Truncated differential cryptanalysis
{{Short description|Form of cryptanalaysis}}
In cryptography, truncated differential cryptanalysis is a generalization of differential cryptanalysis, an attack against block ciphers. Lars Knudsen developed the technique in 1994. Whereas ordinary differential cryptanalysis analyzes the full difference between two texts, the truncated variant considers differences that are only partially determined. That is, the attack makes predictions of only some of the bits instead of the full block. This technique has been applied to SAFER, IDEA, Skipjack, E2, Twofish, Camellia, CRYPTON, and even the stream cipher Salsa20.
References
- {{ cite conference
| author = Lars Knudsen
| title = Truncated and Higher Order Differentials
| conference = 2nd International Workshop on Fast Software Encryption (FSE 1994)
| pages = 196–211
| publisher = Springer-Verlag
| date = 1994
| location = Leuven
| url = http://citeseer.ist.psu.edu/knudsen95truncated.html
| format = PDF/PostScript
| access-date = 14 February 2007 }}
- {{ cite conference
| author = Lars Knudsen, Thomas Berson
| title = Truncated Differentials of SAFER
| conference = 3rd International Workshop on Fast Software Encryption (FSE 1996)
| pages = 15–26
| publisher = Springer-Verlag
| date = 1996
| location = Cambridge
| url = http://citeseer.ist.psu.edu/knudsen96truncated.html
| format = PDF/PostScript
| access-date = 27 February 2007 }}
- {{cite conference
|author = Johan Borst, Lars R. Knudsen, Vincent Rijmen
|title = Two Attacks on Reduced IDEA
|conference = Advances in Cryptology – EUROCRYPT '97
|pages = 1–13
|publisher = Springer-Verlag
|date = May 1997
|location = Konstanz
|url = http://www.esat.kuleuven.ac.be/~rijmen/downloadable/rijmen/idea.ps.gz
|format = gzipped PostScript
|access-date = 8 March 2007
|url-status = dead
|archive-url = https://web.archive.org/web/20000815233630/http://www.esat.kuleuven.ac.be/~rijmen/downloadable/rijmen/idea.ps.gz
|archive-date = 15 August 2000
}}
- {{cite conference
| author = Lars Knudsen, M.J.B. Robshaw, David Wagner
| title = Truncated Differentials and Skipjack
| conference = Advances in Cryptology – CRYPTO '99
| pages = 165–180
| publisher = Springer-Verlag
| date = 1999
| location = Santa Barbara, California
| url = http://www.windowsecurity.com/uplarticle/4/skipjack-crypto99.ps
| format = PostScript
| access-date = 27 February 2007
| archive-date = 28 September 2007
| archive-url = https://web.archive.org/web/20070928040916/http://www.windowsecurity.com/uplarticle/4/skipjack-crypto99.ps
| url-status = dead
}}
- {{cite conference
|author = M. Matsui, T. Tokita
|title = Cryptanalysis of a Reduced Version of the Block Cipher E2
|conference = 6th International Workshop on Fast Software Encryption (FSE 1999)
|pages = 71–80
|publisher = Springer-Verlag
|date = 1999
|location = Rome
|url = http://maths.utime.cn:81/Crypt1998-2003/bibs/1636/16360071.htm
|archive-url = https://web.archive.org/web/20070525205943/http://maths.utime.cn:81/Crypt1998-2003/bibs/1636/16360071.htm
|url-status = dead
|archive-date = 2007-05-25
|format = PDF
|access-date = 27 February 2007
}}
- {{ cite journal
|author1=Shiho Moriai |author2=Yiqun Lisa Yin|author2-link= Yiqun Lisa Yin | title = Cryptanalysis of Twofish (II)
| year = 2000
| url = http://www.schneier.com/twofish-analysis-shiho.pdf
| access-date = 27 February 2007 }}
- {{ cite web
| last = Crowley
| first = Paul
| author-link = Paul Crowley (cryptographer)
| title = Truncated differential cryptanalysis of five rounds of Salsa20
| year = 2006
| url = http://www.ciphergoth.org/crypto/salsa20
| access-date = 27 February 2007 }}
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Category:Cryptographic attacks
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