Decentralized mobile SNS architecture and its personal information management mechanism

Mobile SNS is one of the most popular topics of mobile Internet. In order to fulfill the user demand for self-maintained independent social network and ensure the privacy of their personal information and resources, the paper proposes system architecture of decentralized mobile SNS. In the temporary scenarios, the system makes use of the existent specification of FOAF (Friend-of-a-Friend) to describe users' personal information and act as a certificate to be identified by SNS sites. Ticket-based Access Authorization System (TAAS) is provided to grant permission to acquire resources on personal portal. Meanwhile, the mechanism and algorithm are devised for user profile complete deletion when users are going to quit the service for the temporary scenarios.