REVERSIBLE HASH FUNCTION (?) - COMPUTER SCIENCE STACK EXCHANGE
Oct 20, 2022 The keys to be stored in the hash table are known in advance. In this case, it is possible to construct a hash function that is injective over the set of stored keys; this is, … From cs.stackexchange.com
HASH - DO PASSWORDS NEED A MAX LENGTH? - COMPUTER SCIENCE …
Jul 26, 2023 Hash algorithms are designed to produce a practically random output, so for a 24-byte (192-bit) hash, you'd need on the order of $ 2^{96} $ or $ 10^{30} $ inputs to have an … From cs.stackexchange.com
WHY NOT JUST USE A RANDOM NUMBER GENERATOR AS A HASH FUNCTION?
If I understand the question correctly, the answer is simple: if Hash(object) returns 27 when you call it this afternoon, we want Hash(object) to return 27 if we call it next week, on a different … From cs.stackexchange.com
HASH SIZE: ARE PRIME NUMBERS "NEAR" POWERS OF TWO A POOR …
This answer possibly explains why choosing M(table size) equal to a power of 2 should be avoided.. Prime numbers that are too close to a power of 2 will provide the same kind of … From cs.stackexchange.com
HASH TABLES - NUMBER OF PROBES IN A SUCCESSFUL SEARCH IN OPEN …
Mar 17, 2021 Given an open-address hash table with $\alpha$ < 1, the expected number of probes in a successful search is at most $\frac{1}{\alpha}\ln\frac{1}{1-\alpha}$ I read this in a … From cs.stackexchange.com
HASH - HOW IS THIS THE EXPECTED NUMBER OF OF PROBES IN OPEN …
I am reading the "Introduction to Algorithms" by Thomas Cormen et al.Particularly the theorem which says that given an open-address hash table with load factor $\alpha = n/m < 1$, the … From cs.stackexchange.com
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. … From cs.stackexchange.com
TERMINOLOGY - WHAT EXACTLY (AND PRECISELY) IS "HASH?" - COMPUTER ...
Apr 5, 2016 Typically it is correct to say that the output of a hash function is a hash (aslo known as a hash value or a hash sum). However, sometimes people refer to the function itself as a … From cs.stackexchange.com
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