Additionally, a hash is supposed to be unique: no two (different) pieces of data should result in the same hash. If either of these things is no longer true, a hash function is considered to be broken ...

Bitcoin uses the SHA-256 hash function in its proof-of-work process. Proof-of-work is considered the original cryptocurrency consensus mechanism.

An attack on a fundamental proof technique reveals a glaring security issue for blockchains and other digital encryption ...

Perceptual hash functions are designed to return answers for images or sounds that a human might feel are similar. That is, small changes in the media don’t affect the output.

IOTA has just launched a new hash function, and is dishing out shares of a $220,000 bounty to anyone that can crack and improve its cryptography.

What does cryptographic hash function actually mean? ... This proof-of-work (PoW) system was also used by Ethereum prior to switching to proof-of-stake (PoS) in 2020.

Without cryptographic hash functions, the internet would simply not work. At the same time, there isn't a good theory of hash functions. Unlike encryption algorithms, ...

Rainbow tables are password cracking tools with origins dating back to research from the early 1980s. Here's how they work and why they haven't stood the test of time.