File anonymization method and apparatus, and storage medium
The present disclosure provides a method, an apparatus, and a storage medium for file anonymization. The method is performed by a storage device. The method includes: receiving a file read command sent by a host, where the file read command is used to request a to-be-read file, the to-be-read file comprises a plurality of data blocks; obtaining the to-be-read file in response to the file read command, where the plurality of data blocks in the to-be-read file comprises one or more first data blocks that do not have anonymization processing performed thereon and one or more second data blocks that have anonymization processing completed thereon; performing anonymization processing on a first data block in the to-be-read file; and sending, to the host, the to-be-read file on which anonymization processing is completed.
1 . A method for file anonymization, performed by a storage device, the method comprising:
receiving a file read command sent by a host, wherein the file read command is used to request a to-be-read file, the to-be-read file comprises a plurality of data blocks;
obtaining the to-be-read file in response to the file read command, wherein the plurality of data blocks in the to-be-read file comprises one or more first data blocks that do not have anonymization processing performed thereon and one or more second data blocks that have anonymization processing completed thereon;
performing anonymization processing on a first data block in the to-be-read file; and
sending, to the host, the to-be-read file on which anonymization processing is completed.
2 . The method according to claim 1 , further comprising:
storing the to-be-read file on which anonymization processing is completed in a hard disk of the storage device.
3 . The method according to claim 1 , further comprising:
obtaining a bitmap of the to-be-read file, wherein the bitmap indicates whether anonymization processing is completed on each data block of the plurality of data blocks comprised in the to-be-read file; and
identifying, based on the bitmap, the first data block in the to-be-read file.
4 . The method according to claim 3 , further comprising:
modifying, in the bitmap, a flag bit corresponding to a data block of the plurality of data blocks, to indicate that anonymization processing is completed on the particular data block.
5 . The method according to claim 1 , wherein the to-be-read file comprises an anonymization mark, and the anonymization mark indicates whether anonymization processing is completed on the to-be-read file; and
the method further comprises:
before performing the anonymization processing on the first data block in the to-be-read file, determining, based on the anonymization mark, that the to-be-read file is a file on which anonymization processing is not completed.
6 . The method according to claim 5 , further comprising:
modifying the anonymization mark of the to-be-read file on which anonymization processing is completed, to indicate that anonymization processing is completed on the to-be-read file.
7 . The method according to claim 1 , wherein the anonymization processing on the one or more second data blocks in the to-be-read file is completed through offline anonymization.
8 . The method according to claim 1 , wherein the to-be-read file comprises at least one of a text file, a report file, a picture file, an audio file, or a video file.
9 . An apparatus for file anonymization, comprising:
a processor; and
a memory, configured to store processor executable instructions,
wherein the processor is configured to:
receive a file read command sent by a host, wherein the file read command is used to request a to-be-read file, the to-be-read file comprises a plurality of data blocks;
obtain the to-be-read file in response to the file read command, wherein the plurality of data blocks in the to-be-read file comprises one or more first data blocks that do not have anonymization processing performed thereon and one or more second data blocks that have anonymization processing completed thereon;
perform anonymization processing on a first data block in the to-be-read file; and
send, to the host, the to-be-read file on which anonymization processing is completed.
10 . The file anonymization apparatus according to claim 9 , wherein the processor is further configured to store the to-be-read file on which anonymization processing is completed in a hard disk of the storage device.
11 . The file anonymization apparatus according to claim 9 , wherein the processor is further configured to:
obtain a bitmap of the to-be-read file, wherein the bitmap indicates whether anonymization processing is completed on each data block of the plurality of data blocks comprised in the to-be-read file; and
identify, based on the bitmap, the first data block in the to-be-read file.
12 . The file anonymization apparatus according to claim 11 , wherein the processor is further configured to:
modify, in the bitmap, a flag bit corresponding to a data block of the plurality of data blocks, to indicate that anonymization processing is completed on the particular data block.
13 . The file anonymization apparatus according to claim 9 , wherein the to-be-read file comprises an anonymization mark, and the anonymization mark indicates whether anonymization processing is completed on the to-be-read file, and wherein before performing the anonymization processing on the first data block in the to-be-read file, the processor is further configured to:
determine, based on the anonymization mark, that the to-be-read file is a file on which anonymization processing is not completed.
14 . The file anonymization apparatus according to claim 13 , wherein the processor is further configured to:
modify the anonymization mark of the to-be-read file on which anonymization processing is completed, to indicate that anonymization processing is completed on the to-be-read file.
15 . The file anonymization apparatus according to claim 9 , wherein the anonymization processing on the one or more second data blocks in the to-be-read file is completed through offline anonymization.
16 . The file anonymization apparatus according to claim 9 , wherein the to-be-read file comprises at least one of a text file, a report file, a picture file, an audio file, or a video file.
17 . A non-transitory computer-readable storage medium, storing computer-executable instructions, wherein the instructions, when executed, cause one or more processors to perform:
receiving a file read command sent by a host, wherein the file read command is used to request a to-be-read file, the to-be-read file comprises a plurality of data blocks;
obtaining the to-be-read file in response to the file read command, wherein the plurality of data blocks in the to-be-read file comprises one or more first data blocks that do not have anonymization processing performed thereon and one or more second data blocks that have anonymization processing completed thereon;
performing anonymization processing on a first data block in the to-be-read file; and
sending, to the host, the to-be-read file on which anonymization processing is completed.
18 . The non-transitory computer-readable storage medium according to claim 17 , wherein the instructions, when executed, cause the one or more processors to further perform:
enabling the storage device to store the to-be-read file on which anonymization processing is completed in a hard disk of the storage device.
19 . The non-transitory computer-readable storage medium according to claim 17 , wherein the instructions, when executed, cause the one or more processors to further perform:
obtaining a bitmap of the to-be-read file, wherein the bitmap indicates whether anonymization processing is completed on each data block of the plurality of data blocks comprised in the to-be-read file; and
identifying, based on the bitmap, the first data block in the to-be-read file.
20 . The non-transitory computer-readable storage medium according to claim 17 , wherein the anonymization processing on the one or more second data blocks in the to-be-read file is completed through offline anonymization.