Paper Title
An Efficient Synchronization Scheme For Maritime Cloud Security

In the cloud environment, data synchronization is a widely-used element technology, which aims to synchronize data of different pieces of equipment through information exchanges. There have been many studies on synchronization methods. Maritime cloud is different from general storage cloud, and its synchronization should be performed by taking into account geological areas based on geocasting. Therefore, to synchronize data corresponding to characteristics of the maritime cloud, a new synchronization method is required. The method proposed in this paper enables geocasting based synchronization between vessels, which is suitable for maritime conditions, and does not expose information in the course of synchronization even in the case of broadcasting through an unsafe channel. In addition, the method ensures integrity based on block ID and supports delta update, thereby minimizing bandwidth and boosting performance. Keywords- Maritime Cloud, Cloud Security, Synchronization, Almanac, Geocasting.