Precise transformation of Feistel to SP fuse into LFSR

Lan Luo, Zehui Qu, Chaoming Song

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

For the published block cipher algorithm, two kinds of round functions have been researched. Block ciphers in network environments are taking more risks than ever before because of their initialization key's distribution in the internet. The security of block cipher algorithm is affected by linear bias and nonlinear bias which are restricted by confusion layer and diffusion layer. This article takes an approach on how block cipher's two round structures are initially transformed when they fuse into LFSR. The SP structure can be considered two F functions in one Feistel round function which combines both right and left of origin data transformation. Furthermore, the round number linear function and nonlinear function of Feistel and SP structure are compared. The merit of SP structure is that it can fuse in LFSR as a nonlinear filter without memory.

Original languageEnglish (US)
Pages (from-to)168-171
Number of pages4
JournalChina Communications
Volume6
Issue number4
StatePublished - Nov 1 2009
Externally publishedYes

Fingerprint

Electric fuses
Internet
Data storage equipment

Keywords

  • Block cipher algorithm
  • Fuse in LFSR
  • Merit of SP structure
  • Precise transformation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Precise transformation of Feistel to SP fuse into LFSR. / Luo, Lan; Qu, Zehui; Song, Chaoming.

In: China Communications, Vol. 6, No. 4, 01.11.2009, p. 168-171.

Research output: Contribution to journalArticle

Luo, Lan ; Qu, Zehui ; Song, Chaoming. / Precise transformation of Feistel to SP fuse into LFSR. In: China Communications. 2009 ; Vol. 6, No. 4. pp. 168-171.
@article{4c395425a50944299d203c690fb2f61b,
title = "Precise transformation of Feistel to SP fuse into LFSR",
abstract = "For the published block cipher algorithm, two kinds of round functions have been researched. Block ciphers in network environments are taking more risks than ever before because of their initialization key's distribution in the internet. The security of block cipher algorithm is affected by linear bias and nonlinear bias which are restricted by confusion layer and diffusion layer. This article takes an approach on how block cipher's two round structures are initially transformed when they fuse into LFSR. The SP structure can be considered two F functions in one Feistel round function which combines both right and left of origin data transformation. Furthermore, the round number linear function and nonlinear function of Feistel and SP structure are compared. The merit of SP structure is that it can fuse in LFSR as a nonlinear filter without memory.",
keywords = "Block cipher algorithm, Fuse in LFSR, Merit of SP structure, Precise transformation",
author = "Lan Luo and Zehui Qu and Chaoming Song",
year = "2009",
month = "11",
day = "1",
language = "English (US)",
volume = "6",
pages = "168--171",
journal = "China Communications",
issn = "1673-5447",
publisher = "China Institute of Communication",
number = "4",

}

TY - JOUR

T1 - Precise transformation of Feistel to SP fuse into LFSR

AU - Luo, Lan

AU - Qu, Zehui

AU - Song, Chaoming

PY - 2009/11/1

Y1 - 2009/11/1

N2 - For the published block cipher algorithm, two kinds of round functions have been researched. Block ciphers in network environments are taking more risks than ever before because of their initialization key's distribution in the internet. The security of block cipher algorithm is affected by linear bias and nonlinear bias which are restricted by confusion layer and diffusion layer. This article takes an approach on how block cipher's two round structures are initially transformed when they fuse into LFSR. The SP structure can be considered two F functions in one Feistel round function which combines both right and left of origin data transformation. Furthermore, the round number linear function and nonlinear function of Feistel and SP structure are compared. The merit of SP structure is that it can fuse in LFSR as a nonlinear filter without memory.

AB - For the published block cipher algorithm, two kinds of round functions have been researched. Block ciphers in network environments are taking more risks than ever before because of their initialization key's distribution in the internet. The security of block cipher algorithm is affected by linear bias and nonlinear bias which are restricted by confusion layer and diffusion layer. This article takes an approach on how block cipher's two round structures are initially transformed when they fuse into LFSR. The SP structure can be considered two F functions in one Feistel round function which combines both right and left of origin data transformation. Furthermore, the round number linear function and nonlinear function of Feistel and SP structure are compared. The merit of SP structure is that it can fuse in LFSR as a nonlinear filter without memory.

KW - Block cipher algorithm

KW - Fuse in LFSR

KW - Merit of SP structure

KW - Precise transformation

UR - http://www.scopus.com/inward/record.url?scp=77956038649&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956038649&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:77956038649

VL - 6

SP - 168

EP - 171

JO - China Communications

JF - China Communications

SN - 1673-5447

IS - 4

ER -