Research And Implementation Of Key Management In Distributed Secure Storage Systems

With the rapid development of network technology and storage technology, more andmore data is stored and shared on the network, but at the same time the security threatsfaced by the data are also increasing,The importance of storage security has becomeincreasingly prominent.It is found that current security policy implementation focuses basically on ensureconfidentiality, integrity, availability that these traditional security by analyzing theexisting distributed storage system’s security mechanisms and implementationmethods.However, in a distributed environment, wo face the difficulty that complexnetwork structure, heterogeneous storage cluster, and high concurrent customers, there aremany shortcomings that the complexity of key management,the vulnerability of securemanagement and large impact on system performace. so flexible and efficient keymanagement strategy and secure management mechanism is an important factor toimprove the efficiency of secure storeage systems.for existing distributed secure storage systems security management is imperfect, andkey management methods can not meet the requirements of security, flexibility andefficiency.This paper presents a distributed storage security solutions whilch introduceacredible security management server and key server. we implement a flexible accesscontrol policy and a safe and convenient data sharing by certificates and file groups. aseparate key server provides secure key management strategies, a unified securitymanagement interface allows users and administrators to manage daily security operations.we also implement the storage system’s real-time monitoring and statistics to track userbehavior by audit log.Thesis’s objective is to achieve efficient distributed secure storage systems，To ensuredata security and efficient storage and access. The experiments shows that random readand write performance drop24%and29%,It means that security mechanisms have littleeffect on overall system efficiency in distributed storage systems.