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Paper 2008/513

Improved Cryptanalysis of SHAMATA-BC

Adem Atalay, Orhun Kara and Ferhat Karakoç

Abstract

We state the design flaws of the 1-round block cipher SHA\-MATA-BC, designed by Fleishmann and Gorski by using the building blocks of SHAMATA hash function. We fix the flaws and then show that the amended version of SHAMATA-BC is much weaker. We believe that there is no connection between security level of SHAMATA as a hash function and that of SHAMATA-BC as a block cipher.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
Hash functionSHAMATASHAMATA-BCSHA-3
Contact author(s)
orhun @ uekae tubitak gov tr
History
2008-12-09: received
Short URL
https://ia.cr/2008/513
License
Creative Commons Attribution
CC BY
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