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Along with the many environmental changes, it enables a disaster  either natural or man-made objects. One of the efforts made to  prevent disasters from happening is to make a system that is able to  provide information about the status of the environment that is  around. Many developments in the sensor system makes it possible  to load a system that will supply real-time on the status of  environmental conditions with a good security system. This study  created a supply system status data of environmental conditions,  especially on bridges by using Ubiquitous Sensor Network. Sensor  used to detect vibrations are using an accelerometer. Supply of data  between sensors and servers using ZigBee communication protocol  wherein the data communication will be done using the Elliptic Curve  Integrated security mechanisms Encryption Scheme and on the use of  Elliptic Curve key aggrement Menezes-Qu-Vanstone. Test results  show the limitation of distance for communication is as far as 55  meters, with the computation time for encryption and decryption  with 97 and 42 seconds extra time for key exchange is done at the  beginning of communication . Keywords : Ubiquitous Sensor Network, Accelerometer, ZigBee,Elliptic Curve Menezes-Qu-Vanstone

Secure Ubiquitous Sensor Network based on Elliptic Curve MenezesQu Vanstoneas Status Data Supply of EnvironmentinDisaster Management