Generate Keccak-512 hashes online. Keccak-512 is the 512-bit original Keccak digest with the widest capacity, distinct from FIPS 202 SHA3-512.
Keccak-512 produces a 512-bit (128 hex character) digest using the original Keccak algorithm with the largest capacity of the family. It uses the original padding rather than the NIST domain suffix introduced in SHA3-512. It appears when reproducing hashes from pre-standard Keccak implementations and in some blockchain and cryptographic libraries that standardized on original Keccak.
Input:
abc
Output:
18587dc2ea106b9a1563e32b3312421ca164c7f1f07bc922a9c83d77cea3a1e5d0c69910739025372dc14ac9642629379540c17e2a65b19d77aa511a9d00bb96
Keccak-512 vs SHA3-512?
Same sponge and output size, different padding. Keccak-512 is the original; SHA3-512 adds the NIST 01 suffix, so digests differ.
Is Keccak-512 secure?
Yes. It has the highest capacity and security margin of the Keccak family and no known practical attacks.
Output length?
512 bits, written as 128 hexadecimal characters.
Create Keccak-512 hashes, a variant of the SHA-3 algorithm providing 512-bit hash output.
Supported Tools: