Weaknesses in the initialisation process of the Common Scrambling Algorithm Stream Cipher

Bartlett, Harry, Alhamdan, Ali, Simpson, Leonie, Dawson, Edward, & Wong, Kenneth Koon-Ho (2014) Weaknesses in the initialisation process of the Common Scrambling Algorithm Stream Cipher. In Winterhof, Arne & Schmidt, Kai-Uwe (Eds.) Lecture Notes in Computer Science, Springer-Verlag, Melbourne, VIC, pp. 220-233.

[img] Accepted Version (PDF 464kB)
Administrators only | Request a copy from author

View at publisher

Abstract

The Common Scrambling Algorithm Stream Cipher (CSASC) is a shift register based stream cipher designed to encrypt digital video broadcast. CSA-SC produces a pseudo-random binary sequence that is used to mask the contents of the transmission. In this paper, we analyse the initialisation process of the CSA-SC keystream generator and demonstrate weaknesses which lead to state convergence, slid pairs and shifted keystreams. As a result, the cipher may be vulnerable to distinguishing attacks, time-memory-data trade-off attacks or slide attacks.

Impact and interest:

0 citations in Scopus
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 74378
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Common Scrambling Algorithm, stream cipher, initialisation, state convergence, slid pairs, shifted keystream
DOI: 10.1007/978-3-319-12325-7_19
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DATA FORMAT (080400) > Data Encryption (080402)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > Institutes > Institute for Future Environments
Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Springer-Verlag
Deposited On: 29 Jul 2014 22:48
Last Modified: 08 Dec 2014 02:32

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page