Generated Hashes
Hash Functions for Integrity Verification
Cryptographic hash functions produce a fixed-size digest from arbitrary input. Same input always produces the same hash; any change produces a completely different hash (avalanche effect). MD5 (128-bit, broken for collision resistance but still used for checksums), SHA-1 (160-bit, deprecated after SHAttered 2017), SHA-256 (256-bit, current standard), SHA-3 (newest NIST standard). Hashes verify file integrity after download, deduplicate data in backup systems, and commit changes in git.
CLI Equivalent
echo -n "hello" | sha256sum
echo -n "hello" | md5sum
echo -n "hello" | md5sum