Paper 2004/289 Original: eprint.iacr.org/2004/289 ↗

Fault attack on the DVB Common Scrambling Algorithm

Kai Wirt
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.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2004-11-08: last updated
2004-11-05: published
Short URL
https://ia.cr/2004/289
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2004/289,
      author = {Kai Wirt},
      title = {Fault attack on the DVB Common Scrambling Algorithm},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/289},
      year = {2004},
      url = {https://eprint.iacr.org/2004/289}
}
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