The information shared over network like audio and video files will be having major challenge due to security credentials. In large scale systems like cloud infrastructure used to improve the better security from past one decade. The contents are like pictures, audio and video clips are shared over the online training sessions in recent days. Therefore the video files are used to protect using digital signature and digital watermarking. The content of the multimedia files are require the better environment for sharing of knowledge using private and public clouds. The digital signature method is used for multimedia components such as 2D and 3D video clips and shared among the users on cloud infrastructure will be predicted with various cloud based security techniques.