Keccak Hashing

Definition ∞ Keccak hashing is a cryptographic hash function that processes input data to produce a fixed-size output, known as a hash value. It is a secure algorithm used for various cryptographic purposes, including data integrity checks, digital signatures, and proof-of-work mechanisms in some blockchain protocols. Keccak was selected as the SHA-3 standard by NIST, demonstrating its robust security properties against various attacks. Its design involves a sponge construction, making it highly efficient and collision-resistant for digital applications.
Context ∞ In blockchain technology, Keccak hashing is prominently used in the Ethereum network for various operations, including address generation and transaction hashing. News often references Keccak when discussing the security and efficiency of smart contracts and protocol upgrades. Its adoption by major blockchain platforms underscores its importance in securing decentralized systems and verifying data integrity across networks.