Research And Design Of Anti-Compromised Solid State Storage System

Now the situation of information security is becoming increasingly rigorous. Data protection has been upgraded from the system level down to the hard disk level. Therefore, managing the data security in disk actively or defense it passively has become a new research direction. However, when the laptop or Mobile hard disk is lost, there has not been an effective way to confirm the status of the data, which becomes the bottleneck of the development of the data security.In this thesis, an anti-compromised solid state storage system is designed and implemented based on the technology of one time password. Moreover, a novel solution for data security is proposed. The system can generate and check the one time password, and distinguish the abnormal state. Then, according to SSD' state, distinct response solutions will be executed automatically. As a result, the designed system can destroy the data in lost disk completely, and thus will improve the security classification and reliability of data carrier.This research analyses the system architecture and system requirements of anti-compromised solid state storage, research the key technologies: the blue tooth, one time password, complete data erasing. According to the analysis of technical requirements, an improved MD5 algorithm is proposed initially to improve system security. Secondly, a blue tooth module is embedded into SSD employing the blue tooth chip NRF51822. Based on the blue tooth module, the communication between SSD, administration software, and the token is realized. Thirdly, employing flash wipe technology and an optical circuit, the function of data delete in grain and anti-disassembling is realized. Fourthly, an administration software of anti-compromised solid state storage system is designed to manage the information of SSD, the token and users, configure the setting parameters of SSD and the token, and make a decision on protecting the SSD or not. Fifthly, the token was established on android develop environment to produce one time password and check the SSD safe or not. After implementation of all the core modules, all the system functions are tested with results demonstrating that the designed system has achieved the expected aims and characteristics.Finally, the novel work of this thesis is briefly summarized. Meanwhile, a prospect and planning for the future work is proposed.