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A Compact S-Box Design for SMS4 Block Cipher
implementation / Composite field arithmetic SMS4 Normal Basis S-box
2012/3/26
This paper proposes a compact design of SMS4 S-box using combinational logic which is suitable for the implementation in area constraint environments like smart cards. The inversion algorithm of the p...
Differential Fault Analysis on SMS4 Using a Single Fault
fault attacks differential fault analysis block cipher
2010/2/20
Differential Fault Analysis (DFA) attack is a powerful crypt-
analytic technique that could be used to retrieve the secret key by ex-
ploiting computational errors in the encryption (decryption) pro...
Differential Cryptanalysis of SMS4 Block Cipher
Block Cipher SMS4 Differential Cryptanalysis
2010/2/20
SMS4 is a 128-bit block cipher used in the WAPI standard
for wireless networks in China. In this paper, we analyze the security of
SMS4 block cipher against di®erential cryptanalysis. Firstly, w...
Multiple Linear Cryptanalysis of Reduced-Round SMS4 Block Cipher
SMS4 Block cipher Linear characteristic
2009/6/15
SMS4 is a 32-round unbalanced Feistel block cipher with its block size and key size being
128 bits. As a fundamental block cipher used in the WAPI standard, the Chinese national standard
for WLAN, i...
SMS4 Encryption Algorithm for Wireless Networks
SMS4 Encryption Algorithm Wireless Networks
2009/6/5
SMS4 is a Chinese block cipher standard, mandated for use in protecting wireless net-
works, and issued in January 2006. The input, output, and key of SMS4 are each 128 bits.
The algorithm has 32 ro...
Linear and Differential Cryptanalysis of Reduced SMS4 Block Cipher
Block Cipher SMS4 Linear Attack
2009/6/5
SMS4 is a 128-bit block cipher with a 128-bit user key and 32
rounds, which is used in WAPI, the Chinese WLAN national standard.
In this paper, we present a linear attack and a differential attack o...
分组加密算法SMS4的14轮Square攻击
SMS4算法 平方攻击 计算复杂度
2009/5/25
为了对分组加密算法SMS4进行新的安全性分析，基于SMS4的轮结构中的活跃字变化的特点，选择1个特定的明文形式来构造1个含3个活跃字的∧集，通过观察平衡字的传播路径，在第9轮找到了1个平衡字，由此构建出1个新型的12轮区分器并对14轮SMS4进行Square攻击.研究结果表明:攻击所需的明文数据量为232，计算复杂度为296.5，这说明14轮SMS4对Square攻击是不免疫的．
分组加密算法SMS4的14轮Square攻击
SMS4算法 平方攻击 计算复杂度
2009/1/30
为了对分组加密算法SMS4进行新的安全性分析，基于SMS4的轮结构中的活跃字变化的特点，选择1个特定的明文形式来构造1个含3个活跃字的∧集，通过观察平衡字的传播路径，在第9轮找到了1个平衡字，由此构建出1个新型的12轮区分器并对14轮SMS4进行Square攻击.研究结果表明:攻击所需的明文数据量为232，计算复杂度为296.5，这说明14轮SMS4对Square攻击是不免疫的．
用不可能差分法分析17轮SMS4算法
分组密码 算法 不可能差分分析
2009/1/16
SMS4是我国在2006年公布的第一个商用分组密码算法． 通过分析SMS4每一轮输入输出对的差分的变化，首次给出一个14轮SMS4的不可能差分特性:如果输入的明文对的差分为(a， a， a， 0)，那么14轮之后的输出差分不可能为(a， a， a， 0)．利用该性质，在14轮不可能差分密码分析的基础上，前面加了两轮，后面加了一轮，提出了一种不可能差分密码分析17轮 SMS4的方法． 该方法分析17...