Patent
Compressing function apparatus for generating hash function, hash function system and method
Zhimin Li,Bo Yang,Yixian Yang,Shihui Zheng,Xinxin Niu,Zhihui Zhang +5 more
- 15 Jul 2009
5
TL;DR: In this article, a Hash function system for generating Hash function and a method thereof is presented. The system comprises the following components: an information receiver which is used for receiving the information for calculating the Hash value; an information divider which divides the information received by the information receiver to information blocks with preset magnitude; a plurality of compression function devices, and each of which is composed by at least two parallel-connected serial step function device rows, receives the no-symbol constant quantity as initial chaining variable and receives the information blocks which are divided by the Information divider and
read more
Abstract: The present invention provides a Hash function system for generating Hash function and a method thereof. The system comprises the following components: an information receiver which is used for receiving the information for calculating the Hash value; an information divider which divides the information received by the information receiver to information blocks with preset magnitude; a plurality of compression function devices, and each of which is composed by at least two parallel-connected serial step function device rows, receives the no-symbol constant quantity as initial chaining variable and receives the information blocks which are divided by the information divider and have preset magnitude as key, executes iterative operation through the at least two serial step function device rows and adds the iterative operation result with the initial link variable for outputting link variable; and a Hash function cascade device which is used for cascading the link variables generated by the last compression function device as the Hash value of information received by the information receiver. The parallel-connected serial step function device rows function with one another, can provide higher security and is a method which can totally resist common attack.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Message authentication using a universal hash function computed with carryless multiplication
Billy Bob Brumley,Alexander W. Dent +1 more
- 20 Feb 2013
TL;DR: In this paper, a method for authenticating a message by a wireless device is described, in which the wireless device obtains the input message and generates a keystream, then computes a message authentication code using the keystream and a universal hash function.
6
Patent
Method and system for generating message digest
Lingbin Kong
- 11 Apr 2012
TL;DR: In this paper, a method and a system for generating a message digest is described, which comprises the following steps: filling and dividing a message to generate a plurality of message blocks; setting a first linear feedback shift register (LFSR) w, a second LFSRv and a third LFSRh, wherein the first LFSrw is formed by 16 message schedule table elements w01, w1,ellipsis w15; the second LfsRv is formed with variables; the third LfsRh is formed using hash values; an initial hash
4
Patent
Method for constructing reinforced hash function based on compression function
Yong Wang,Huadeng Wang,Guoyong Cai,Li Fu,Zhiyong Chen +4 more
- 15 Aug 2012
TL;DR: In this article, the authors proposed a method for reinforcing a hash function based on a compression function, which consists of reinforcing by taking a method of resisting a current differential code analysis and the like as the principal method, also considering about some other attacks, such as a second preimage attack, further adding an input variable in the input of the final group of the compression function.
3
Patent
Method and device for generating Hash value
Matthew Lewis
- 19 Nov 2014
TL;DR: In this article, the authors proposed a method for generating a Hash value, which comprises the following steps: a, input data are divided into 16 input data blocks that respectively have lengths of 32*m bits, m is an integer greater than or equal to 1, a subscript variable i=0 to 15 represents ith input data block Mi, b, eight work data blocks are initialized through pre-given values, each of the eight data blocks has a length of 32 *m bits and the subscript variable k = 0 to 7 represents kth work data block Mk.
1