HASH - WHAT WOULD HAPPEN SHA-256 COLLISION WERE TO BE FOUND?
Nov 14, 2023 As far as I and this wikipedia page know, there are no collisions (2 inputs with the same output) found in SHA-256 (yet). what would happen if a collision were to be found, 1. would it be easier to... From cs.stackexchange.com
HASH SIZE: ARE PRIME NUMBERS "NEAR" POWERS OF TWO A POOR …
For example, suppose we wish to allocate a hash table, with collisions resolved by chaining, to hold roughly n = 2000 n = 2000 character strings, where a character has 8 bits. We don't mind examining an average of 3 elements in an unsuccesful … From cs.stackexchange.com
CRYPTOGRAPHY - GIVEN A STRING, IS IT POSSIBLE TO DETERMINE WHICH ...
Dec 31, 2016 2) a definite hash of a specific hashing algorithm? Possible methods: 1) For hashes susceptible to rainbow-table attacks, it would be viable to search for the hash in such a rainbow table for various algorithms, to find a match; if … From cs.stackexchange.com
With four hash functions instead of two and one entry per slot, you can increase the density to 99%, but now you might need to compute up to four hash values as well as doing the four comparisons. From cs.stackexchange.com
HASH - DO PASSWORDS NEED A MAX LENGTH? - COMPUTER SCIENCE …
Jul 26, 2023 A perfect hash would completely avoid any collision between passwords up to the length of the hash. For typical hash lengths, that means that collisions on passwords longer than the original are so rare that they simply preclude any brute-force search. From cs.stackexchange.com
WHAT IS THE ADVANTAGE OF SEPERATE CHAINING OVER OPEN ADDRESSING?
6 Hash tables resolve collisions through two mechanisms, separate chaining or open hashing and open addressing or closed hashing. Though the first method uses lists (or other fancier data structure) in hash table to maintain more than one entry having same hash values, the other uses complex ways of skipping n elements on collsion. From cs.stackexchange.com
WHY NOT JUST USE A RANDOM NUMBER GENERATOR AS A HASH FUNCTION?
A hash function usually means a function that compresses, meaning the output is shorter than the input. Often, such a function takes an input of arbitrary or almost arbitrary length to one whose length is a fixed number, like 160 bits. Why not just use a … From cs.stackexchange.com
TERMINOLOGY - WHAT EXACTLY (AND PRECISELY) IS "HASH?" - COMPUTER ...
Apr 5, 2016 Wikipedia has detailed articles on hash tables and cryptographic hash functions. What are you looking for that isn't in those? From cs.stackexchange.com
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