variable block

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• Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… …   Wikipedia

• Block size (cryptography) — In modern cryptography, symmetric key ciphers are generally divided into stream ciphers and block ciphers. Block ciphers operate on a fixed length string of bits. The length of this bit string is the block size. Both the input (plaintext) and… …   Wikipedia

• Variable valve timing — Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift or duration or timing (some or all) of the intake or exhaust valves (or both) to be changed while the engine is in operation. Two… …   Wikipedia

• Variable displacement — is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large, multi cylinder engines. Many automobile manufacturers have… …   Wikipedia

• Block (programming) — In computer programming, a block is a section of code which is grouped together. Blocks consist of one or more declarations and statements. A programming language that permits the creation of blocks, including blocks nested within other blocks,… …   Wikipedia

• Variable (Programmierung) — In der Programmierung ist eine Variable im allgemeinsten Sinne einfach ein Behälter für Rechnungsgrößen („Werte“), die im Verlauf eines Rechenprozesses auftreten. Im Normalfall wird eine Variable durch einen Namen bezeichnet und hat eine… …   Deutsch Wikipedia

• Variable — A variable (pronEng|ˈvɛərɪəbl) is an attribute of a physical or an abstract system which may change its value while it is under observation. Examples include the height of a child, the temperature across a state, or the input to a function. This… …   Wikipedia

• Block-système — Le block système ou cantonnement est le moyen généralement employé pour assurer l espacement des trains circulant dans le même sens sur une même voie ferrée. Sommaire 1 Historique 2 Principe 2.1 Block système à voie fermée …   Wikipédia en Français

• Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… …   Wikipedia

• Variable-gain amplifier — A variable gain or voltage controlled amplifier is an electronic amplifier that varies its gain depending on a control voltage (often abbreviated CV). VCAs have many applications, including audio level compression, synthesizers and amplitude… …   Wikipedia

• Block Started by Symbol — a.out ist das ursprüngliche Dateiformat für ausführbare Dateien und Objektdateien von Unix ähnlichen Betriebssystemen. In der Praxis wurde dieses Format weitgehend durch seine Nachfolger Common Object File Format (COFF) und Executable and Linking …   Deutsch Wikipedia