Comparison of cryptographic hash functions: Difference between revisions

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{{short description|Tables comparing general and technical information for common hashes}}
The following tables compare general and technical information for a number of [[cryptographic hash function]]sfunctions.<ref> See the individual functions' articles for further information. This article is not all-inclusive or necessarily up-to-date.</ref> An overview of hash function security/[[cryptanalysis]] can be found at [[hash function security summary]].

== General information ==

Basic general information about the [[cryptographic hash function]]s: year, designer, references, etc.

{| class="wikitable sortable" style="text-align: center"

|-

! Function

! Year

! Year<ref group="gi">It refers to the first official description of the algorithm, not designed date.</ref>

! Designer

! Derived from

! Reference

|-

| [[BLAKE (hash function)|BLAKE]]

| 2008

| Jean-Philippe Aumasson<br>Luca Henzen<br>Willi Meier<br>Raphael C.-W. Phan

| [[ChaCha20]]

| [https://131002.net/blake/ Website]<br>[https://web.archive.org/web/20201001184633/http://131002.net/blake/blake.pdf Specification]

|-

| [[BLAKE2]]

| 2012

| Jean-Philippe Aumasson<br>Samuel Neves<br>[[Zooko Wilcox-O'Hearn]]<br>Christian Winnerlein

| [[BLAKE (hash function)|BLAKE]]

| [https://blake2.net/ Website]<br>[https://blake2.net/blake2.pdf Specification]<br>{{IETF RFC|7693}}

|-

| [[BLAKE3]]

| 2020

| Jack O'Connor<br>Jean-Philippe Aumasson<br>Samuel Neves<br>[[Zooko Wilcox-O'Hearn]]

| [[BLAKE2]]

| [https://github.com/BLAKE3-team/BLAKE3 Website]<br>[https://github.com/BLAKE3-team/BLAKE3-specs/blob/master/blake3.pdf Specification]

|-

| [[GOST (hash function)|GOST R 34.11-94]]

| 1994

| [[FAPSI]] and VNIIstandart

| [[GOST (block cipher)|GOST 28147-89]]

| {{IETF RFC|5831}}

|-

| [[HAVAL]]

| 1992

| [[Yuliang Zheng]]<br />[[Josef Pieprzyk]]<br />[[Jennifer Seberry]]

|

| [https://web.archive.org/web/20150111210116/http://labs.calyptix.com/haval.php Website]<br>[https://web.archive.org/web/20140411060613/http://labs.calyptix.com/files/haval-paper.pdf Specification]

|-

| [[KangarooTwelve]]

| 2016

| Guido Bertoni<br>[[Joan Daemen]]<br>Michaël Peeters<br>[[Gilles Van Assche]]

| [[Keccak]]

| [https://keccak.team/kangarootwelve.html Website]<br>[https://keccak.team/files/KangarooTwelve.pdf Specification]

|-

| [[MD2 (cryptographyhash function)|MD2]]

| 1989

| rowspan="4" | [[Ronald Rivest]]

|

| RFC{{IETF RFC|1319}}

|-

| [[MD4]]

| 1990

|

| RFC{{IETF RFC|1320}}

|-

| [[MD5]]

| 1992

| [[MD4]]<br />RFC 1321 page 1

| RFC{{IETF RFC|1321}}

|-

| [[MD6]]

| 2008

|

| [httphttps://groups.csail.mit.edu/cis/md6/submitted Website]<br>[https://groups.csail.mit.edu/cis/md6/docs/2009-200804-1015-27/Supporting_Documentation/md6_reportmd6-report.pdf md6_report.pdfSpecification]

|-

| [[RIPEMD]]

