Generate Keccak-224 hashes online. Keccak-224 is the 224-bit original Keccak digest using the pre-standardization padding, distinct from FIPS 202 SHA3-224.
Keccak-224 produces a 224-bit (56 hex character) digest using the original Keccak algorithm as submitted to the SHA-3 competition. It predates the FIPS 202 standard and therefore uses the original pad10*1 padding without the NIST domain-separation suffix. It is mostly encountered when reproducing hashes from systems built on the original Keccak reference rather than the later SHA-3 standard.
Input:
abc
Output:
c30411768506ebe1c2871b1ee2e87d38df342317300a9b97a95ec6a8
How is Keccak-224 different from SHA3-224?
SHA3-224 appends the NIST suffix 01 before padding; Keccak-224 does not. Same input, different digest.
When would I need Keccak-224?
When matching output from software that uses the original Keccak implementation rather than the standardized SHA-3.
What is the digest length?
224 bits, shown as 56 hexadecimal characters.
Create Keccak-224 hashes, a variant of the SHA-3 algorithm providing 224-bit hash output.
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