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The Cryptanalysis of Reduced-Round SMS4 [chapter]

Jonathan Etrog, Matt J. B. Robshaw
2009 Lecture Notes in Computer Science  
In this paper we consider the cryptanalysis of the block cipher SMS4.  ...  Here we consider the application of linear cryptanalysis to the cipher and we demonstrate a simple attack on 22 rounds of SMS4.  ...  Conclusions In this paper we have considered the cryptanalysis of the block cipher SMS4.  ... 
doi:10.1007/978-3-642-04159-4_4 fatcat:vac3lod6xveapbeah4qaps2hma

Parallelizing the Camellia and SMS4 Block Ciphers [chapter]

Huihui Yap, Khoongming Khoo, Axel Poschmann
2010 Lecture Notes in Computer Science  
O of the KASUMI block cipher.  ...  An advantage of this cipher over other n-cell generalized Feistel networks, e.g. SMS4 [11] and Camellia [5] , is that it is parallelizable for up to n rounds.  ...  of Feistel branches, while having lower area and power demands.  ... 
doi:10.1007/978-3-642-12678-9_23 fatcat:n3txevtx4ncpjhkg7zo3kzvvay

Practical security against linear cryptanalysis for SMS4-like ciphers with SP round function

Bin Zhang, ChenHui Jin
2011 Science China Information Sciences  
of round-reduced versions of SIMON SCIENCE CHINA Information Sciences 60, 039101 (2017); Abstract SMS4, a block cipher whose global structure adopts a special unbalanced Feistel scheme with SP round function  ...  In this paper, in order to evaluate the security against linear cryptanalysis, we examine the upper bound of the maximum linear characteristic probability of SMS4-like ciphers with SP round function.  ...  Description of SMS4 and SMS4-like ciphers SMS4 employs a 32-round unbalanced Feistel scheme, and both of its block size and key size are 128 bits.  ... 
doi:10.1007/s11432-011-4448-8 fatcat:bhiw3a3r7rac5lk63i4shevtta

Parallelisable variants of Camellia and SMS4 block cipher: p-Camellia and p-SMS4

Huihui Yap, ngming Khoo, Axel Poschmann
2013 International Journal of Applied Cryptography  
We propose two parallelisable variants of Camellia and SMS4 block ciphers based on the n-cell GF-NLFSR.  ...  An advantage of this cipher over other n-cell generalised Feistel networks, e.g., SMS4 (Diffe and Ledin, 2008) and Camellia (Aokiet al., 2001), is that it is parallelisable for up to n rounds.  ...  In summary, we have shown that p-SMS4 offers sufficient security against differential cryptanalysis. Denote the maximum linear probability of p-SMS4 reduced to 28-round by q.  ... 
doi:10.1504/ijact.2013.053432 fatcat:ialtppyuwfawje2ux4z5htaiom

Revised cryptanalysis for SMS4

Lei Cheng, Bing Sun, Chao Li
2017 Science China Information Sciences  
SMS4 is released by the Chinese government as part of the WAPI standard for the wireless networks.  ...  This indicates that for the structure deduced by SMS4, there always exist 12-round impossible differentials and 12-round zero correlation linear hulls.  ...  Conflict of interest The authors declare that they have no conflict of interest.  ... 
doi:10.1007/s11432-016-0477-8 fatcat:wp56gacnnzd7ri7we5wl6acr6a

Extending Higher-Order Integral: An Efficient Unified Algorithm of Constructing Integral Distinguishers for Block Ciphers [chapter]

Wentao Zhang, Bozhan Su, Wenling Wu, Dengguo Feng, Chuankun Wu
2012 Lecture Notes in Computer Science  
the security of a block cipher against integral cryptanalysis.  ...  In this paper, we give an extension of the concept of higherorder integral, which can make us design better higher-order integral distinguishers for some block ciphers (structures).  ...  ), and the Knowledge Innovation Project of the Chinese Academy of Sciences.  ... 
doi:10.1007/978-3-642-31284-7_8 fatcat:jqwv6yxeufbcvpoe2tdzyguuzq

Algebraic Cryptanalysis of SMS4: Gröbner Basis Attack and SAT Attack Compared [chapter]

Jeremy Erickson, Jintai Ding, Chris Christensen
2010 Lecture Notes in Computer Science  
The SMS4 block cipher is part of the Chinese WAPI wireless standard. This paper describes the specification and offers a specification for a toy version called simplified SMS4 (S-SMS4).  ...  A comparison of SAT and Gröbner basis attacks is provided.  ...  We also worked with Amber Rogers of Northern Kentucky University on creating SAT solver conversion code, and portions of the code used in creating SMS4 equations were written by Brian Nixon of the University  ... 
doi:10.1007/978-3-642-14423-3_6 fatcat:mwjmwqxam5bh5oge2eodj5myem

A lightweight white-box symmetric encryption algorithm against node capture for WSNs

Yang Shi, Zongjian He
2014 2014 IEEE Wireless Communications and Networking Conference (WCNC)  
The basic idea of our approach is to merge several steps of the round function of SMS4 into table lookups, blended by randomly generated mixing bijections.  ...  Therefore, the size of the implementations are significantly reduced while keeping the same security efficiency. The security and efficiency of the proposed solutions are theoretically analyzed.  ...  Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 61202382) and the Youth Science and Technology Foundation of Shanghai (No. 15YF1412600).  ... 
doi:10.1109/wcnc.2014.6952994 dblp:conf/wcnc/ShiH14 fatcat:b7qzxspq5rcnxiazgvri52dkve

