SHARK: Difference between revisions
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Five rounds of a modified version of SHARK can be broken using an [[interpolation attack]] (Jakobsen and Knudsen, 1997). |
Five rounds of a modified version of SHARK can be broken using an [[interpolation attack]] (Jakobsen and Knudsen, 1997). |
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==See also== |
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rwarr sharks are hot, they turn me on! :D |
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* [[KHAZAD]] |
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== Headline text ==[[Image:Example.jpg]]--[[User:213.42.21.75|213.42.21.75]] 18:18, 24 May 2007 (UTC) |
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* [[Square (cipher)|Square]] |
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Image:Example.jpg|Caption1 |
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</gallery><!-- Comment --><small>Small Text</small> |
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==References== |
==References== |
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Revision as of 18:19, 24 May 2007
| General | |
|---|---|
| Designers | Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon Bosselaers, Erik De Win |
| First published | 1996 |
| Successors | KHAZAD, Rijndael |
| Cipher detail | |
| Key sizes | 128 bits |
| Block sizes | 64 bits |
| Structure | Substitution-permutation network |
| Rounds | 6 |
In cryptography, SHARK is a block cipher identified as one of the predecessors of Rijndael (the Advanced Encryption Standard).
SHARK has a 64-bit block size and a 128-bit key size. It is a six round SP-network which alternates a key mixing stage with linear and non-linear transformation layers. The linear transformation uses an MDS matrix representing a Reed-Solomon error correcting code in order to guarantee good diffusion. The nonlinear layer is composed of eight 8×8-bit S-boxes based on the function F(x) = x-1 over GF(28).
Five rounds of a modified version of SHARK can be broken using an interpolation attack (Jakobsen and Knudsen, 1997).
See also
References
- Vincent Rijmen, Joan Daemen, Bart Preneel, Anton Bosselaers, Erik De Win (1996-02). "The Cipher SHARK" (PDF/PostScript). 3rd International Workshop on Fast Software Encryption (FSE 1996). Cambridge: Springer-Verlag. pp. 99–111. Retrieved 2007-03-06.
{{cite conference}}: Check date values in:|date=(help); Unknown parameter|booktitle=ignored (|book-title=suggested) (help)CS1 maint: multiple names: authors list (link) - T. Jakobsen, L.R. Knudsen (1997-01). "The Interpolation Attack on Block Ciphers" (PDF/PostScript). 4th International Workshop on Fast Software Encryption (FSE '97). Haifa: Springer-Verlag. pp. 28–40. Retrieved 2007-01-23.
{{cite conference}}: Check date values in:|date=(help); Unknown parameter|booktitle=ignored (|book-title=suggested) (help) - Joan Daemen, Vincent Rijmen (2002). The Design of Rijndael: AES - The Advanced Encryption Standard. Springer-Verlag. ISBN 3-540-42580-2.
External links
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