SHA-256

SHA-256 is a member of the SHA-2 cryptographic hash functions designed by the NSA. SHA stands for Secure Hash Algorithm. Cryptographic hash functions are mathematical operations run on digital data; by comparing the computed “hash” (the output from execution of the algorithm) to a known and expected hash value, a person can determine the data’s integrity. A one-way hash can be generated from any piece of data, but the data cannot be generated from the hash.

SHA-256 is used in several different parts of the Bitcoin network:

  1. Mining uses SHA-256 as the Proof of Work algorithm.
  2. SHA-256 is used in the creation of bitcoin addresses to improve security and privacy.

See also

Attribution

This content is based on content sourced from https://en.bitcoin.it/wiki/SHA-256 under Creative Commons Attribution 3.0. Although it may have been extensively revised and updated we acknowledge the original authors.

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Written by Ramon Quesada

Passionate about Blockchain & Bitcoin technology since 2013, Co- Founder of https://avalbit.org, Team Manager in the CoinTelegraph Spain franchise (2016-2017 years) Co. Organizer of the Blockchain Boot camp Valencia 2018, Co. Organizer of the mini Hackathon BitcoinSV Barcelona, in August 2019, current coordinator of the BSV Valencia Meetup. https://telegra.ph/Ramon-Quesada---Links-01-10

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