Learn what hash functions are, how they work, and why they are useful in data structures, cryptography, and data integrity. Explore different types of hash functions, such as division, multiplication, folding, and cryptographic hash functions, with examples and advantages.

Learn what hash functions are and how to choose a good one for hashing. Compare the mod and multiplication methods and their advantages and disadvantages.

A cryptographic hash function (CHF) is an equation that is widely used to verify the validity of data. It has many applications, particularly in information security (e.g. user authentication). A CHF translates data of various lengths of the message into a fixed-size numerical string the hash.

A good hash function has the following properties: Given a hash of a message it is computationally infeasible for an attacker to find another message such that their hashes are identical. Given a pair of message, m' and m, it is computationally infeasible to find two such that that h(m) = h(m') The two cases are not the same. In the first case ...

Learn about hash functions, their properties, applications and security issues. A hash function maps arbitrary strings of data to fixed length output, and should look random and collision resistant.

Learn about the approved hash algorithms for generating a condensed representation of a message, such as SHA-1, SHA-2, and SHA-3. Find out their security strengths, testing requirements, and related publications from NIST CSRC.

Learn what a hash function is and how it is used to scramble, encrypt, and verify data. Find out the properties of hash functions and see examples of how they are applied in web security, digital signatures, and data caching.

Learn what hash functions are, how they work, and why they are important in cryptography. See examples of hash functions such as SHA-256 and SHA3-256, and how to use them in Python and JavaScript.