keyspace attack
Look at other dictionaries:
brute-force attack — A technique employed by intruders that checks every password in a password file against every possible password generated sequentially. A brute force attack is very clumsy, is usually considered the last resort in an attack, takes a long… … Dictionary of networking
Correlation attack — In cryptography, correlation attacks are a class of known plaintext attacks for breaking stream ciphers whose keystream is generated by combining the output of several linear feedback shift registers (called LFSRs for the rest of this article)… … Wikipedia
Brute force attack — In cryptanalysis, a brute force attack is a method of defeating a cryptographic scheme by trying a large number of possibilities; for example, possible keys in order to decrypt a message. In most schemes, the theoretical possibility of a brute… … Wikipedia
Brute-force attack — The EFF s US$250,000 DES cracking machine contained over 1,800 custom chips and could brute force a DES key in a matter of days. The photograph shows a DES Cracker circuit board fitted with 32 Deep Crack chips and some control chips. In… … Wikipedia
Weak key — In cryptography, a weak key is a key which when used with a specific cipher, makes the cipher behave in some undesirable way. Weak keys usually represent a very small fraction of the overall keyspace, which usually means that if one generates a… … Wikipedia
Hill cipher — Hill s cipher machine, from figure 4 of the patent In classical cryptography, the Hill cipher is a polygraphic substitution cipher based on linear algebra. Invented by Lester S. Hill in 1929, it was the first polygraphic cipher in which it was… … Wikipedia
Перебор по словарю — (англ. dictionary attack) атака на систему защиты, использующая метод полного перебора (англ. brute force) предполагаемых паролей, используемых для аутентификации, осуществляемого путем последовательного пересмотра всех слов… … Википедия
Cryptanalysis — Close up of the rotors in a Fialka cipher machine Cryptanalysis (from the Greek kryptós, hidden , and analýein, to loosen or to untie ) is the study of methods for obtaining the meaning of encrypted information, without access to the secret… … Wikipedia
Cryptomeria cipher — The Feistel function of the Cryptomeria cipher. General Designers 4C Entity First published … Wikipedia
Key derivation function — KDF redirects here. For the Nazi organization, see Kraft durch Freude In cryptography, a key derivation function (or KDF) is a function which derives one or more secret keys from a secret value and/or other known information such as a password or … Wikipedia
