Improved Cryptanalysis of SHAMATA-BC

نویسندگان

  • Adem Atalay
  • Orhun Kara
  • Ferhat Karakoç
چکیده

We state the design flaws of the 1-round block cipher SHAMATA-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.

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عنوان ژورنال:
  • IACR Cryptology ePrint Archive

دوره 2008  شماره 

صفحات  -

تاریخ انتشار 2008