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Square
General
Designers Joan Daemen, Vincent Rijmen
First published 1997
Successors AES, CRYPTON, Twofish, Serpent
Cipher detail
Key sizes 128 bits
Block sizes 128 bits
Structure substitution-permutation network
Rounds 8

In cryptography, Square (sometimes written SQUARE) is a block cipher invented by Joan Daemen and Vincent Rijmen. The design, published in 1997, is a forerunner to the Rijndael algorithm, which has been adopted as the Advanced Encryption Standard. Square was introduced together with a new form of cryptanalysis discovered by Lars Knudsen, called the "Square attack".

The structure of Square is a substitution-permutation network with eight rounds, operating on 128-bit blocks and using a 128-bit key.

Square is not patented.

References

External links


Simple English


In cryptography, Square (sometimes written SQUARE) is a block cipher invented by Joan Daemen and Vincent Rijmen. The design was published in 1997.

SQUARE is a predecessor to the Rijndael algorithm, which has been adopted in 2001 as the Advanced Encryption Standard by the U.S. government.

Square was introduced together with a new form of cryptanalysis discovered by Lars Knudsen, called the "Square attack".

The structure of Square is a substitution-permutation network with eight rounds, operating on 128-bit block size and using a 128-bit key size.

Square is not patented.

References

  • Joan Daemen, Lars Knudsen, Vincent Rijmen (1997). "The Block Cipher Square" (PDF). Fast Software Encryption (FSE) 1997, Volume 1267 of Lecture Notes in Computer Science: 149–165, Haifa, Israel: Springer-Verlag. Retrieved on 2007-02-15. 

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