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BLAKE2b and BLAKE2s hash functions (RFC 7693).
BLAKE2b (64-bit, 1..64 byte output) and BLAKE2s (32-bit, 1..32 byte output) are cryptographic hash functions designed as faster replacements for MD5 / SHA-1. Not FIPS-approved, but widely used in Argon2, libsodium, WireGuard, and many file-integrity tools.