKD is by using space division multiplexing technology and encoding quantum information in the spatial dimension, such as with optical angular momentum (OAM) modes. While OAM modes have been demonstrated for HDQKD over free-space links, transmission over long-distance fiber Fiber (spelled fibre in British English; from ) is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often inco ... links is challenging due to intermodal crosstalk. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KMB09 Protocol
KMB09 protocol (named after Muhammad Mubashir Khan, Michael Murphy and Almut Beige) is an alternative quantum key distribution protocol, where Alice and Bob use two mutually unbiased bases with one of them encoding a ‘0’ and the other one encoding a ‘1’. The security of the scheme is due to a minimum index transmission error rate (ITER) and quantum bit error rate (QBER) introduced by an eavesdropper. The ITER increases significantly for higher-dimensional photon states. This allows for more noise in the transmission line In electrical engineering, a transmission line is a specialized cable or other structure designed to conduct electromagnetic waves in a contained manner. The term applies when the conductors are long enough that the wave nature of the transmis ..., thereby increasing the possible distance between Alice and Bob without the need for intermediate nodes.{{Cite journal , doi=10.1088/1367-2630/11/6/063043, title=High error-rate quantum key distribution for l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-stage Quantum Cryptography Protocol
The three-stage quantum cryptography protocol, also known as Kak's three-stage protocol is a method of data encryption that uses random polarization rotations by both Alice and Bob, the two authenticated parties, that was proposed by Subhash Kak. In principle, this method can be used for continuous, unbreakable encryption of data if single photons are used. It is different from methods of QKD (quantum key distribution) for it can be used for direct encryption of data, although it could also be used for exchanging keys. The basic idea behind this method is that of sending secrets (or valuables) through an unreliable courier by having both Alice and Bob place their locks on the box containing the secret, which is also called double-lock cryptography. Alice locks the box with the secret in it and it is transported to Bob, who sends it back after affixing his own lock. Alice now removes her lock (after checking that it has not been tampered with) and sends it back to Bob who, similarly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COW Protocol
Cattle (''Bos taurus'') are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Mature female cattle are called cows and mature male cattle are bulls. Young female cattle are called heifers, young male cattle are oxen or bullocks, and castrated male cattle are known as steers. Cattle are commonly raised for meat, for dairy products, and for leather. As draft animals, they pull carts and farm implements. Cattle are considered sacred animals within Hinduism, and it is illegal to kill them in some Indian states. Small breeds such as the miniature Zebu are kept as pets. Taurine cattle are widely distributed across Europe and temperate areas of Asia, the Americas, and Australia. Zebus are found mainly in India and tropical areas of Asia, America, and Australia. Sanga cattle are found primarily in sub-Saharan Africa. These types, sometimes classified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
