Volume 15 (2023)
Volume 14 (2022)
Volume 13 (2021)
Volume 12 (2020)
Volume 11 (2019)
Volume 10 (2018)
Volume 9 (2017)
Volume 8 (2016)
Volume 7 (2015)
Volume 6 (2014)
Volume 5 (2013)
Volume 4 (2012)
Volume 3 (2011)
Volume 2 (2010)
Volume 1 (2009)
4n × 4n Diffusion Layers Based on Multiple 4 × 4 MDS Matrices

Mahdi Sajadieh; Arash Mirzaei

Volume 15, Issue 1 , January 2023, , Pages 111-124


  In terms of security, MDS matrices are one of the best choices for diffusion layer of block ciphers. However, as these matrices grow in size, their software implementation becomes a challenge. In this paper, to benefit from the properties of MDS matrices and avoid the mentioned challenge, we use 4*4 ...  Read More

Lightweight Cryptographic S-Boxes Based on Efficient Hardware Structures for Block Ciphers

Bahram Rashidi

Volume 15, Issue 1 , January 2023, , Pages 137-151


  In this paper, we present four low-cost substitution boxes (S-boxes) including two 4-bit S-boxes called S1 and S2 and two 8-bit S-boxes called SB1 and SB2, which are suitable for the development of lightweight block ciphers. The 8-bit SB1 S-box is constructed based on four 4-bit S-boxes, multiplication ...  Read More

Impossible Differential Cryptanalysis of Reduced-Round Midori64 Block Cipher (Extended Version)

A. Rezaei Shahmirzdi; A. Azimi; M. Salmasizadeh; J. Mohajeri; M. R. Aref

Volume 10, Issue 1 , January 2018, , Pages 3-13


  Impossible differential attack is a well-known mean to examine robustness of block ciphers. Using impossible differential cryptanalysis, we analyze security of a family of lightweight block ciphers, named Midori, that are designed considering low energy consumption. Midori state size can be ...  Read More