K2: A STREAM CIPHER ALGORITHM USING DYNAMIC FEEDBACK CONTROL

Shinsaku Kiyomoto; Toshiaki Tanaka; Kouichi Sakurai

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Paper

K2: A STREAM CIPHER ALGORITHM USING DYNAMIC FEEDBACK CONTROL

Topics: Coding Theory and Practice

In Proceedings of the Second International Conference on Security and Cryptography - Volume 0ICETE, 204-213, 2007 , Barcelona, Spain

Authors: Shinsaku Kiyomoto ¹ ; Toshiaki Tanaka ¹ and Kouichi Sakurai ²

Affiliations: ¹ KDDI R & D Laboratories Inc., Japan ; ² Kyushu University, Japan

Keyword(s): Stream Cipher, Dynamic Feedback Control, Irregular Clocking, Pseudorandom Generator.

Related Ontology Subjects/Areas/Topics: Coding Theory and Practice ; Cryptographic Techniques and Key Management ; Information and Systems Security

Abstract: A variety of different clock-controlled stream ciphers and attacks on them have been described in a number of papers. However, few word-oriented algorithms with an irregular clocking mechanism have been proposed. This paper proposes a new design of irregular clocking for word-oriented stream ciphers that is dynamic feedback control and show analysis results of its security and performance. The stream cipher K2 v2.0 is a secure and high-performance stream cipher using the dynamic feedback control, which is applicable for several applications. We believe that the dynamic feedback control mechanism is potentially effective against several different types of attacks, not only existing attacks but also novel attacks.

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Paper citation in several formats:

Kiyomoto, S.; Tanaka, T. and Sakurai, K. (2007). K2: A STREAM CIPHER ALGORITHM USING DYNAMIC FEEDBACK CONTROL. In Proceedings of the Second International Conference on Security and Cryptography (ICETE 2007) - SECRYPT; ISBN 978-989-8111-12-8; ISSN 2184-3236, SciTePress, pages 204-213. DOI: 10.5220/0002122302040213

@conference{secrypt07,
author={Shinsaku Kiyomoto. and Toshiaki Tanaka. and Kouichi Sakurai.},
title={K2: A STREAM CIPHER ALGORITHM USING DYNAMIC FEEDBACK CONTROL},
booktitle={Proceedings of the Second International Conference on Security and Cryptography (ICETE 2007) - SECRYPT},
year={2007},
pages={204-213},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002122302040213},
isbn={978-989-8111-12-8},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the Second International Conference on Security and Cryptography (ICETE 2007) - SECRYPT
TI - K2: A STREAM CIPHER ALGORITHM USING DYNAMIC FEEDBACK CONTROL
SN - 978-989-8111-12-8
IS - 2184-3236
AU - Kiyomoto, S.
AU - Tanaka, T.
AU - Sakurai, K.
PY - 2007
SP - 204
EP - 213
DO - 10.5220/0002122302040213
PB - SciTePress