Presentation an effective algorithm to attack Common Scrambling Algorithm (CSA) in digital video broadcasting (DVB) system
Hamidreza Damghani,
Student of Master of Degree in the field of Communications Engineering, Islamic Azad University, Yadegar Imam Khomeini (Shahr-e-Rey) Branch, Tehran, Iran, Hamidreza.damghani@gmail.com
Saeed Ghazi Maghrebi,
Assistant Professor of Engineering – Communications Engineering Department, Azad University, Yadegar Imam Khomeini (Shahr-e-Rey) Branch, Tehran, Iran
Mohammadreza Moniri Hamedani,
Assistant Professor of Engineering – Communications Engineering Department, Azad University, Yadegar Imam Khomeini (Shahr-e-Rey) Branch, Tehran, Iran
Abstract
Common Scrambling Algorithm (CSA) is used for encoding the video streams in video player broadcasting system. For a more security margin, this algorithm is as a cascade combination of stream and block cipher. Common Scrambling Algorithm has been secure against the classic attacks, while it has been vulnerable against the side-channel ones. One of side-channel attacks on Common Scrambling Algorithm in the digital video broadcasting (DVB) will be studied in this paper. Descrambling the block part of this algorithm, the common key for the whole algorithm is gained. With this, a general approach for a high security encoding against the side-channel attacks is provided.
Keywords : block cipher, common scrambling algorithm (CSA), digital video broadcasting, security, side-channel attack, stream cipher
Pour citer cet article
Hamidreza Damghani, Saeed Ghazi Maghrebi & Mohammadreza Moniri Hamedani, «Presentation an effective algorithm to attack Common Scrambling Algorithm (CSA) in digital video broadcasting (DVB) system», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 85 - Année 2016, Actes de colloques, Special edition, 840 - 848 URL : http://popups.ulg.be/0037-9565/index.php?id=5684.