Enhanced key management for cable TV service

Yiu Wing LEUNG*

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

Cable TV service provider must manage the encryption/decryption keys to ensure that only the authorized set-top boxes can decrypt the pay-TV channels, and ITU recommended a key management scheme for this purpose. Nevertheless, some crackers crack and reproduce set-top boxes for profit, and many people use the pirated set-top boxes to decrypt and watch the pay-TV channels without paying subscription fee. In this paper, we enhance the key management scheme to protect the service provider's revenue against piracy. Using the enhanced scheme, even if a cracker could crack and reproduce set-top boxes, the pirated set-top boxes are only applicable in a small geographical region (i.e., they have limited spatial applicability) and they will not function within one charging period (i.e., they have limited temporal applicability).

Original languageEnglish
Title of host publication2004 IEEE International Conference on Multimedia and Expo (ICME)
Pages2115-2118
Number of pages4
Publication statusPublished - 2004
Event2004 IEEE International Conference on Multimedia and Expo (ICME) - Taipei, Taiwan, Province of China
Duration: 27 Jun 200430 Jun 2004

Publication series

Name2004 IEEE International Conference on Multimedia and Expo (ICME)
Volume3

Conference

Conference2004 IEEE International Conference on Multimedia and Expo (ICME)
Country/TerritoryTaiwan, Province of China
CityTaipei
Period27/06/0430/06/04

Scopus Subject Areas

  • Engineering(all)

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