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A method and device for recovering exfat format based on hypothesis verification

A technology for hypothesis verification and recovery methods, applied in the computer field, which can solve problems such as file content errors and inaccurate recovery results.

Active Publication Date: 2018-07-03
XIAMEN MEIYA PICO INFORMATION
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Problems solved by technology

[0008] The existing exFAT format recovery technology uses the cluster start sector number and cluster size of the partition after formatting as the parameters of exFAT format recovery, but because the two parameters of the formatted cluster size and cluster start sector number are likely to Changes, and the location of the restored file content in the restoration process depends on these parameters, so directly using the parameters after formatting to restore will cause the problem of inaccurate restoration results
Although attribute information such as file name / size can be recovered, the content of the recovered file is wrong

Method used

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  • A method and device for recovering exfat format based on hypothesis verification
  • A method and device for recovering exfat format based on hypothesis verification
  • A method and device for recovering exfat format based on hypothesis verification

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Embodiment Construction

[0069] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0070] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0071] refer to figure 1 As shown, it is a flow chart of the exFAT format recovery method based on hypothesis verification, and the method includes the following steps:

[0072] S1. Obtain the cluster start sector num...

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Abstract

The invention belongs to the field of computers, and particularly relates to an exFAT formatting recovery method and device based on hypothesis and verification after exFAT partitioning formatting. According to the method, a most possible cluster start sector number and the cluster size are calculated through hypothesis and reverse verification to serve as recovery parameters, and the accuracy of a recovery result is guaranteed to the maximum extent. The method has the advantages that the defects existing in an existing exFAT formatting recovery technique are overcome, the recovery effect is greatly improved, and the method is an important supplement for exFAT obliterated data recovery.

Description

technical field [0001] The invention belongs to the field of computers, and in particular relates to an exFAT format recovery method and device based on hypothesis verification after an exFAT partition is formatted. Background technique [0002] exFAT, as an extended file system to FAT, is a file system that is very suitable for use on flash memory and is widely used on mobile storage media. The recovery of exFAT lost data has always been a focus of attention in the field of information security. The reasons for exFAT data loss can be mainly divided into two types, the first is accidental deletion or malicious deletion, and the second is mistaken formatting or malicious formatting. For the first case, the existing recovery technology is very mature and can achieve a good recovery effect. For the second case, the existing recovery technology uses some parameters after formatting as parameters in the data recovery process, and there is a situation that the recovered data is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/07
CPCG06F11/0727
Inventor 沈长达赵宪伟吴少华黄志炜申强
Owner XIAMEN MEIYA PICO INFORMATION
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