A secret key cryptosystem by iterating a chaotic map

Toshiki Habutsu, Yoshifumi Nishio, Iwao Sasase, Shinsaku Mori

研究成果: Conference contribution

205 被引用数 (Scopus)

抄録

Chaos is introduced to cryptology. As an example of the applications, a secret key cryptosystem by iterating a one dimensional chaotic map is proposed. This system is based on the characteristics of chaos, which are sensitivity of parameters, sensitivity of initial points, and randomness of sequences obtained by iterating a chaotic map. A ciphertext is obtained by the iteration of a inverse chaotic map from an initial point, which denotes a plaintext. If the times of the iteration is large enough, the randomness of the encryption and the decryption function is so large that attackers cannot break this cryptosystem by statistic characteristics. In addition to the security of the statistical point, even if the cryptosystern is composed by a tent map, which is one of the simplest chaotic maps, setting a finite computation size avoids a ciphertext only attack. The most attractive point of the cryptosystem is that the cryptosystem is composed by only iterating a simple calculations though the information rate of the cryptosystem is about 0.5.

本文言語English
ホスト出版物のタイトルAdvances in Cryptology—EUROCRYPT 1991 - Workshop on the Theory and Application of Cryptographic Techniques, Proceedings
編集者Donald W. Davies
出版社Springer Verlag
ページ127-140
ページ数14
ISBN(印刷版)9783540546207
DOI
出版ステータスPublished - 1991 1 1
イベントWorkshop on the Theory and Application of Cryptographic Techniques, EUROCRYPT 1991 - Brighton, United Kingdom
継続期間: 1991 4 81991 4 11

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
547 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

OtherWorkshop on the Theory and Application of Cryptographic Techniques, EUROCRYPT 1991
国/地域United Kingdom
CityBrighton
Period91/4/891/4/11

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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