| 19901992

| The RIPE Consortium<ref>{{cite conference|first1=Hans|last1=Dobbertin|author-link1=Hans Dobbertin|first2=Antoon|last2=Bosselaers|first3=Bart|last3=Preneel|author-link3=Bart Preneel|title=RIPEMD-160: A strengthened version of RIPEMD|conference=Fast Software Encryption. Third International Workshop|___location=Cambridge, UK|date=21–23 February 1996|pages=71–82|url=https://homes.esat.kuleuven.be/~bosselae/ripemd160/pdf/AB-9601/AB-9601.pdf|doi=10.1007/3-540-60865-6_44|doi-access=free}}</ref>

| The RIPE Consortium [http://homes.esat.kuleuven.be/~bosselae/ripemd160.html#What]

| [[MD4]]

|

|-

| [[RIPEMD-128]]<br />[[RIPEMD-256]]<br />[[RIPEMD-160]]<br />[[RIPEMD-320]]

| 1996

| [[Hans Dobbertin]]<br />[[Antoon Bosselaers]]<br />[[Bart Preneel]]

| [[RIPEMD]]

| [[RIPEMD]][http://homes.esat.kuleuven.be/~bosselae/ripemd160.html#What]

| [httphttps://homes.esat.kuleuven.be/~bosselae/ripemd160.html Website]<br>[https://homes.esat.kuleuven.be/~bosselae/ripemd160/pdf/AB-9601/AB-9601.pdf Specification]

|-

| [[SHA-0]]

Line 54 ⟶ 86:

| rowspan="4"|[[National Security Agency|NSA]]

|

| [https://web.archive.org/web/20090130063617/http://w2.eff.org/Privacy/Digital_signature/?f=fips_sha_shs.info.txt SHA-0]

|-

| [[SHA-1]]

| 1995

| [[SHA-0]]

| rowspan="3" | [httphttps://csrcnvlpubs.nist.gov/publicationsnistpubs/fipsFIPS/fips180-4/fips-NIST.FIPS.180-4.pdf Specification]

|-

| [[SHA-256]]<br />[[SHA-512384]]<br />[[SHA-384512]]

| 2002

| rowspan="2"|

Line 68 ⟶ 100:

| 2004

|-

| [[SHA-3]] (Keccak)

| [[GOST (hash function)|GOST R 34.11-94]]

| 19942008

| Guido Bertoni<br>[[Joan Daemen]]<br>Michaël Peeters<br>[[Gilles Van Assche]]

| [[FAPSI]] and VNIIstandart

| [[RadioGatún]]

| [[GOST (block cipher)|GOST 28147-89]]

| [https://keccak.team/ Website]<br>[https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf Specification]

| RFC 5831, RFC 4357

|-

| [[Streebog]]

| 2012

| [[Federal Security Service|FSB]], InfoTeCS JSC

|

| {{IETF RFC|6986}}

|-

| [[Tiger (cryptographyhash function)|Tiger]]

| 1995

| [[Ross J. Anderson|Ross Anderson]]<br />[[Eli Biham]]

|

| [httphttps://www.cs.technion.ac.il/~biham/Reports/Tiger/ Website]<br>[https://www.cs.technion.ac.il/~biham/Reports/Tiger/tiger/node3.html Specification]

|-

| [[Whirlpool (cryptographyhash function)|Whirlpool]]

| 2004

| [[Vincent Rijmen]]<br />[[Paulo S. L. M. Barreto|Paulo Barreto]]

|

| [https://web.archive.org/web/20171129084214/http://www.larc.usp.br/~pbarreto/WhirlpoolPage.html Website]

|-

| [[SHA-3]] (Keccak)

| 2008<ref>{{Citation |title = Keccak sponge function family main document |url = http://keccak.noekeon.org/Keccak-main-1.0.pdf |first1 = Guido |last1 = Bertoni |first2 = Joan |last2 = Daemen |first3 = Michael |last3 = Peeters |first4 = Gilles Van |last4 = Assche |version = 1.0 |date = Oct 2008 |accessdate = 2013-07-30 }}</ref>

| [[Guido Bertoni]]<br />[[Joan Daemen]]<br />[[Michaël Peeters]]<br />[[Gilles Van Assche]]

|

| [http://keccak.noekeon.org Website]

|}

=== Notes ===

<references group="gi" />

== Parameters ==

{| class="wikitable sortable" style="text-align: center"

|-

! data-sort-type=text | Algorithm

! data-sort-type=number | Output size (bits)

