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SSD data protection method and system

A technology for data protection and target data, applied in the field of data security, it can solve the problems of low data security and illegal access to user data, and achieve the effect of ensuring security and improving security.

Inactive Publication Date: 2019-04-09
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Among them, the above-mentioned U_PWD and U_KEY are stored in plain text on NAND, which can be illegally obtained and used for unprotected user data access, and the data security is low

Method used

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  • SSD data protection method and system
  • SSD data protection method and system
  • SSD data protection method and system

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Embodiment Construction

[0055] In order to illustrate the idea and purpose of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative relationship between the components in a certain posture (a...

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PUM

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Abstract

The invention discloses an SSD data protection method and system. The method comprises the following steps: enabling SSD firmware to load prestored abstract information H from NAND; Receiving an inputpassword d; Performing Hash calculation by using the private information of the SSD firmware and the input password d, and outputting calculated abstract information h; Judging whether the abstract information H is equal to the abstract information h or not; If not, refusing to access the target data; And if yes, allowing access to the target data. According to the scheme, the access password D and the key e are not directly stored in the NAND in a plaintext form; Private information and an access password of SSD firmware are used for mixing, and a Hash algorithm is used for converting the private information and the access password into abstract information H; The secret key e is encrypted and converted into the secret key information E through the access secret key D, the original access password D cannot be obtained by obtaining the abstract information H and the secret key information E in the NAND, the secret key e cannot be obtained, the user data safety is improved, and the data safety is guaranteed.

Description

technical field [0001] The present invention relates to the field of data security, in particular to an SSD data protection method and system. Background technique [0002] SSD (Solid State Drive) has been widely used in various occasions, and is gradually replacing traditional hard drives due to its excellent performance, power consumption, and environmental adaptability. [0003] For SSD, the security of user data is a very important topic. The written data is generally encrypted inside the existing SSD, and an access password is also set at the same time to avoid illegal user access. These are no problem for ordinary user data protection, but for the user's disk, the original manufacturer / technical enthusiasts may still have some special means to crack, so as to restore the password / key, or bypass it. For some scenarios with relatively high security requirements, this will cause a great risk of data leakage. [0004] as attached figure 1 As shown, the existing SSD typ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/80G06F21/60
CPCG06F21/602G06F21/80
Inventor 王猛徐伟华
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD