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H.264 is the new Video Encoding World Standard, how to guarantee its security is an urgent problem. In this paper a new video encryption algorithm for H.264 is proposed, which utilized scrambling of intra-prediction, inter-prediction mode and encryption of transform result, motion vector. The results show that the proposed method exhibits nice security, has(More)
Video encryption is becoming increasingly important as multimedia applications gain more and more popularity. With a focus on the widely-used H.264 video coding standard, various encryption algorithms based on the intra prediction mode have been developed while suffering limited scrambling space and inadequate security. In this paper, the existing(More)
Speech encryption is becoming increasingly important as the increasing relevance of multimedia applications such as video conference and news broadcasting. However, multimedia encryption and decryption are often computationally demanding and unpractical for powerconstrained devices and narrow bandwidth environments. It is a challenge to obtain a good(More)
Speech encryption is becoming increasingly important as the increasing relevance of multimedia applications such as video conference and news broadcasting. However, multimedia encryption and decryption are often computationally demanding and unpractical for power-constrained devices and narrow bandwidth environments. To tackle this situation, two novel(More)
  • Ameya Hanamsagar, Ninad Jane, +14 authors Alex X. Liu
  • 2014
Firewall secures a private network from intrusions from other networks. The firewall has ACLs (Access Control List) that contain rules used to allow or deny incoming traffic. These rules form the security policy of the firewall. The large size and complexity of modern networks result in large and complex firewall policies. Designing policies for a network(More)
Agent coalition is an important cooperative manner for applications where an agent can’t efficiently finish a task by itself and coalition performance counts for much to the accomplishment of tasks. Existing researches in agent coalition problem lack for sound evaluation of coalition after coalition formation. The hard topic is how to evaluate a coalition(More)