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Journal Article A Novel Protocol for Downloadable CAS
Cited 13 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Young Ho Jeong, Soon Choul Kim, Hee Jeong Kim, Han-Seung Koo, Eun Jung Kwon
Issue Date
2008-08
Citation
IEEE Transactions on Consumer Electronics, v.54, no.3, pp.1236-1243
ISSN
0098-3063
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/TCE.2008.4637612
Abstract
This paper presents a novel protocol for downloadable conditional access system (DCAS) which can securely download conditional access (CA) software via bidirectional communication channel. The proposed DCAS protocol uses pre-assigned keys and certificates for mutual authentication between a DCAS headend and DCAS host, and then it shares a session key for encrypting and decrypting CA software to be downloaded to a DCAS host. In order to verify the stability and effectiveness of the proposed protocol, we implement the DCAS protocol simulator. It can emulate the function of DCAS entities and the process of messages for mutual authentication, session key sharing and code downloading. Finally, experimental results indicate that the proposed protocol satisfies the design requirements for DCAS. © 2008 IEEE.
KSP Keywords
Bidirectional communication, Conditional access system, Session key, communication channel, design requirements, key sharing, mutual authentication