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Qué (quién) es knapsack hash function - definición
SELECTION OF A HASH FUNCTION AT RANDOM FROM A FAMILY OF HASH FUNCTIONS WITH A CERTAIN MATHEMATICAL PROPERTY, GUARANTEEING A LOW NUMBER OF COLLISIONS IN EXPECTATION, EVEN IF THE DATA IS CHOSEN BY AN ADVERSARY
Universal hash function; Universal hashing function; Universal hash; Universal family
one-way hash function
SPECIAL CLASS OF HASH FUNCTION THAT HAS CERTAIN PROPERTIES WHICH MAKE IT SUITABLE FOR USE IN CRYPTOGRAPHY
Message digest; Cryptographic hash; Cryptographic message digest; One-way hash; Modification Detection Code; Cryptographic hash functions; Hash function (cryptography); One-way hash function; CRHF; Secure hash function; One way encryption; Numerical hash; Cryptograhic hash; Cryptographic hash value; Cryptographic Hash Function; Cryptographic one-way hash function; Message-digest; Message-digest algorithm; Sphincter hash; Terahash; Cryptographic hashing; Wide pipe; Wide pipe hash; Wide pipe design; Wide pipe construction; Wide-pipe; Widepipe; Narrowpipe; Narrow-pipe; Narrow pipe; Applications of cryptographic hash functions; Cryptographic hashes; Hash (cryptography)
<algorithm> (Or "message digest function") A {one-way
function} which takes a variable-length message and produces a
fixed-length hash. Given the hash it is computationally
infeasible to find a message with that hash; in fact one can't
determine any usable information about a message with that
hash, not even a single bit. For some one-way hash functions
it's also computationally impossible to determine two messages
which produce the same hash.
A one-way hash function can be private or public, just like an
encryption function. MD5, SHA and Snefru are examples of
public one-way hash functions.
A public one-way hash function can be used to speed up a
public-key digital signature system. Rather than sign a
long message, which can take a long time, compute the one-way
hash of the message, and sign the hash.
{sci.crypt FAQ
(ftp://src.doc.ic.ac.uk/usenet/usenet-by-group/sci.crypt/) }.
(2001-05-10)
Hash function security summary
PUBLICLY KNOWN ATTACKS AGAINST CRYPTOGRAPHIC HASH FUNCTIONS
Hash function security; Hash security summary; Hash security; Hash function security overview
This article summarizes publicly known attacks against cryptographic hash functions. Note that not all entries may be up to date.
LSH (hash function)
CRYPTOGRAPHIC HASH FUNCTION
Draft:LSH (hash function)
LSH is a cryptographic hash function designed in 2014 by South Korea to provide integrity in general-purpose software environments such as PCs and smart devices. LSH is one of the cryptographic algorithms approved by the Korean Cryptographic Module Validation Program (KCMVP).
Wikipedia
Universal hashing
In mathematics and computing, universal hashing (in a randomized algorithm or data structure) refers to selecting a hash function at random from a family of hash functions with a certain mathematical property (see definition below). This guarantees a low number of collisions in expectation, even if the data is chosen by an adversary. Many universal families are known (for hashing integers, vectors, strings), and their evaluation is often very efficient. Universal hashing has numerous uses in computer science, for example in implementations of hash tables, randomized algorithms, and cryptography.
