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UES (cipher)

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Title: UES (cipher)  
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UES (cipher)

UES
General
Designers Helena Handschuh, Serge Vaudenay
First published 1999
Derived from DEAL, Triple DES
Cipher detail
Key sizes 128, 192, or 256 bits
Block sizes 128 bits
Structure Feistel network
Rounds 48 DES-equivalent rounds

In cryptography, UES (Universal Encryption Standard) is a block cipher designed in 1999 by Helena Handschuh and Serge Vaudenay. They proposed it as a transitional step, to prepare for the completion of the AES process.

UES was designed with the same interface as AES: a block size of 128 bits and key size of 128, 192, or 256 bits. It consists of two parallel Triple DES encryptions on the halves of the block, with key whitening and key-dependent swapping of bits between the halves. The key schedule is taken from DEAL.

References

  • Handschuh, Vaudenay (9 August 1999). "A Universal Encryption Standard" ( 


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