key+block

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• key block — noun chiefly Britain : key plate …   Useful english dictionary

• Key block — Клише с контурным рисунком …   Краткий толковый словарь по полиграфии

• Media Key Block — La Media Key Block (MKB) est une clé faisant partie du système de protection anti copie (DRM) AACS. Ce système est utilisé pour protéger le contenu des formats Blu ray et HD DVD et a été développé par de grandes entreprises aussi bien de… …   Wikipédia en Français

• Media Key Block — The Media Key Block (MKB) is one of the keys that are included inside the copying protection system (DRM) AACS. This system is used to protect Blu ray and HD DVD formats from being copied. The system has been developed by big companies from the… …   Wikipedia

• Key Wrap — constructions are a class of symmetric encryption algorithms designed to encapsulate (encrypt) cryptographic key material. The Key Wrap algorithms are intended for applications such as (a) protecting keys while in untrusted storage, or (b)… …   Wikipedia

• Key West International Airport — Key West International Airport …   Deutsch Wikipedia

• 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 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

• 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

• Key whitening — In cryptography, key whitening is a technique intended to increase the security of an iterated block cipher. It consists of steps that combine the data with portions of the key (most commonly using a simple XOR) before the first round and after… …   Wikipedia

• Key (cryptography) — In cryptography, a key is a piece of information (a parameter) that determines the functional output of a cryptographic algorithm or cipher. Without a key, the algorithm would produce no useful result. In encryption, a key specifies the… …   Wikipedia