! data-sort-type=number | Internal state size{{notetag|The ''internal state'' here means the "internal hash sum" after each compression of a data block. Most hash algorithms also internally use some additional variables such as length of the data compressed so far since that is needed for the length padding in the end. See the [[Merkle–Damgård construction]] for details.}}

! data-sort-type=number | Block size

! data-sort-type=number | Length size

! data-sort-type=number | Word size

! data-sort-type=number | [[Round (cryptography)|Rounds]]

|-

| '''[[BLAKE2b]]'''

| 512

| 512

| 1024

| 128{{notetag|The size of BLAKE2b's message length counter is 128-bit, but it counts message length in bytes, not in bits like the other hash functions in the comparison. It can hence handle eight times longer messages than a 128-bit length size would suggest (one byte equaling eight bits). A length size of 131-bit is the comparable length size (<math>8 \times 2^{128} = 2^{131}</math>).}}

| 64

| 12

|-

| '''[[BLAKE2s]]'''

| 256

| 256

| 512

| 64{{notetag|The size of BLAKE2s's message length counter is 64-bit, but it counts message length in bytes, not in bits like the other hash functions in the comparison. It can hence handle eight times longer messages than a 64-bit length size would suggest (one byte equaling eight bits). A length size of 67-bit is the comparable length size (<math>8 \times 2^{64} = 2^{67}</math>).}}

| 32

| 10

|-

| '''[[BLAKE3]]'''

| Unlimited{{notetag|It's technically 2⁶⁴ bytes which equals 2⁶⁷ bits<ref>https://github.com/BLAKE3-team/BLAKE3-specs/blob/master/blake3.pdf page 8</ref>}}

| 256{{notetag|The full BLAKE3 incremental state includes a chaining value stack up to 1728 bytes in size. However, the compression function itself does not access this stack. A smaller stack can also be used if the maximum input length is restricted.}}

| 512

| 64

| 32

| 7

|-

! Algorithm

! Output size (bits)

! Internal state size<ref group="p">The ''internal state'' here means the "internal hash sum" after each compression of a data block. Most hash algorithms also internally use some additional variables such as length of the data compressed so far since that is needed for the length padding in the end. See the [[Merkle-Damgård construction]] for details.</ref>

! Block size

! Length size

! Word size

! Rounds

|- style="text-align:center;"

| '''[[GOST (hash function)|GOST]]'''

| 256

Line 116 ⟶ 168:

| 32

| 32

|-

|- style="text-align:center;"

| '''[[HAVAL]]'''

| 256/224/192/160/128

| 256

| 1,0241024

| 64

| 32

| 3/4/5

|-

| '''[[MD2 (hash function)|MD2]]'''

|- style="text-align:center;"

| '''[[MD2 (cryptography)|MD2]]'''

| 128

| 384

| 128

| -–

| 32

| 86418

|-

|- style="text-align:center;"

| '''[[MD4]]'''

| 128

Line 143 ⟶ 192:

| 32

| 3

|-

|- style="text-align:center;"

| '''[[MD5]]'''

| 128

Line 152 ⟶ 200:

| 32

| 64

|-

|- style="text-align:center;"

| '''[[PANAMA]]'''

| 256

| 8,7368736

| 256

| -–

| 32

| -–

|-

|- style="text-align:center;"

| '''[[RadioGatún]]'''

