Light disk file system supportive of data privacy

Abstract

The invention discloses a light disk file system supportive of data privacy. The system comprises a light disk producing module, a light disk reading module and a light disk file system partition. The light disk producing module is used for producing modules in the light disk file system partition according to different formats. The light disk reading module is used for protecting confidential data of light disks, performing user identity authentication, cryptographing data and preventing the confidential data from unauthorized visits. The light disk file partition is composed of a visible-region module, a classified-region module and a parameter-region module. Plaintext data and ciphertext data are stored in the same file system in which conventional light disk file storage and confidential file storage for real-time protection of the confidential files are both realized; the system is compatible with all light disk readers; as bound with the confidential data, the light disk reading module cannot be deleted and changed, so that data reading obstacles caused by losses or damages of reading tools are avoided.

Description

technical field [0001] The invention relates to the technical field of computer and information security, in particular to an optical disc file system supporting data security. Background technique [0002] The optical disc file system is a file system dedicated to removable storage media such as CDs and DVDs, and ISO9660 is one of them. It is usually used for data management such as file archiving and data backup. However, the mobility of the optical disc media provides convenience for the use of the optical disc, but also causes security risks such as data leakage, and the data stored in the optical disc is easy to be copied. [0003] A technical scheme for disc data security is a special optical disc read-write device and a special optical disc file system. This scheme adopts a special-purpose optical disk file system and a special-purpose read-write device, and the data of the optical disk can only be read on the special-purpose read-write device, and the general-purpos...

AI Technical Summary

Problems solved by technology

This solution requires the installation of specific tools and software. The general-purpose CD and DVD readers cannot directly read the data on the disc. The version change will directly lead to the phenomenon that the disc data cannot be read

[0005] The common problem of the above two technical solutions is that the optical disk file system is all used to store ciphertext data, and there is no additional space to store plaintext data

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