Keccak-256 (pronounced: KET-CHEK) is one of the world’s leading hash functions that has been developed outside of the NSA and even been recognized and rewarded by the NIST. The only hash function to be considered secure enough to compete with the industry-standard SHA-256.
Keccak-256 is actually one of the most widely implemented hashing functions within the crypto industry in projects such as Ethereum & Monero.