| Unlimited{{notetag|RadioGatún is an [[extendable-output function]] which means it has an output of unlimited size. The official test vectors are 256-bit hashes. RadioGatún claims to have the security level of a cryptographic [[sponge function]] 19 words in size, which means the 32-bit version has the security of a 304-bit hash when looking at [[preimage attack]]s, but the security of a 608-bit hash when looking at [[collision attack]]s. The 64-bit version, likewise, has the security of a 608-bit or 1216-bit hash. For the purposes of determining how vulnerable RadioGatún is to [[length extension attack]]s, only two words of its 58-word state are output between hash compression operations.}}

| Up to 608/1,216 (19 words)

| 58 words

| 19 words{{notetag|RadioGatún is not a Merkle–Damgård construction and, as such, does not have a block size. Its belt is 39 words in size; its mill, which is the closest thing RadioGatún has to a "block", is 19 words in size.}}

| 3 words

| -–

| 1–64{{notetag|Only the 32-bit and 64-bit versions of RadioGatún have official test vectors}}

| 1–64

| 18{{notetag|The 18 blank rounds are only applied once in RadioGatún, between the end of the input mapping stage and before the generation of output bits}}

| -

|-

|- style="text-align:center;"

| '''[[RIPEMD]]'''

| 128

Line 179 ⟶ 224:

| 32

| 48

|-

| '''[[RIPEMD]]-128, -256'''

|- style="text-align:center;"

| '''[[RIPEMD|RIPEMD-128/256]]'''

| 128/256

| 128/256

Line 188 ⟶ 232:

| 32

| 64

|-

| '''[[RIPEMD]]-160'''

|- style="text-align:center;"

| '''[[RIPEMD|RIPEMD-160]]'''

| 160

| 160

Line 197 ⟶ 240:

| 32

| 80

|-

| '''[[RIPEMD]]-320'''

|- style="text-align:center;"

| '''[[RIPEMD|RIPEMD-320]]'''

| 320

| 320

Line 206 ⟶ 248:

| 32

| 80

|-

| '''[[SHA-0]]'''

|- style="text-align:center;"

| '''[[SHA-1|SHA-0]]'''

| 160

| 160

Line 215 ⟶ 256:

| 32

| 80

|-

|- style="text-align:center;"

| '''[[SHA-1]]'''

| 160

Line 224 ⟶ 264:

| 32

| 80

|-

| '''[[SHA-2|SHA-224, -256]]'''

|- style="text-align:center;"

| '''[[SHA-2|SHA-224, SHA-256]]'''

| 224/256

| 256

Line 233 ⟶ 272:

| 32

| 64

|-

| '''[[SHA-2|SHA-384, -512, -512/224, -512/256]]'''

|- style="text-align:center;"

| '''[[SHA-2|SHA-384, SHA-512, SHA-512/224, SHA-512/256]]'''

| 384/512/224/256

| 512

| 1,0241024

| 128

| 64

| 80

|-

|- style="text-align:center;"

| '''[[SHA-3]]'''

| 224/256/384/512<ref group="p">{{notetag|Although the underlying algorithm [[Keccak]] has arbitrary hash lengths, the NIST specified 224, 256, 384 and 512 bits output as valid modes for SHA-3.</ref>}}

| 1600

| 1600 - 2*bits

| –{{notetag|Implementation dependent; as per section 7, second paragraph from the bottom of page 22, of FIPS PUB 202.}}

| -

| 64

| 24

|-

| '''[[SHA3]]'''-224

|- style="text-align:center;"

| '''[[SHA-3|SHA3]]'''-224

| 224

| 1600

| 1152

| -–

| 64

| 24

|-

| '''[[SHA3]]'''-256

|- style="text-align:center;"

| '''[[SHA-3|SHA3]]'''-256

| 256

| 1600

| 1088

| -–

| 64

| 24

|-

| '''[[SHA3]]'''-384

|- style="text-align:center;"

| '''[[SHA-3|SHA3]]'''-384

| 384

| 1600

| 832

| -–

| 64

| 24

|-

| '''[[SHA3]]'''-512

|- style="text-align:center;"

