A new satellite CAS using password-based protocol


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 6, No. 12, pp. 3597-3605, Dec. 1999
10.3745/KIPSTE.1999.6.12.3597,   PDF Download:

Abstract

We introduce a new satellite Conditional Access System(CAS) that a subscriber could watch a pay-TV knowing only this or her identity and password, without using a smart card. For this new system, two password-based protocols are presented which not only share a session key and authenticate each other but also download an authorization key. This system has some merits: First, compared with current systems, it reduce the amount of computations by eliminating the AK-encryption module in SMS(Subscriber Management System) and simplifying the receiver's CW-decryption process. Second, since this system does not need an expensive Card Adaptive Device(CAD), it caan reduce costs. Finally it provides descrambler independence allowing it to be used through any TV set-top box that includes a descrambler, unlike the current system that a descrambler is linked with a smart card.


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Cite this article
[IEEE Style]
Y. S. Kim, K. W. Sohn, H. K. Yang, D. H. Won, "A new satellite CAS using password-based protocol," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 6, no. 12, pp. 3597-3605, 1999. DOI: 10.3745/KIPSTE.1999.6.12.3597.

[ACM Style]
Young Soo Kim, Ki Wook Sohn, Hyung Kyu Yang, and Dong Ho Won. 1999. A new satellite CAS using password-based protocol. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 6, 12, (1999), 3597-3605. DOI: 10.3745/KIPSTE.1999.6.12.3597.