hash - Why can't we reverse hashes? - Cryptography Stack Exchange
Apr 6, 2017 · A cryptographic hash function is a special class of hash function that has certain properties which make it suitable for use in cryptography. Useful reading - it goes into more detail of the …
What is the fastest stable 128-bit non-cryptographic hash function?
Feb 23, 2024 · 2 I need a stable 128-bit hash function which is extremely fast since it will be used for generating unique IDs for billions of objects. It doesn't need to be a cryptographic hash function, nor …
hash - What are preimage resistance and collision resistance, and how ...
What is "preimage resistance", and how can the lack thereof be exploited? How is this different from collision resistance, and are there any known preimage attacks that would be considered feasible?
Difference between "one-way function" and "cryptographic hash …
Jun 19, 2013 · Hmm. Was this question asking about the difference between one-way hash functions and cryptographic hash functions, or general one-way functions and cryptographic hash functions? …
How to find the 6 main properties of cryptographic hash functions …
Jan 19, 2022 · A cryptographic hash function should resist attacks on its pre-image. The first 3 I think are pretty easy to adhere to as far as I can imagine so far (not having implemented a cryptographically …
terminology - Does a hash function necessarily need to allow arbitrary ...
Jan 11, 2021 · A hash function is any function that can be used to map data of arbitrary size to fixed-size values. However, some functions like bcrypt, which label themselves as password hash functions, …
What is the difference between a digest and a hash function?
Sep 1, 2017 · A hash function is any function that can be used to map data of arbitrary size to data of fixed size. The values returned by a hash function are called hash values, hash codes, digests, or …
Cryptographic hash function for 32-bit length input keys
What I need is a cryptographic hash function that receives a 32-bit length key, and – preferably with basic math operations (addition, shifting, negating, multiplication) – delivers a preferably 32-bit length …
What is a cryptographic "salt"? - Cryptography Stack Exchange
Can you help me understand what a cryptographic “salt” is? In the context of password creation, a "salt" is data (random or otherwise) added to a hash function in order to make the hashed output of a …
What's the name of the property of ideal cryptographic hash functions ...
Nov 21, 2023 · I second the : "indistinguishability" (from a "random oracle" or a "random function") is the name of the property thought. Addressing the last question: indistinguishability is typically the …