Ethash is a proof-of-work mining algorithm implemented by the Ethereum network and Ethereum-based cryptocurrencies. Ethash is a successor of the previous Ethereum algorithm called Dagger-Hashimoto and is, in fact, an upgrade of it.

Which algorithm does Ethereum use?

Ethereum uses the Keccak-256 cryptographic hash function in many places. Keccak-256 was designed as a candidate for the SHA-3 Cryptographic Hash Function Competition held in 2007 by the National Institute of Science and Technology.

Does Ethereum use sha256?

Ethereum uses KECCAK-256.