Abstract
The period of a recent streamcipher proposal Edon80 is analyzed. Even though the average period may be quite large, we show that for a randomly chosen key and IV pair, there exists a non-dismissible probability that the produced keystream will be of very short period.
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ECRYPT, eSTREAM - ECRYPT Stream Cipher Project. Information, available from http://www.ecrypt.eu.org/stream/
Markovski, S., Gligoroski, D., Kocarev, L.: Unbiased random sequences from quasigroup string transformations. In: Gilbert, H., Handschuh, H. (eds.) FSE 2005. LNCS, vol. 3557, pp. 163–180. Springer, Heidelberg (2005)
Gligoroski, D., Markovski, S., Kocarev, L., Gušev, M.: Edon80 - Hardware synchoronous stream cipher. eSTREAM, ECRYPT Stream Cipher Project Report 2005/007 (2005); Presented at Symmetric Key Encryption Workshop, Århus, Denmark (May 2005) Available from [1]
Gligoroski, D., Markovski, S., Kocarev, L., Gušev, M.: Understanding periods in Edon80. eSTREAM, ECRYPT Stream Cipher Project Report 2005/054 (2005) Available from [1]
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Hong, J. (2005). Period of Streamcipher Edon80 . In: Maitra, S., Veni Madhavan, C.E., Venkatesan, R. (eds) Progress in Cryptology - INDOCRYPT 2005. INDOCRYPT 2005. Lecture Notes in Computer Science, vol 3797. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11596219_3
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DOI: https://doi.org/10.1007/11596219_3
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-30805-8
Online ISBN: 978-3-540-32278-8
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