Storage security solution to air-borne information system
Lin Xiao-cha · Journal of Beijing Information Science & Technology University · 2012
Air-borne information system has special requirements due to the special environment it applies.The storage of the information both demands reliability and confidential under urgent situations.On the aspect of information storage,Wear-leveling algorithm is developed assuring the equal usage of all storage units in the storage media so as to prevent the media from damaging;BBM(Bad Block Management) algorithm is developed to avoid further use of damaged storage unit;ECC(Error Checking and Correcting) is developed to guarantee the reading/writing operation of the storage unit and Power Fail Safeguard is developed to protect the data from unprecedented failure of the power system.On the aspect of keeping confidential information,a wiping-out procedure will be undergone when emergency approaches isolating the information from rivals and enemies.According to the confidential degree and wiping-out time requirements,4 modes which called Basic Purge、Rapid Purge、MilPure and Intelligent Destructive Purge are available for the purpose.