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Random number generation is a process by which, often by means of a random number generator ( RNG ), a sequence of numbers or symbols that cannot be reasonably predicted better than by random chance is generated. This means that the particular outcome sequence will contain some patterns detectable in hindsight but impossible to foresee.
Collision resistance. In cryptography, collision resistance is a property of cryptographic hash functions: a hash function H is collision-resistant if it is hard to find two inputs that hash to the same output; that is, two inputs a and b where a ≠ b but H ( a) = H ( b ). [1] : 136 The pigeonhole principle means that any hash function with ...
In particular, some of the encryption and authentication algorithms mentioned are no longer considered secure. When creating a "committed identity", only use cryptographic algorithms which are considered strong. In the wake of last week's report of five administrator accounts being hijacked by having their passwords cracked, Mangojuice (with ...
Randomness extractor. A randomness extractor, often simply called an "extractor", is a function, which being applied to output from a weak entropy source, together with a short, uniformly random seed, generates a highly random output that appears independent from the source and uniformly distributed. [1]
String-searching algorithm. In computer science, string-searching algorithms, sometimes called string-matching algorithms, are an important class of string algorithms that try to find a place where one or several strings (also called patterns) are found within a larger string or text. A basic example of string searching is when the pattern and ...
Time-based one-time password ( TOTP) is a computer algorithm that generates a one-time password (OTP) using the current time as a source of uniqueness. As an extension of the HMAC-based one-time password algorithm (HOTP), it has been adopted as Internet Engineering Task Force (IETF) standard RFC 6238.
A five string violin bears strong structural resemblance to a traditional violin. A five-string violin is a variant of violin with an extra string tuned below the violin's usual range. In addition to the G, D, A, and E strings of a standard violin, a five-string violin typically includes a lower C string. [1]
The Password Hashing Competition was an open competition announced in 2013 to select one or more password hash functions that can be recognized as a recommended standard. It was modeled after the successful Advanced Encryption Standard process and NIST hash function competition , but directly organized by cryptographers and security practitioners.
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