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SHA-256/384/512
The SHA-2 hash family at three output sizes — 256, 384, or 512 bits — trading speed for a longer fingerprint.
These are members of the SHA-2 family differing mainly in digest length and internal word size; larger outputs give a wider security margin. All produce a deterministic, collision-resistant fingerprint of arbitrary input. Implementing all three lets a system match whatever digest size a protocol or peer requires.
See also
- SHA-2 / SHA-256A widely trusted family of cryptographic hash functions that turn any data into a fixed-size fingerprint.
- SHA-1An older cryptographic hash function now considered broken and kept only for backward compatibility.
- RSAA classic public-key cryptography system where a public key encrypts or verifies and a separate private key decrypts or signs.