Keccak-256
cryptography · hashing
A 256-bit Keccak hash function used in Ethereum for addresses, function selectors, event topics, and tooling.
- Also known as
- sha3 (keccak), keccak
Keccak-256 produces a 256-bit digest and is a core hash function in Ethereum-like environments. It is used in address derivation, log topics, function selectors, and many smart contract tools.
Ethereum's Keccak-256 is closely related to standardized SHA3-256 but differs in padding. Implementations must use the Ethereum-compatible variant when reproducing Ethereum hashes.
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