Editing Tiger (hash function) (section)

{{Short description|Cryptographic hash function}}
{{Infobox cryptographic hash function
| name           = Tiger
| image          =
| caption        =
<!-- General -->
| designers      = [[Ross J. Anderson|Ross Anderson]] and [[Eli Biham]]
| publish date   = 1996
| series         =
| derived from   =
| derived to     =
| related to     =
| certification  =
<!-- Detail -->
| digest size    = 192, 128, 160
| structure      =
| rounds         = 24
| cryptanalysis  =
}}
In [[cryptography]], '''Tiger'''<ref>{{cite web
| url=https://www.cs.technion.ac.il/~biham/Reports/Tiger/tiger/tiger.html
| title=Tiger: A Fast New Hash Function
| author=Ross Anderson and Eli Biham
| work=Fast Software Encryption 3
| location=[[Cambridge, UK|Cambridge]]
| date=1996-02-08
| access-date=2017-03-03}}</ref> is a [[cryptographic hash function]] designed by [[Ross J. Anderson|Ross Anderson]] and [[Eli Biham]] in 1995 for efficiency on [[64-bit computing|64-bit]] platforms. The size of a Tiger hash value is 192 bits. Truncated versions (known as Tiger/128 and Tiger/160) can be used for compatibility with protocols assuming a particular hash size. Unlike the [[SHA-2]] family, no distinguishing initialization values are defined; they are simply prefixes of the full Tiger/192 hash value.

'''Tiger2'''<ref>{{cite web
| url=https://www.cs.technion.ac.il/~biham/Reports/Tiger/tiger2-test-vectors-nessie-format.dat
| title=Tiger2 Test Vectors
| work=Project [[NESSIE]]
| date=2005-02-25
| access-date=2017-03-03}}</ref> is a variant where the message is padded by first appending a byte with the hexadecimal value of 0x80 as in [[MD4]], [[MD5]] and [[Secure Hash Algorithm|SHA]], rather than with the hexadecimal value of 0x01 as in the case of Tiger. The two variants are otherwise identical.