Design And Implementation Of Secure Disk System Based On PKI

As a new network service, network hard disk aiming at the needs of data management and sharing in Internet solves the inadequate of traditional information interaction and meets the user’s demand, local virtual disk provides local file access by the way of virtual disk. However, network hard disk and local virtual disk face serious security risks which restrict the application of the network hard disk and local virtual disk, service providers do not provide complete solutions and do not release secure network hard disk services until now.Providing authentication and content security is an important part of secure network hard disk system and local virtual disk system, this thesis comes from the security of network hard disk and local virtual disk, analysis the user’s secure demands and windows file system, design and implement online authentication secure network hard disk system and local virtual disk system based on PKI, which realize authentication by applying PKI framework, realize transmission security by applying cryptography, realize storage security by applying file cryptography and decryptography. The paper introduces the implementation of network hard disk based on ASP.NET, describes the principle of windows kernel model and file system drivers, summaries the cryptographic technique and PKI framework, presents the framework, mechanism and key technique of the designed secure network hard disk system. The experiments show that the designed secure network hard disk is effective and feasible. This thesis also designs and implements online authentication secure virtual disk system based on PKI which realize authentication and rights management by applying PKI and tag mechanism, realize content security by applying cryptography. The model, secure mechanism and essential technique are introduced.The thesis combines with the practical project, comprehensive applies cryptographic techniques and windows file system filter driver technology to build a secure network hard disk system with some practical value.