ShiftRows Alternatives for AES-like Ciphers and Optimal Cell Permutations for Midori and Skinny
We study possible alternatives for ShiftRows to be used as cell permutations in AES-like ciphers. As observed during the design process of the block cipher Midori, when using a …
gianira-n.-alfarano
Mind the Gap - A Closer Look at the Security of Block Ciphers against Differential Cryptanalysis
Resistance against differential cryptanalysis is an important design criteria for any modern block cipher and most designs rely on finding some upper bound on probability of single …
ralph-ankele
A brief comparison of SIMON and SIMECK,
A Brief Comparison of Simon and Simeck
Simeck is a new lightweight block cipher design based on combining the design principles of the Simon and Speck block cipher. While the design allows a smaller and more efficient …
Observations on the SIMON block cipher family
Observations on the SIMON block cipher family
In this paper we analyse the general class of functions underlying the Simon block cipher. In particular, we derive efficiently computable and easily implementable expressions for …
Practical attacks on AES-like Cryptographic Hash Functions
Differential Cryptanalysis of Keccak Variants
Differential Cryptanalysis of Keccak Variants
In October 2012, NIST has announced Keccak as the winner of the SHA-3 cryptographic hash function competition. Recently, at CT-RSA 2013, NIST brought up the idea to standardize …