hash-function

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• Hash function — A hash function is any well defined procedure or mathematical function for turning some kind of data into a relatively small integer, that may serve as an index into an array. The values returned by a hash function are called hash values, hash… …   Wikipedia

• hash function —    A function that maps a data item to a numeric value by use of a transformation. A hash function can convert a number that has meaning to a user, such as a key or other identifier, into a value for the location of that data in a structure such… …   Dictionary of networking

• hash function — maišos funkcija statusas T sritis informatika apibrėžtis Funkcija, iš duomenų ↑įrašo arba jo ↑rakto (1), apskaičiuojanti ↑maišos reikšmę. Funkcijos algoritmas priklauso nuo to, kam bus naudojama jos reikšmė. Pavyzdžiui, jeigu projektuojama įrašų… …   Enciklopedinis kompiuterijos žodynas

• hash function — one way function (not reversible) that changes input data in to a unique digital code (also used in information security as a digital signature that identifies the sender and verifies the contents of the message) …   English contemporary dictionary

• hash function — noun an algorithm that generates a numeric, or fixed size character output from a variable sized piece of text or other data; used in database table queries, cryptography and in error checking …   Wiktionary

• Cryptographic hash function — A cryptographic hash function (specifically, SHA 1) at work. Note that even small changes in the source input (here in the word over ) drastically change the resulting output, by the so called avalanche effect. A cryptographic hash function is a… …   Wikipedia

• NIST hash function competition — Cryptography portal The NIST hash function competition is an open competition held by the US National Institute of Standards and Technology for a new SHA 3 function to replace the older SHA 1 and SHA 2, which was formally announced in the Federal …   Wikipedia

• Perfect hash function — A perfect hash function for a set S is a hash function that maps distinct elements in S to a set of integers, with no collisions. A perfect hash function has many of the same applications as other hash functions, but with the advantage that no… …   Wikipedia

• NIST hash function competition — La NIST hash function competition est une compétition organisée par la NIST afin de trouver une nouvelle fonction de hachage (SHA 3) destinée à remplacer les anciennes fonctions SHA 1 et SHA 2. Sommaire 1 Participants 1.1 Finalistes 1.2 …   Wikipédia en Français

• GOST (hash function) — The GOST hash function, defined in the standards GOST R 34.11 94 and GOST 34.311 95, is a 256 bit cryptographic hash function. It was initially defined in the Russia s national standard GOST R 34.11 94 Information Technology Cryptographic… …   Wikipedia

• The Hash Function Hamsi — Содержание 1 Краткое описание 2 История 3 The Hash Funtion Hamsi 3.1 Общая структу …   Википедия