Square (cipher): Difference between revisions
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'''Square''' is a [[block cipher]] designed by [[Joan Daemen]] and [[Vincent Rijmen]], who later designed [[Rijndael]], the winning candidate in the [[AES competition]]. Like AES, Square is a [[Block cipher#SP networks|substitution-permutation network]] operating on 128-bit blocks. It gets it name from the fact that, like AES, for some operations it treats the block as a four-by-four square array of bytes. It uses eight rounds and a 128-bit key. | '''Square''' is a [[block cipher]] designed by [[Joan Daemen]] and [[Vincent Rijmen]], who later designed [[Rijndael]], the winning candidate in the [[AES competition]]. Like AES, Square is a [[Block cipher#SP networks|substitution-permutation network]] operating on 128-bit blocks. It gets it name from the fact that, like AES, for some operations it treats the block as a four-by-four square array of bytes. It uses eight rounds and a 128-bit key. | ||
[[Lars Knudsen]] invented a new attack, called [[integral cryptanalysis]] or the | [[Lars Knudsen]] invented a new attack, called [[integral cryptanalysis]] or the '''square attack''', to break Square. It was published at the same time as the cipher itself. | ||
Revision as of 03:51, 2 March 2010
Square is a block cipher designed by Joan Daemen and Vincent Rijmen, who later designed Rijndael, the winning candidate in the AES competition. Like AES, Square is a substitution-permutation network operating on 128-bit blocks. It gets it name from the fact that, like AES, for some operations it treats the block as a four-by-four square array of bytes. It uses eight rounds and a 128-bit key.
Lars Knudsen invented a new attack, called integral cryptanalysis or the square attack, to break Square. It was published at the same time as the cipher itself.