Nonlinear Message Expansion for Hash Function

Author

Liu, Jian-dong ; Jiang, Hui-na ; Huang, Shu-tao

Author_Institution

Inf. Eng. Coll., Beijing Inst. of Petrochem. Technol., Beijing

fYear

2008

fDate

Aug. 29 2008-Sept. 2 2008

Firstpage

779

Lastpage

784

Abstract

This paper carries out a statistical analysis on the nonlinear diffusion & propagation of the SHA message expansion. The nonlinear expansion of the message is realized through the rolled-out and folded-over of the integer tent maps, and a piece-wise-nonlinear message expansion scheme is further given. Compared with SHA-256 message expansion, the message expansion mode presented in this paper has enhanced the degree of nonlinear diffusion of the message expansion, and thus improved computation efficiency.

Keywords

cryptography; message authentication; statistical analysis; hash function; integer tent maps; nonlinear diffusion; nonlinear propagation; piece-wise-nonlinear message expansion scheme; statistical analysis; Chaotic communication; Computer science; Cryptography; Educational institutions; Information technology; Iterative algorithms; NIST; Petrochemicals; Protocols; Statistical analysis; Hash Function; Message Expansion; Tent Map;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology, 2008. ICCSIT '08. International Conference on

Conference_Location

Singapore

Print_ISBN

978-0-7695-3308-7

Type

conf

DOI

10.1109/ICCSIT.2008.168

Filename

4624974

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2835081