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2004
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Collusion attack on a multi-key secure video proxy scheme

9 years 5 months ago
Collusion attack on a multi-key secure video proxy scheme
In ACM Multimedia’2002, a video proxy scheme was proposed for secure video delivery. In the scheme, a video is cached in proxies in encrypted form so that it remains nondisclosed even if the proxies are compromised. The proxies re-encrypt the video before its distribution, and different clients would receive different keys for the protected video. In this paper we present a security analysis on the scheme and show that the scheme is subject to collusion attack. Two or more clients working together can find out video server’s secret keys and hence compromise the system. The countermeasure to the collusion attack is presented.
Yongdong Wu, Feng Bao
Added 30 Jun 2010
Updated 30 Jun 2010
Type Conference
Year 2004
Where MM
Authors Yongdong Wu, Feng Bao
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