BLAKE2
also: BLAKE2b, BLAKE2s, b2sum
BLAKE2 is a fast cryptographic hash function that produces a fixed-size fingerprint of data, improving upon the original BLAKE algorithm with better performance and simplicity.
BLAKE2 is a modern cryptographic hash function designed for speed and security. It produces a deterministic output (typically 256 or 512 bits) from any input data, making it useful for verifying data integrity, creating checksums, and password hashing.
It's significantly faster than MD5, SHA-1, and SHA-2 on modern processors while maintaining high security standards. BLAKE2 comes in two main variants: BLAKE2b (512-bit output, optimized for 64-bit systems) and BLAKE2s (256-bit output, optimized for 8-bit to 32-bit systems).
Example usage with b2sum utility:
$ echo "hello" | b2sum
4d967a2a964769644c18a7d1f327590626ccb0f5f8201d039c65f6452fe7060b3cd2de6e This creates a BLAKE2b hash of the input text, useful for verifying file integrity or detecting tampering.