Key management mechanism in ALTO/SDN based CDNi architecture

Content delivery network interconnection (CDNi) as a new interactive network which inherits all of the advantages of single CDN. Moreover, CDNs supported by different network operators can communicate with each other directly through the interfaces between them. Meanwhile, the interactivity also brings some security issues. In this paper, we propose a new CDNi communication architecture which combined with another two efficient technologies, ALTO and SDN. Based on this architecture, a key generation and distribution mechanism is also proposed to ensure the security communication of content in CDNi. From the analysis result, we can proof that it is scarcely possible for attackers to break our security system.