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Analysis and Design of Hash Function

Author: LiRuiLin
Tutor: LiChao
School: National University of Defense Science and Technology
Course: Mathematics
Keywords: Hash functions Differential propagation Linear approximation herding attack Block cipher The MD4-x series Hash function
CLC: TN918.1
Type: Master's thesis
Year: 2007
Downloads: 168
Quote: 2
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Abstract


Hash function has a very broad and important applications in the field of information security . The the MD4-x series classic Hash function has been hit hard in 2004 , the password academia ushered in the analysis and design craze Hash function . A commonly used method is designed based on a different group of mixed computing dedicated Hash function components . In this paper, the cryptographic properties of hybrid computing First, according to the the run distribution characteristics of the input differential differential propagation properties of hybrid computing , based on the iterative construction method ; followed by rational formal power series based on the free monoid theory of mixed computing the linear approximation nature ; several applications concludes with a discussion of the nature and the linear approximation of the differential propagation of hybrid computing nature . The Hash functions attacks attack iterative structure and dedicated Hash function the MD4-x series attacks . This article discusses the the iterative structure Herding Attacks , the iterative structure reverse order Herding attack . The study found that : the compression function satisfies certain backward predictive in nature , in reverse order Herding attack is more effective than the Herding attack , we give some Hash function in reverse Herding attack instances . Select dedicated Hash function round constant and the FSE 2006 compression function replacement components selected to make the analysis . The design principle of the block cipher are increasingly being used in the designs of the Hash function . Rijndael block cipher based framework design a new Hash function - RDH algorithm is based on mixed computing and cycle shift on different groups , to ensure full of confusion and diffusion of the news chain variable given the design principles of the algorithm and security analysis .

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