Related key differential cryptanalysis of full-round SPECTR-H64 and CIKS-1

Youngdai Ko; Changhoon Lee; Seokhie Hong; Sangjin Lee

Related key differential cryptanalysis of full-round SPECTR-H64 and CIKS-1

Youngdai Ko, Changhoon Lee, Seokhie Hong, Sangjin Lee

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper we show an attack on full-round SPECTR H64 and CIKS-1 using related key differential characteristic, which are based on data-dependent rotation with simple key schedule. To find partial 35-bit subkeys of SPECTR-H64 it needs about 2²³ data and 2¹⁶ encryptions with an expected success probability 95.8%. As for CIKS-1, 2⁴ data and 2³³ encryptions are requried to find the final round key of it with an expected success probability 80%.

Original language	English
Pages (from-to)	137-148
Number of pages	12
Journal	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	3108
Publication status	Published - 2004

Keywords

CIKS-1
Data-dependent rotation
Related Key differential attack
SPECTR-H64

ASJC Scopus subject areas

Theoretical Computer Science
Computer Science(all)

Cite this

@article{9b5f7081ad404d94bee1d6ae262d7829,

title = "Related key differential cryptanalysis of full-round SPECTR-H64 and CIKS-1",

abstract = "In this paper we show an attack on full-round SPECTR H64 and CIKS-1 using related key differential characteristic, which are based on data-dependent rotation with simple key schedule. To find partial 35-bit subkeys of SPECTR-H64 it needs about 223 data and 216 encryptions with an expected success probability 95.8%. As for CIKS-1, 24 data and 233 encryptions are requried to find the final round key of it with an expected success probability 80%.",

keywords = "CIKS-1, Data-dependent rotation, Related Key differential attack, SPECTR-H64",

author = "Youngdai Ko and Changhoon Lee and Seokhie Hong and Sangjin Lee",

year = "2004",

language = "English",

volume = "3108",

pages = "137--148",

journal = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",

issn = "0302-9743",

publisher = "Springer Verlag",

}

TY - JOUR

T1 - Related key differential cryptanalysis of full-round SPECTR-H64 and CIKS-1

AU - Ko, Youngdai

AU - Lee, Changhoon

AU - Hong, Seokhie

AU - Lee, Sangjin

PY - 2004

Y1 - 2004

N2 - In this paper we show an attack on full-round SPECTR H64 and CIKS-1 using related key differential characteristic, which are based on data-dependent rotation with simple key schedule. To find partial 35-bit subkeys of SPECTR-H64 it needs about 223 data and 216 encryptions with an expected success probability 95.8%. As for CIKS-1, 24 data and 233 encryptions are requried to find the final round key of it with an expected success probability 80%.

AB - In this paper we show an attack on full-round SPECTR H64 and CIKS-1 using related key differential characteristic, which are based on data-dependent rotation with simple key schedule. To find partial 35-bit subkeys of SPECTR-H64 it needs about 223 data and 216 encryptions with an expected success probability 95.8%. As for CIKS-1, 24 data and 233 encryptions are requried to find the final round key of it with an expected success probability 80%.

KW - CIKS-1

KW - Data-dependent rotation

KW - Related Key differential attack

KW - SPECTR-H64

UR - http://www.scopus.com/inward/record.url?scp=24944473711&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24944473711&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:24944473711

SN - 0302-9743

VL - 3108

SP - 137

EP - 148

JO - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

JF - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

ER -

Related key differential cryptanalysis of full-round SPECTR-H64 and CIKS-1

Abstract

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this