List of hash functions

This is a list of hash functions, including cyclic redundancy checks, checksum functions, and cryptographic hash functions.

Cyclic redundancy checks

Main article: Cyclic redundancy check

Name	Length	Type
cksum (Unix)	32 bits	CRC with length appended
CRC-16	16 bits	CRC
CRC-32	32 bits	CRC
CRC-32 MPEG-2	32 bits	CRC
CRC-64	64 bits	CRC

Adler-32 is often mistaken for a CRC, but it is not, it is a checksum.

Checksums

Main article: Checksum

Name	Length	Type
BSD checksum (Unix)	16 bits	sum with circular rotation
SYSV checksum (Unix)	16 bits	sum with circular rotation
sum8	8 bits	sum
sum16	16 bits	sum
sum24	24 bits	sum
sum32	32 bits	sum
fletcher-4	4 bits	sum
fletcher-8	8 bits	sum
fletcher-16	16 bits	sum
fletcher-32	32 bits	sum
Adler-32	32 bits	sum
xor8	8 bits	sum
Luhn algorithm	1 decimal digit	sum
Verhoeff algorithm	1 decimal digit	sum Universal hash function families Main article: Universal hashing Name Length Type Rabin fingerprint variable multiply tabulation hashing variable XOR universal one-way hash function Zobrist hashing variable XOR Non-cryptographic hash functions Name Length Type Pearson hashing 8 bits (or more) XOR/table Paul Hsieh's SuperFastHash 32 bits Buzhash variable XOR/table Fowler–Noll–Vo hash function (FNV Hash) 32, 64, 128, 256, 512, or 1024 bits xor/product or product/XOR Jenkins hash function 32 or 64 bits XOR/addition Bernstein's hash djb2 32 or 64 bits shift/add or mult/add or shift/add/xor or mult/xor PJW hash / Elf Hash 32 or 64 bits add,shift,xor MurmurHash 32, 64, or 128 bits product/rotation Fast-Hash 32, 64 bits xorshift operations SpookyHash 32, 64, or 128 bits see Jenkins hash function CityHash 32, 64, 128, or 256 bits FarmHash 32, 64 or 128 bits MetroHash 64 or 128 bits numeric hash (nhash) variable division/modulo xxHash 32, 64, 128 bits product/rotation t1ha (Fast Positive Hash) 64 and 128 bits product/rotation/XOR/add pHash fixed or variable see Perceptual hashing dhash 128 bits see Perceptual hashing SDBM 32 or 64 bits mult/add or shift/add also used in GNU AWK Keyed cryptographic hash functions Main article: Message authentication code Name Tag Length Type BLAKE2 arbitrary keyed hash function (prefix-MAC) BLAKE3 arbitrary keyed hash function (supplied IV) HMAC KMAC arbitrary based on Keccak MD6 512 bits Merkle tree NLFSR One-key MAC (OMAC; CMAC) PMAC (cryptography) Poly1305-AES 128 bits nonce-based SipHash 64 bits non-collision-resistant PRF HighwayHash 64, 128 or 256 bits non-collision-resistant PRF UMAC VMAC Unkeyed cryptographic hash functions Main article: Cryptographic hash function See also: Comparison of cryptographic hash functions Name Length Type BLAKE-256 256 bits HAIFA structure BLAKE-512 512 bits HAIFA structure BLAKE2s up to 256 bits HAIFA structure BLAKE2b up to 512 bits HAIFA structure BLAKE2X arbitrary HAIFA structure, extensible-output functions (XOFs) design BLAKE3 arbitrary Merkle tree ECOH 224 to 512 bits hash FSB 160 to 512 bits hash GOST 256 bits hash Grøstl up to 512 bits hash HAS-160 160 bits hash HAVAL 128 to 256 bits hash JH 224 to 512 bits hash LSH 256 to 512 bits wide-pipe Merkle–Damgård construction MD2 128 bits hash MD4 128 bits hash MD5 128 bits Merkle–Damgård construction MD6 up to 512 bits Merkle tree NLFSR (it is also a keyed hash function) RadioGatún arbitrary ideal mangling function RIPEMD 128 bits hash RIPEMD-128 128 bits hash RIPEMD-160 160 bits hash RIPEMD-320 320 bits hash SHA-1 160 bits Merkle–Damgård construction SHA-224 224 bits Merkle–Damgård construction SHA-256 256 bits Merkle–Damgård construction SHA-384 384 bits Merkle–Damgård construction SHA-512 512 bits Merkle–Damgård construction SHA-3 (subset of Keccak) arbitrary sponge function Skein arbitrary Unique Block Iteration Snefru 128 or 256 bits hash Spectral Hash 512 bits wide-pipe Merkle–Damgård construction Streebog 256 or 512 bits Merkle–Damgård construction SWIFFT 512 bits hash Tiger 192 bits Merkle–Damgård construction Whirlpool 512 bits hash See also Hash function security summary Secure Hash Algorithms NIST hash function competition Key derivation functions (category) References