Results 131 to 140 of about 209 (162)

Integral and Impossible Differential Cryptanalysis of RC6

2018
The block cipher RC6 is one of the finalists of the five candidates of AES for its security, simplicity and easy soft-hardware implementation. In view of its importance, the resistance of RC6 against integral cryptanalysis and impossible differential cryptanalysis is evaluated in this paper.
Hongguo Zhu, Xin Hai, Jiuchuan Lin
openaire   +1 more source

Impossible Differential Cryptanalysis on Tweaked E2

2012
E2, a 128-bit block cipher, is an AES candidate designed and submitted by NTT corporation. It employs a Feistel structure as global structure and 2-layer Substitution-Permutation Network structure in round function. The conservative structure makes E2 immune to kinds of current cryptanalysis.
Yuechuan Wei, Xiaoyuan Yang 0002, Chao Li, Weidong Du   +3 more
openaire   +1 more source

Impossible Differential Cryptanalysis of Reduced-Round SKINNY

Lecture Notes in Computer Science, 2017
SKINNY is a new lightweight tweakable block cipher family proposed by Beierle et al. at CRYPTO 2016. SKINNY has 6 main variants where SKINNY-n-t is a block cipher that operates on n-bit blocks using t-bit tweakey (key and tweak) where \(n=64\) or 128 and \(t=n\), 2n, or 3n. In this paper, we present impossible differential attacks against reduced-round
Amr Youssef, Tolba Mohamed, Mohamed Tolba   +2 more
exaly   +3 more sources

Impossible Differential Cryptanalysis on Deoxys-BC-256.

IACR Cryptol. ePrint Arch., 2018
Deoxys is a final-round candidate of the CAESAR competition. Deoxys is built upon an internal tweakable block cipher Deoxys-BC, where in addition to the plaintext and key, it takes an extra non-secret input called a tweak. This paper presents the first impossible differential cryptanalysis of Deoxys-BC-256 which is used in Deoxys as an internal ...
Farokhlagha Moazami, Alireza Mehrdad, Hadi Soleimany   +2 more
openaire   +2 more sources

Improved Impossible Differential Cryptanalysis of Rijndael and Crypton

2002
Impossible differential attacks against Rijndael and Crypton have been proposed up to 5-round. In this paper we expand the impossible differential attacks to 6-round. Although we use the same 4-round impossible differential as in five round attacks, we put this impossible differential in the middle of 6-round. That is, we will consider one round before
Cheon, JH Jung Hee Cheon, Kim, M MunJu Kim, Lee, JY Jung-Yeun Lee, Kim, K Kim, Kwangjo, Kang, S SungWoo Kang   +4 more
openaire   +1 more source

Improved impossible differential and biclique cryptanalysis of HIGHT

International Journal of Communication Systems, 2017
SummaryHIGHT is a lightweight block cipher introduced in CHES 2006 by Hong et al as a block cipher suitable for low‐resource applications. In this paper, we propose improved impossible differential and biclique attacks on HIGHT block cipher both exploiting the permutation‐based property of the cipher's key schedule algorithm as well as its low ...
Seyyed Arash Azimi, Siavash Ahmadi, Zahra Ahmadian, Javad Mohajeri, Mohammad Reza Aref   +4 more
openaire   +1 more source

Impossible Differential Cryptanalysis for Block Cipher Structures

2003
Impossible Differential Cryptanalysis(IDC) [4] uses impossible differential characteristics to retrieve a subkey material for the first or the last several rounds of block ciphers. Thus, the security of a block cipher against IDC can be evaluated by impossible differential characteristics. In this paper, we study impossible differential characteristics
Jongsung Kim, Seokhie Hong, Jaechul Sung, Sangjin Lee, Jongin Lim, Soohak Sung   +5 more
openaire   +1 more source

Cryptanalysis of Midori128 Using Impossible Differential Techniques

2016
The Midori family of light weight block cipher is presented in ASIACRYPT2015. It is uses a SPN structure and has two versions: Midori64 and Midori128. In this paper we use a 6-round impossible differential path and present 10-round impossible differential attack on Midori128. We exploit the properties of S-boxes to aid our attack.
Zhan Chen, Huaifeng Chen, Xiaoyun Wang 0001   +2 more
openaire   +1 more source

Impossible Differential-Algebraic Cryptanalysis of Serpent

2009 International Conference on Multimedia Information Networking and Security, 2009
Serpent is an SP Network block cipher submitted to the AES competition and chosen as one of its five finalists. The security of Serpent is widely acknowledged, especially as the best known attack so far is a differential-linear attack on only 11 rounds out of the 32 rounds of the cipher.
Zhihua Hu, Zhongping Qin, Haiqing Han
openaire   +1 more source

Improved Impossible Differential Cryptanalysis of ARIA

2008 International Conference on Information Security and Assurance (isa 2008), 2008
Impossible differential cryptanalysis is a method recovering secret key by getting rid of the keys that satisfy impossible differential relations. This cryptanalysis has been used to attack AES and many good results were gotten. For the new block cipher ARIA is similar to AES in structure, it is necessary to research its security against impossible ...
Shenhua Li, Chunyan Song
openaire   +1 more source