A Lightweight White-Box Symmetric Encryption Algorithm against Node Capture for WSNs

Yang Shi, Wujing Wei, Zongjian He
2015 Sensors  
The basic idea of our approach is to merge several steps of the round function of SMS4 into table lookups, blended by randomly generated mixing bijections.  ...  Therefore, the size of the implementations are significantly reduced while keeping the same security efficiency. The security and efficiency of the proposed solutions are theoretically analyzed.  ...  Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 61202382) and the Youth Science and Technology Foundation of Shanghai (No. 15YF1412600).  ... 
doi:10.3390/s150511928 pmid:26007737 pmcid:PMC4482007 fatcat:h2b5o7wjkfhlbmrcvnw4p3tuwe

Improved Linear Attacks on the Chinese Block Cipher Standard

Ming-Jie Liu, Jia-Zhe Chen
2014 Journal of Computer Science and Technology  
This paper improves the previous linear cryptanalysis of SMS4 by giving the first 19-round onedimensional approximations.  ...  The block cipher used in the Chinese Wireless LAN Standard (WAPI), SMS4, was recently renamed as SM4, and became the block cipher standard issued by the Chinese government 3 .  ...  The work is supported by the National Natural Science Foundation of China (Grant No.61202493 and No. 61103237).  ... 
doi:10.1007/s11390-014-1495-9 fatcat:qkobnl3xifgxfigb7m5o2qs6jq

Linearity within the SMS4 Block Cipher [chapter]

Muhammad Reza Z'aba, Leonie Simpson, Ed Dawson, Kenneth Wong
2010 Lecture Notes in Computer Science  
Due to this linearity, it is possible to reduce the number of effective rounds of SMS4 by four. We also investigate the susceptibility of SMS4 to further cryptanalysis.  ...  We present several new observations on the SMS4 block cipher, and discuss their cryptographic significance.  ...  Since SMS4 was made public in January 2006, the cipher has endured extensive cryptanalysis.  ... 
doi:10.1007/978-3-642-16342-5_18 fatcat:kqn4cxytcjhhlmfkzbxoh376qm

Links Among Impossible Differential, Integral and Zero Correlation Linear Cryptanalysis [chapter]

Bing Sun, Zhiqiang Liu, Vincent Rijmen, Ruilin Li, Lei Cheng, Qingju Wang, Hoda Alkhzaimi, Chao Li
2015 Lecture Notes in Computer Science  
is useful in provable security of block ciphers against impossible differential cryptanalysis.  ...  attack on reduced round CAST-256 in the non-weak key model, present a 12-round integral distinguisher of SMS4 and an 8-round integral distinguisher of Camellia without F L/F L −1 .  ...  Table 1 gives the summary of attacks on CAST-256 in the non-weak key model. 12-Round Integral Distinguisher of SMS4 The SMS4 block cipher is designed by the Chinese government as part of their WAPI  ... 
doi:10.1007/978-3-662-47989-6_5 fatcat:opgemjrhl5hhrp5hbtrdww56da

Attacking Reduced-Round Versions of the SMS4 Block Cipher in the Chinese WAPI Standard [chapter]

Jiqiang Lu
2007 Lecture Notes in Computer Science  
SMS4 is a 32-round block cipher with a 128-bit block size and a 128-bit user key. It is used in WAPI, the Chinese WLAN national standard.  ...  These are better than any previously known cryptanalytic results on SMS4 in terms of the numbers of attacked rounds.  ...  Like most cryptanalytic results on block ciphers, our attacks are theoretical in the sense of the assumptions of differential cryptanalysis.  ... 
doi:10.1007/978-3-540-77048-0_24 fatcat:na3u7bpagjalnc5qcpmandq564

Improvements for Finding Impossible Differentials of Block Cipher Structures

Yiyuan Luo, Xuejia Lai
2017 Security and Communication Networks  
We improve Wu and Wang's method for finding impossible differentials of block cipher structures.  ...  We apply it on Gen-CAST256, Misty, Gen-Skipjack, Four-Cell, Gen-MARS, SMS4, MIBS, Camellia⁎, LBlock, E2, and SNAKE block ciphers.  ...  The key step in impossible differential cryptanalysis of a block cipher is to find the longest impossible differential.  ... 
doi:10.1155/2017/5980251 fatcat:exlj4hwokbflbfalxr44ich6m4

Differential Fault Analysis on SMS4 using a single fault

Ruilin Li, Bing Sun, Chao Li, Jianxiong You
2011 Information Processing Letters  
Furthermore, it can be tailored to any block cipher employing a similar structure and an SPN-style round function as that of SMS4.  ...  In the present paper, we propose a new DFA attack on SMS4 using a single fault.  ...  The work in this paper is supported by the Natural Science Foundation of China  ... 
doi:10.1016/j.ipl.2010.11.011 fatcat:6kgxzdn5ufgvxgi56uiomkhy74
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