ciphertext generator - определение. Что такое ciphertext generator
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Что (кто) такое ciphertext generator - определение

ATTACK MODEL FOR CRYPTANALYSIS WHERE THE ATTACKER HAS ACCESS TO A SET OF CIPHERTEXTS
Ciphertext only attack; Ciphertext-only; Known ciphertext attack; Known-ciphertext attack; Known ciphertext; Known-ciphertext

Electric generator         
  • Hydroelectric power station at [[Gabčíkovo Dam]], [[Slovakia]]
  • Protesters at [[Occupy Wall Street]] using bicycles connected to a motor and one-way diode to charge batteries for their electronics<ref>[http://cityroom.blogs.nytimes.com/2011/10/30/with-generators-gone-wall-street-protesters-try-bicycle-power/ With Generators Gone, Wall Street Protesters Try Bicycle Power], Colin Moynihan, ''New York Times'', 30 October 2011; accessed 2 November 2011</ref>
  • The [[Faraday disk]] was the first electric generator. The horseshoe-shaped magnet ''(A)'' created a magnetic field through the disk ''(D)''. When the disk was turned, this induced an electric current radially outward from the center toward the rim. The current flowed out through the sliding spring contact ''m'', through the external circuit, and back into the center of the disk through the axle.
  • alternating current generator]], c. 1900.
  • Early [[Ganz]] Generator in [[Zwevegem]], [[West Flanders]], [[Belgium]]
  •  R<sub>L</sub>, load resistance
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  • The [[Athlone Power Station]] in [[Cape Town]], [[South Africa]]
  • commutator]] needed for high power applications.
  • Mobile electric generator
  • kVA]] direct-driven power station AC alternator, with a separate belt-driven exciter generator.
  • [[Hippolyte Pixii]]'s dynamo. The commutator is located on the shaft below the spinning magnet.
DEVICE THAT CONVERTS OTHER ENERGY TO ELECTRICAL ENERGY
Generator (device); Electrical generators; Power unit; Electricity generator; Direct-current generator; Emergency vehicle generator; Energy generator; Electric generators; Turbine generator (TG); AC generator; Tachogenerator; Electric power generator; Electrical Generator; Electrical generator; DC Generator; Turbine generator; Energy generation; DC generator; Generator (electricity)
In electricity generation, a generatorAlso called electric generator, electrical generator, and electromagnetic generator. is a device that converts motive power (mechanical energy) into electric power for use in an external circuit.
Induction generator         
  • Equivalent circuit of induction generator
IN ELECTRICITY
Asynchronous generator
·add. ·- A machine built as an induction motor and driven above synchronous speed, thus acting as an alternating-current generator;
- called also asynchronous generator. Below synchronism the machine takes in electrical energy and acts as an induction motor; at synchronism the power component of current becomes zero and changes sign, so that above synchronism the machine (driven for thus purpose by mechanical power) gives out electrical energy as a generator.
Magnetohydrodynamic generator         
  • Diagram of a disk MHD generator showing current flows
  • Diagram of a Hall MHD generator showing current flows
  • U-25 scale model
MAGNETOHYDRODYNAMIC CONVERTER THAT UTILIZES A BRAYTON CYCLE TO TRANSFORM THERMAL ENERGY AND KINETIC ENERGY DIRECTLY INTO ELECTRICITY
MHD dynamo; Magnetohydrodynamic dynamo; Magnetohydrodynamic Power Generator; MHD Generator; Magnetohydrodynamic Generator; Magnetohydrodynamic power generator; MHD generator; MHD power conversion; Magnetohydrodynamic power conversion; MHD power generation; Magnetohydrodynamic power generation
A magnetohydrodynamic generator (MHD generator) is a magnetohydrodynamic converter that utilizes a Brayton cycle to transform thermal energy and kinetic energy directly into electricity. MHD generators are different from traditional electric generators in that they operate without moving parts (e.

Википедия

Ciphertext-only attack

In cryptography, a ciphertext-only attack (COA) or known ciphertext attack is an attack model for cryptanalysis where the attacker is assumed to have access only to a set of ciphertexts. While the attacker has no channel providing access to the plaintext prior to encryption, in all practical ciphertext-only attacks, the attacker still has some knowledge of the plaintext. For instance, the attacker might know the language in which the plaintext is written or the expected statistical distribution of characters in the plaintext. Standard protocol data and messages are commonly part of the plaintext in many deployed systems and can usually be guessed or known efficiently as part of a ciphertext-only attack on these systems.