Title :
Logical key tree based secure multicast protocol with copyright protection
Author :
Chen, Wen-Tsuen ; Hsu, Ho-Ling ; Chiang, Jeng-Long
Author_Institution :
Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
SMPCP is a multicast watermark scheme to protect valued contents from illegal distribution. However, it requires an overhead of O(N) on cryptographic encryptions and message size, here N is the size of group members. This paper proposes a logical key tree based secure multicast protocol, LKT-SMPCP, to improve the overhead in the SMPCP. Experimental results show that LKT-SMPCP reduces the encryption overhead by 30% as compared with the original SMPCP.
Keywords :
Internet; cryptography; multicast protocols; telecommunication security; trees (mathematics); watermarking; Internet; copyright protection; cryptographic encryption; logical key tree; multicast watermark scheme; secure multicast protocol; Authentication; Computer science; Content management; Copyright protection; Cryptography; Data security; Internet; Multicast protocols; Pricing; Watermarking;
Conference_Titel :
Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on
Print_ISBN :
0-7695-2249-1
DOI :
10.1109/AINA.2005.236
