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

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

NIST is planning a competition to develop one or more cryptographic 'hash' algorithms to augment and revise the current Secure Hash Standard (Federal Information Processing Standard 180-2).

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