| '''[[SHA-3|SHA3]]'''-512

| 512

| 1600

| 576

| -–

| 64

| 24

|-

| '''[[Tiger (hash function)|Tiger(2)-192/160/128]]'''

|- style="text-align:center;"

| '''[[Tiger (cryptography)|Tiger(2)-192/160/128]]'''

| 192/160/128

| 192

Line 296 ⟶ 328:

| 64

| 24

|-

| '''[[Whirlpool (hash function)|Whirlpool]]'''

|- style="text-align:center;"

| '''[[WHIRLPOOL]]'''

| 512

| 512

Line 305 ⟶ 336:

| 8

| 10

|}

===Notes===

{{notefoot}}

<references group="p" />

== Compression function ==

The following tables compare technical information for [[One-way compression function|compression function]]s of [[cryptographic hash function]]s. The information comes from the specifications, please refer to them for more details.

{| class="wikitable" style="text-align: center"

|-

! rowspan="2" | Function

! colspan="6" | Size ([[bit]]s)<ref group="cf">{{notetag|The omitted multiplicands are word sizes.</ref>}}

! rowspan="2" | Words × <br />Passes = <br />Rounds<ref group="cf">{{notetag|Some authors interchange passes and rounds.</ref>}}

! rowspan="2" | Operations<ref group="cf">{{notetag|A: addition, subtraction; B: [[bitwise operation]]; L: [[lookup table]]; S: [[Bitwise operations#Bit shifts|shift, rotation]].</ref>}}

! rowspan="2" | [[Endianness|Endian]]<ref group="cf">{{notetag|It refers to ''byte'' endianness only. If the operations consist of bitwise operations and lookup tables only, the endianness is irrelevant.</ref>}}

! rowspan="2" | Specification

|-

! [[Word (computer architecture)|Word]]

! [[Cryptographic hash function|Digest]]

! [[Merkle–Damgård construction|Chaining <br />values]]<ref group="cf">{{notetag|The size of message digest equals to the size of chaining values usually. In truncated versions of certain cryptographic hash functions such as SHA-384, the former is less than the latter.</ref>}}

! Computation<br />values<ref group="cf">{{notetag|The size of chaining values equals to the size of computation values usually. In certain cryptographic hash functions such as RIPEMD-160, the former is less than the latter because RIPEMD-160 use two sets of parallel computaioncomputation values and then combine into a single set of chaining values.</ref>}}

! [[Merkle–Damgård construction|Block]]

! [[Merkle–Damgård construction#Security characteristics|Length]]<br /><ref group="cf">{{notetag|The maximum input size {{=}} 2^{length size} − 1 [[bit]]s. For example, the maximum input size of SHA-1 {{=}} 2⁶⁴ − 1 bits.</ref>}}

|-

| [[GOST (hash function)|GOST R 34.11-94]]

| [[HAVAL|HAVAL-3-128]]

| 32

| colspan="3" | {{nowrap|×8 {{=}} 256}}

| {{nowrap|×8 {{=}} 256}}

| 32

| 4

| A B L S

| Little

|-

| [[HAVAL|HAVAL-3-128]]

| rowspan="15" | 32

| {{nowrap|×4 {{=}} 128}}

| colspan="2" rowspan="15" | {{nowrap|×8 {{=}} 256}}

| rowspan="15" | {{nowrap|×32 {{=}} 1,024}}

| rowspan="15" | 64

| rowspan="5" | {{nowrap|32 × 3 {{=}} 96}}

| rowspan="15" | A B S

| rowspan="15" | Little

| rowspan="15" | [http://labs.calyptix.com/files/haval-paper.pdf HAVAL]

|-

| [[HAVAL|HAVAL-3-160]]

Line 384 ⟶ 422:

| {{nowrap|×8 {{=}} 256}}

|-

| [[MD2 (cryptographyhash function)|MD2]]

| 8

| {{nowrap|×16 {{=}} 128}}

Line 394 ⟶ 432:

| B

| N/A

| RFC 1319

|-

| [[MD4]]

