# birthday attack

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**Birthday attack**— A birthday attack is a type of cryptographic attack, so named because it exploits the mathematics behind the birthday problem in probability theory. Given a function f , the goal of the attack is to find two inputs x 1,x 2 such that f(x 1)=f(x 2) … Wikipedia**Birthday problem**— In probability theory, the birthday problem, [This is not a paradox in the sense of leading to a logical contradiction, but is called a paradox because the mathematical truth contradicts naïve intuition: most people estimate that the chance is… … Wikipedia**Birthday**— For other uses, see Birthday (disambiguation). Candles spell out the traditional English birthday greeting A birthday is a day or anniversary where a person celebrates his or her date of birth. Birthdays are celebrated in numerous cultures, often … Wikipedia**Attack of the Killer Kung-Fu Wolf Bitch**— Infobox Boondocks Episode Title = Attack of the Killer Kung Fu Wolf Bitch Caption = Robert s date, Luna, going against Huey in a friendly sparring match . Airdate = November 19, 2007 Season no. = 2 Episode no. = 21 Production no. = 207 Writer =… … Wikipedia**Birthday Cake Interview**— The Birthday Cake Interview refers to a famous political interview in Australia that was carried out between interviewer Mike Willesee and Liberal Party Opposition Leader Dr John Hewson shortly before the 1993 federal election. It is remembered… … Wikipedia**Collision attack**— In cryptography, a collision attack on a cryptographic hash tries to find two arbitrary inputs that will produce the same hash value, i.e. a hash collision. In contrast to a preimage attack, neither the hash value nor one of the inputs is… … Wikipedia**Meet-in-the-middle attack**— Not to be confused with man in the middle attack. The meet in the middle attack is a cryptographic attack which, like the birthday attack, makes use of a space time tradeoff. While the birthday attack attempts to find two values in the domain of… … Wikipedia**Preimage attack**— In cryptography, a preimage attack on a cryptographic hash is an attempt to find a message that has a specific hash value. There are two types of preimage attacks:* First preimage attack : given a hash h , find a message m such that hash(m) = h … Wikipedia**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**Stream cipher attack**— Stream ciphers, where plaintext bits are combined with a cipher bit stream by an exclusive or operation (xor), can be very secure if used properly. However they are vulnerable to attack if certain precautions are not followed:*keys must never be… … Wikipedia