testing every possible means
51Tautology (logic) — In propositional logic, a tautology (from the Greek word ταυτολογία) is a propositional formula that is true under any possible valuation (also called a truth assignment or an interpretation) of its propositional variables. For example, the… …
52Digital electronics — Main articles: Electronics and Electronic circuit Digital electronics represent signals by discrete bands of analog levels, rather than by a continuous range. All levels within a band represent the same signal state. Relatively small changes to… …
53Ruffini's rule — In mathematics, Ruffini s rule allows the rapid division of any polynomial by a binomial of the form x − r . It was described by Paolo Ruffini in 1809. Ruffini s rule is a special case of long division when the divisor is a linear factor. Ruffini …
54Brute 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… …
55Password strength — is a measurement of the effectiveness of a password as an authentication credential. Specifically, it estimates how many trials an attacker who does not have direct access to the password would need, on average, to correctly guess it. The… …
56One-time pad — Excerpt from a one time pad In cryptography, the one time pad (OTP) is a type of encryption, which has been proven to be impossible to crack if used correctly. Each bit or character from the plaintext is encrypted by a modular addition with a bit …
57Charles Lindbergh — This article is about the 20th Century aviator. For other uses, see Charles Lindbergh (disambiguation). Charles Lindbergh Charles Lindbergh, photo by Harris Ewing Born February 4, 1902(1902 …
58Data Encryption Standard — The Feistel function (F function) of DES General Designers IBM First publis …
59Cabal Online — Infobox VG title = Cabal Online developer = ESTsoft Corp. publisher = flagicon|United States|size=18px/flagicon|Canada|size=18px OGPlanet flagicon|China|size=18px Moliyo flagicon|Europe|size=18px Games Masters… …
60thermodynamics — thermodynamicist, n. /therr moh duy nam iks/, n. (used with a sing. v.) the science concerned with the relations between heat and mechanical energy or work, and the conversion of one into the other: modern thermodynamics deals with the properties …