Line 401 ⟶ 438:

| rowspan="2" | {{nowrap|×16 {{=}} 512}}

| rowspan="2" | 64

| {{nowrap|16 × 3 {{=}} 48}}

| rowspan="2" | A B S

| rowspan="2" | Little

| RFC 1320

|-

| [[MD5]]

| {{nowrap|16 × 4 {{=}} 64}}

| RFC 1321

|-

| [[RIPEMD]]

Line 419 ⟶ 454:

| rowspan="5" | A B S

| rowspan="5" | Little

|

|-

| [[RIPEMD-128]]

| rowspan="2" | {{nowrap|16 × 4 {{=}} 64}}

| rowspan="4" | [http://www.webcitation.org/6aO95FVW7 RIPEMD-160]<ref>{{Citation |title = RIPEMD-160: A Strengthened Version of RIPEMD |url = http://homes.esat.kuleuven.be/~cosicart/pdf/AB-9601/AB-9601.pdf |first1 = Hans |last1 = Dobbertin |first2 = Antoon |last2 = Bosselaers |first3 = Bart |last3 = Preneel |date = 1996-04-18 |accessdate = 2010-02-16 }}</ref>

|-

| [[RIPEMD-256]]

Line 446 ⟶ 479:

|-

| [[SHA-1]]

| rowspan="5" | [http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf FIPS 180--3]

|-

| [[SHA-256]]

Line 467 ⟶ 499:

| {{nowrap|×6 {{=}} 384}}

|-

| [[GOSTTiger (hash function)|GOST R 34.11Tiger-94192]]

| 32

| colspan="3" | {{nowrap|×8 {{=}} 256}}

| {{nowrap|×8 {{=}} 256}}

| 32

| 4

| A B L S

| Little

| RFC 5831

|-

| [[Tiger (cryptography)|Tiger-192]]

| rowspan="3" | 64

| {{nowrap|×3 {{=}} 192}}

Line 486 ⟶ 508:

| rowspan="3" | A B L S

| rowspan="3" | Not Specified

| rowspan="3" | [http://www.cs.technion.ac.il/~biham/Reports/Tiger/tiger/node3.html#SECTION00030000000000000000 Tiger]

|-

| [[Tiger (cryptographyhash function)|Tiger-160]]

| ×2.5=160

|-

| [[Tiger (cryptographyhash function)|Tiger-128]]

| {{nowrap|×2 {{=}} 128}}

|-

! rowspan="2" | Function

! [[Word (computer architecture)|Word]]

! [[Cryptographic hash function|Digest]]

! [[Merkle–Damgård construction|Chaining<br>values]]

! Computation<br>values

! [[Merkle–Damgård construction|Block]]

! [[Merkle–Damgård construction#Security characteristics|Length]]

! rowspan="2" | Words ×<br>Passes =<br>Rounds

! rowspan="2" | Operations

! rowspan="2" | [[Endianness|Endian]]

|-

! colspan="6" | Size ([[bit]]s)

|}

=== Notes ===

{{notefoot}}

<references group="cf" />

== See also ==

Line 507 ⟶ 541:

== External links ==

* [https://bench.cr.yp.to/results-hash.html ECRYPT Benchmarking of Cryptographic Hashes] – measurements of hash function speed on various platforms

# [http://www.larc.usp.br/~pbarreto/hflounge.html The Hash Function Lounge] - A list of hash functions and known attacks, by Paulo Barreto

#* [httphttps://ehash.iaik.tugraz.at/wiki/The_eHash_Main_Page The eHashECRYPT MainHash PageFunction Website] -– A wiki for cryptographic hash functions

#* [httphttps://csrc.nist.gov/groups/STprojects/hash-functions/sha-3/index.html-project TheSHA-3 NIST Hash Competition Main PageProject] -– TheInformation competition to becomeabout SHA-3 competition

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