Abstract
In 2004, SCTE has approved the POD (point-of-deployment) copy protection system as an ANSI standard. In the POD copy protection system, before the POD module removes the scrambling, this module first authenticates a host device to confirm its legitimization. The confirmation procedure is known as a “host authentication mechanism”. However, in 2005, Tian et al. showed that the host authentication mechanism in the current POD copy protection system has the following three weaknesses: (1) The re-authentication procedure cannot stand out a simple replay attack. (2) The host authentication protocol can make a DH (Diffie-Hellman) private key in any run as significant as a device private key. (3) The credentials of the POD module are futile. This paper proposes an improved secure host authentication mechanism for the current POD copy protection system that not only withstands the above three weaknesses but also provides same efficiency.
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Yoon, EJ., Yoo, KY. (2008). Improving the Host Authentication Mechanism for POD Copy Protection System. In: Tsihrintzis, G.A., Virvou, M., Howlett, R.J., Jain, L.C. (eds) New Directions in Intelligent Interactive Multimedia. Studies in Computational Intelligence, vol 142. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68127-4_39
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DOI: https://doi.org/10.1007/978-3-540-68127-4_39
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