SHA-224 generator
What SHA-224 is
SHA-224 is SHA-256's little sibling: same compression core but a different initial vector and truncated output—28 bytes (56 hex chars). It exists where specs demanded a shorter SHA-2 footprint while staying inside the family's security assumptions.
When it shows up
Legacy government suites and constrained TLV slots that standardized SHA-224 explicitly. If your protocol allows arbitrary digest sizes, prefer clarity about SHA-256 versus truncation modes rather than guessing.
Tip
Do not confuse SHA-224 with SHA-512/224—they derive from different internal widths.
Password hashing?
Still inappropriate—single-pass hashes are too fast.