关键词: 云计算, 安全通信, 同步

Abstract: Cloud computing is the trend of development of the Internet，and the important technical support of Internet of things as well.As the application of cloud computing getting deeper，the security of cloud computing becomes one of the most significant problems.Based on the analysis of the common frame of the cloud computing and the characteristic of the uniform management for cloud computing services，this paper designs a Simple Secure Communication Model for Interior Cloud（SSCMIC） aiming at the security of the communications interior the cloud.This model uses synchronous stream of keys to actualize communication with cryptograph，in order to enhance the security of the cloud.

Key words: cloud computing, safe communication, synchronization