Variant of RSA - Multi prime RSA that is backwards compatible that is a system using multi prime RSA can interoperate with systems using standard RSA and this variant is used to speed up RSA decryption.

The moving vehicles detection and tracking is a necessity for collision-free navigation. Motionbased detection is challenging due to low signal to noise ratio in natural unstructured environments. This paper aims at real-time analysis to detect and track objects ahead for safety, motion detection, and target tracing. This paper describes of variation in distances between the camera and the objects in different parts of the scene (object depth) in surveillance videos. 'Vicinity Factor', is robust to noise and object segmentation. It can applied to estimate spatial thresholds and object size in different parts of the scene. A comprehensive approach to localizing target Objects in video under various conditions. I have investigated videos of day and night on different types of conditions showing that my approach is robust and effective in dealing with changes in environment and illumination and that real-time processing becomes possible.