Heraclitus : a LFSR-based stream cipher with key dependent structure

Colbert, Bernard, Dekker, Anthony H. and Batten, Lynn Margaret 2011, Heraclitus : a LFSR-based stream cipher with key dependent structure, in ICCSP 2011 - International Conference on Communications and Signal Processing, IEEE, Piscataway, N.J., pp. 141-145.

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Title Heraclitus : a LFSR-based stream cipher with key dependent structure
Author(s) Colbert, Bernard
Dekker, Anthony H.
Batten, Lynn Margaret
Conference name International Conference on Communications and Signal Processing (2011 : Kerala, India)
Conference location Kerala, India
Conference dates 10-12 Feb. 2011
Title of proceedings ICCSP 2011 - International Conference on Communications and Signal Processing
Editor(s) [Unknown]
Publication date 2011
Conference series International Conference on Communications and Signal Processing
Start page 141
End page 145
Publisher IEEE
Place of publication Piscataway, N.J.
Keyword(s) LFSR-based stream ciphers
real time
stream ciphers
Summary We describe Heraclitus as an example of a stream cipher that uses a 128 bit index string to specify the structure of each instance in real time: each instance of Heraclitus will be a stream cipher based on mutually clocked shift registers. Ciphers with key-dependent structures have been investigated and are generally based on Feistel networks. Heraclitus, however, is based on mutually clocked shift registers. Ciphers of this type have been extensively analysed, and published attacks on them will be infeasible against any instance of Heraclitus. The speed and security of Heraclitus makes it suitable as a session cipher, that is, an instance is generated at key exchange and used for one session.
ISBN 9781424497980
Language eng
Field of Research 080202 Applied Discrete Mathematics
Socio Economic Objective 890105 Satellite Communication Networks and Services
HERDC Research category E1 Full written paper - refereed
HERDC collection year 2011
Copyright notice ©2011, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30042193

Document type: Conference Paper
Collection: School of Information Technology
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