Title :
A key transport scheme for pay-TV system based on polynomial reconstruction
Author :
Di, Wang ; Xiaochun, Chen ; Zucheng, Zhou
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Schemes of key distribution and transport are analyzed for different key hierarchies of a pay-TV system, and the efficiency and the security of key management are further discussed. A novel key transport scheme using polynomials to reconstruct secret keys is provided based on the above key management schemes. The security of this novel scheme is proved to be better than that of others.
Keywords :
cryptography; multicast communication; polynomials; telecommunication security; television broadcasting; conditional access system; encryption; key distribution; key hierarchies; key transport scheme; pay-TV system; polynomial reconstruction; safe multicast; secret key reconstruction; single-broadcasting networks; Authorization; Communication channels; Content addressable storage; Cryptography; Polynomials; Security; Speech processing;
Conference_Titel :
Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on
Print_ISBN :
0-7803-8687-6
DOI :
10.1109/ISIMP.2004.1434090
