A Study on Appropriate Device Authentication Scheme Based PKI for Exchangeable CAS(XCAS) 


Vol. 17,  No. 4, pp. 347-360, Aug.  2010
10.3745/KIPSTC.2010.17.4.347


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  Abstract

A condition access system (CAS) refers to a hardware-based system that allows only authenticated users to have access to contents. The CAS has many disadvantages found in that in the replacement of multiple service operator (MSO) a set-top box should be also changed and the smart-card often causes malfunction. To deal with the problems, exchangeable CAS (XCAS) was developed in 2009. However, in the XCAS, no method to authenticate a proper set-top box has been put forward. In this paper, we propose a novel program for set-top authentication in the XCAS. Additionally, we offer a format of certificate of authentication, and procedures of issuing the certificate for broadcasting services suitable for the XCAS. The technical method of authentication a set-top box that will be discussed is of high efficiency since in the MSO it requires only two subjects to communicate during the authentication in the MSO.

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[IEEE Style]

Y. N. Hwang, H. J. Jeong, D. H. Won, S. J. Kim, "A Study on Appropriate Device Authentication Scheme Based PKI for Exchangeable CAS(XCAS)," The KIPS Transactions:PartC, vol. 17, no. 4, pp. 347-360, 2010. DOI: 10.3745/KIPSTC.2010.17.4.347.

[ACM Style]

Yu Na Hwang, Han Jae Jeong, Dong Ho Won, and Seung Joo Kim. 2010. A Study on Appropriate Device Authentication Scheme Based PKI for Exchangeable CAS(XCAS). The KIPS Transactions:PartC, 17, 4, (2010), 347-360. DOI: 10.3745/KIPSTC.2010.17.4.347.

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