Constructing Keyed Hash Algorithm Using Enhanced Chaotic Map with Varying Parameter

A keyed hash algorithm is proposed based on 1-D enhanced quadratic map (EQM) with varying parameter. Three measures, including assigning unique one-time keys, key expansion, and hash length extension, are taken to enhance its security. First, the message is transformed into a parameter sequence for...

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Bibliographic Details
Published in:Mathematical problems in engineering 2020, Vol.2020 (2020), p.1-10
Main Authors: Xu, Chengbo, Ma, Chao, Kadir, Abdurahman, Liu, Guoyan
Format: Article
Language:English
Subjects:
Algorithms
Chaos theory
Cryptography
Mathematical problems
Parameters
Quantum computing
Reliability analysis
Security
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Summary:A keyed hash algorithm is proposed based on 1-D enhanced quadratic map (EQM) with varying parameter. Three measures, including assigning unique one-time keys, key expansion, and hash length extension, are taken to enhance its security. First, the message is transformed into a parameter sequence for the EQM to be absorbed, and then the extended keys are generated as the initial values of the EQM. Finally, the EQM is iterated with redundant loops to transform the variable values into a hash value. The algorithm is so flexible that it can generate hash value with different lengths of 256, 512, 1024, or more bits through a parameter switcher, and redundant loops can eliminate the transient effect of chaos and mitigate the increasing threat of the side-channel attack. Security evaluations and comparison demonstrated its practicability and reliability.
ISSN:1024-123X
1563-5147
DOI:10.1155/2020/4071721