1 citations · 1 across the 9 of their papers we have counts for
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Oracle-Based Multistep Strategy for Solving Polynomial Systems Over Finite Fields and Algebraic Cryptanalysis of the Aradi Cipher
Roberto La Scala, Sharwan Kumar Tiwari
The multistep solving strategy consists in a divide-and-conquer approach: when a multivariate polynomial system is computationally infeasible to solve directly, one variable is ass…
An algebraic attack to the Bluetooth stream cipher E0
Roberto La Scala, Sergio Polese, Sharwan K. Tiwari +1
In this paper we study the security of the Bluetooth stream cipher E0 from the viewpoint it is a "difference stream cipher", that is, it is defined by a system of explicit differen…
INRU: A Quasigroup Based Lightweight Block Cipher
Sharwan K. Tiwari, Ambrish Awasthi, Sucheta Chkrabarti +1
In this paper, we propose a quasigroup based block cipher design. The round functions of the encryption and decryption algorithms use quasigroup based string transformations. We sh…
Stream/block ciphers, difference equations and algebraic attacks
Roberto La Scala, Sharwan K. Tiwari
In this paper we model a class of stream and block ciphers as systems of (ordinary) explicit difference equations over a finite field. We call this class "difference ciphers" and w…