In this paper,we introduce a novel way to solve thetradeoff problem about communication,storage,computation overhead of broadcast encryptionscheme.We construct
This paper focuses on the ongoing convergence strategy of network and services of China Telecom in full services competition. The measures on the integration of
Since 2000 mobile communications have undergoneextremely fast growth in Russia with a penetration ratefar surpassing China. In October 2007, Russian 3Gmobile co