«differential cryptanalysis»
۱۴۴۳ نتیجهTruncated and Multiple Differential Cryptanalysis of Reduced Round Midori128
Midori is a family of SPN-based lightweight block ciphers designed to optimize the hardware energy consumption per bit during the encryption and decryption operations. At ASIACRYPT 2015, two variants of the cipher, namely Midori128 and Midori64, which support a 128-bit secret key
Impossible Differential Cryptanalysis of Zodiac
We discuss the impossible differential cryptanalysis of the block cipher Zodiac [7]. The main design principles of Zodiac are simplicity and efficiency. However the diffusion layer in its round function is too simple to offer enough security. An impossible differential cryptanaly
Improved Differential Cryptanalysis of CAST-128 and CAST-256
CAST-128 and CAST-256 are two symmetric algorithms designed by Adams in 1990s. Both of them adopt the CAST design procedure which makes them process a number of desirable cryptographic. CAST-128 is notably used as the default cipher in some versions of GNU Privacy Guard (GPG) and
Extended SAC: A review and new algorithms of differential cryptanalysis of 4-bit s-boxes and strict avalanche criterion of BFs and 4-bit s-boxes again with a new extension to HO-SAC criterion
Bitwise-Xor of two 4 bit binary numbers or 4-bit bit patterns entitled 4-bit differences carries information in Cryptography. The Method to Analyze Cryptographic cipher algorithms or 4-bit substitution boxes with 4-bit differences is known as Differential Cryptanalysis. In this p
Another View on Cube Attack, Cube Tester, AIDA and Higher Order Differential Cryptanalysis
This paper introduces a more in-depth cryptanalysis framework for tweakable cryptosystems than Cube Attack, Cube Tester, algebraic IV differential attack (AIDA), and higher order differential cryptanalysis in Boolean algebra. Through the view of the new framework, the differences
New Insights on Impossible Differential Cryptanalysis
Since its introduction, impossible differential cryptanalysis has been applied to many ciphers. Besides the specific application of the technique in various instances, there are some very basic results which apply to generic structures of ciphers, e.g., the well known 5-round imp
Multiple Differential Cryptanalysis: Theory and Practice
Differential cryptanalysis is a well-known statistical attack on block ciphers. We present here a generalisation of this attack called multiple differential cryptanalysis. We study the data complexity, the time complexity and the success probability of such an attack and we exper
An Interactive Tool for Learning Linear and Differential Cryptanalysis of SPNs
Introduction Linear and differential cryptanalysis have existed for years as a set of tools to establish a metric of resiliency for cryptographic ciphers utilizing the substitution-permutation network (SPN) design, a category of cryptographic cipher in which many popular ciphers,
Multiple Differential Cryptanalysis: Theory and Practice (Corrected)
Differential cryptanalysis is a well-known statistical attack on block ciphers. We present here a generalisation of this attack called multiple differential cryptanalysis. We study the data complexity, the time complexity and the success probability of such an attack and we exper
Improving the Efficiency of Impossible Differential Cryptanalysis of Reduced Camellia and MISTY1
Camellia and MISTY1 are Feistel block ciphers. In this paper, we observe that, when conducting impossible differential cryptanalysis on Camellia and MISTY1, their round structures allow us to partially determine whether a candidate pair is right by guessing only a small fraction