Perceptual hash functions aim to imitate human perception by focusing on the types of features that drive human sight and hearing.

A hash is a mathematical function that maps data of arbitrary size to a fixed-size value that is encrypted.

In the world of decentralization, distributed hash tables (DHTs) recently have had a revolutionary effect. The chaotic, ad hoc topologies of the first-generation peer-to-peer architectures have been ...

What does cryptographic hash function actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Making fast hash tables in programming, which don't cause collision trouble, is one of computing's holy grails. Facebook thinks it's created a good one.

In Ruby’s defense, however, hash tables were only ever used for closure scopes (blocks, etc), and no modern implementations of Ruby use hash tables for locals in any way.