Fault attack on the DVB common scrambling algorithm

Authors:
Kai Wirt
Affiliations:
Department of Computer Science, Technical University Darmstadt, Darmstadt, Germany
Venue:
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part II
Year:
2005

Citing 3
Cited 2

Differential Fault Analysis of Secret Key Cryptosystems

CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Fault Attacks on RSA with CRT: Concrete Results and Practical Countermeasures

CHES '02 Revised Papers from the 4th International Workshop on Cryptographic Hardware and Embedded Systems
On the importance of checking cryptographic protocols for faults

EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques

Attacking smart card systems: Theory and practice

Information Security Tech. Report
Breaking DVB-CSA

WEWoRC'11 Proceedings of the 4th Western European conference on Research in Cryptology

Quantified Score

Hi-index	0.00

Visualization

Abstract

The Common Scrambling Algorithm (CSA) is used to encrypt streams of video data in the Digital Video Broadcasting (DVB) system. The algorithm uses a combination of a stream and a block cipher, apparently for a larger security margin. However these two algorithms share a common key. In this paper we present a fault attack on the block cipher which can be launched without regarding the stream cipher part. This attack allows us to reconstruct the common key and thus breaks the complete Algorithm.