CN112732649A - OFD document signing method, electronic device and medium - Google Patents
OFD document signing method, electronic device and medium Download PDFInfo
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- CN112732649A CN112732649A CN202011522051.2A CN202011522051A CN112732649A CN 112732649 A CN112732649 A CN 112732649A CN 202011522051 A CN202011522051 A CN 202011522051A CN 112732649 A CN112732649 A CN 112732649A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004590 computer program Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/174—Redundancy elimination performed by the file system
- G06F16/1744—Redundancy elimination performed by the file system using compression, e.g. sparse files
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses an OFD document signing method, electronic equipment and a medium. The method can comprise the following steps: step 1: reading a file list in the OFD file, and acquiring each file path; step 2: determining a file to be protected according to the file path; and step 3: establishing a signature file stream, performing data summarization on all files to be protected according to the reading length of the files to be protected, and inserting the summaries into the signature files; and 4, step 4: after updating the signature list file, the main entry file and the signature file, compressing and storing the signature list file, the main entry file and the signature file into an OFD file; and 5: and (4) performing summary and signature on the signature file, compressing and storing the signature data stream into the OFD file, and finishing one-time signature. The invention realizes the signature operation with high speed and high efficiency by directly abstracting and setting the thread according to the reading length.
Description
Technical Field
The present invention relates to the field of data processing, and more particularly, to an OFD document signing method, an electronic device, and a medium.
Background
The current OFD signature method mostly decompresses the OFD file into a folder and then processes the OFD file, and the read-write time influences the overall OFD signature time; the conventional OFD signature method mostly performs sequential summarization on files needing summarization, when large internal documents exist, summarization time is long, and even if summarization is performed in parallel, the size of the internal documents is not distinguished, parallel operation is performed uniformly, and computer resources are occupied.
Therefore, it is necessary to develop an OFD document signing method, an electronic apparatus, and a medium that improve the OFD signing speed.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides an OFD document signing method, electronic equipment and a medium, which can realize fast and efficient signing operation by directly abstracting and setting threads according to reading length.
In a first aspect, an embodiment of the present disclosure provides an OFD document signing method, including:
step 1: reading a file list in the OFD file, and acquiring each file path;
step 2: determining a file to be protected according to the file path;
and step 3: establishing a signature file stream, performing data summarization on all files to be protected according to the reading length of the files to be protected, and inserting the summaries into the signature files;
and 4, step 4: after updating the signature list file, the main entry file and the signature file, compressing and storing the signature list file, the main entry file and the signature file into the OFD file;
and 5: and performing abstract and signature on the signature file, compressing and storing a signature data stream into the OFD file, and finishing one-time signature.
Preferably, determining the file to be protected comprises:
and reading the files in the OFD file to an internal memory in sequence, reading the file name according to the file path, judging whether an abstract is needed, if so, classifying the files into the files to be protected, and if not, reading the next file.
Preferably, the step 3 comprises:
and judging whether the reading length is larger than a set threshold value, if so, creating a thread to perform data summarization on the file to be protected and insert the summary into the signature file, and if not, directly summarizing the file to be protected and inserting the summary into the signature file.
Preferably, the step 4 further comprises:
before updating the signature list file, judging whether the signature list file exists or not, if so, directly updating, and if not, updating after newly establishing the signature list file.
Preferably, updating the master entry file comprises:
and updating the main entry file and the abstract, and inserting the abstract into the signature file.
Preferably, updating the signature file comprises:
and updating the signature information of the signature file.
Preferably, the signature information includes a signature method and a signature time.
Preferably, steps 1-5 are repeated multiple times to complete multiple signatures.
As a specific implementation of the embodiments of the present disclosure,
in a second aspect, an embodiment of the present disclosure further provides an electronic device, including:
a memory storing executable instructions;
a processor executing the executable instructions in the memory to implement the OFD document signing method.
In a third aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the OFD document signing method.
The beneficial effects are that:
1. for the files needing the abstract, reading file data into an internal memory from the OFD file, directly abstracting, and saving the reading and writing time of the files without decompressing the OFD file into the files and reading the files;
2. and for the file data with the size smaller than the set value, directly abstracting the file data and inserting the abstract value into the signature file.
The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
FIG. 1 shows a flow diagram of the steps of an OFD document signing method according to one embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.
FIG. 1 shows a flow diagram of the steps of an OFD document signing method according to one embodiment of the present invention.
The invention provides an OFD document signing method, which comprises the following steps:
step 1: reading a file list in the OFD file, and acquiring each file path;
step 2: determining a file to be protected according to the file path;
and step 3: establishing a signature file stream, performing data summarization on all files to be protected according to the reading length of the files to be protected, and inserting the summaries into the signature files;
and 4, step 4: after updating the signature list file, the main entry file and the signature file, compressing and storing the signature list file, the main entry file and the signature file into an OFD file;
and 5: and (4) performing summary and signature on the signature file, compressing and storing the signature data stream into the OFD file, and finishing one-time signature.
In one example, determining the file to be protected includes:
reading files in the OFD file to an internal memory in sequence, reading file names according to file paths, judging whether an abstract is needed, if so, classifying the files into the files needing to be protected, and if not, reading the next file.
In one example, step 3 comprises:
and judging whether the reading length is greater than a set threshold value, if so, creating a thread to perform data summarization on the file to be protected and insert the summary into the signature file, and if not, directly summarizing the file to be protected and inserting the summary into the signature file.
In one example, step 4 further comprises:
before updating the signature list file, judging whether the signature list file exists, if so, directly updating, and if not, updating after newly establishing the signature list file.
In one example, updating the master portal file includes:
and updating the main entry file and the abstract, and inserting the abstract into the signature file.
In one example, updating the signature file includes:
and updating the signature information of the signature file.
In one example, the signature information includes a signature method, a signature time.
In one example, steps 1-5 are repeated multiple times, completing multiple signatures.
Specifically, the OFD document signing method according to the present invention includes:
step 1: reading a file list in the OFD file, determining the number of compressed files, and acquiring each file path;
step 2: determining a file to be protected according to the file path: reading files in the OFD file to an internal memory in sequence, reading file names according to file paths, judging whether an abstract is needed, if so, classifying the files into the files needing to be protected, and if not, reading the next file;
and step 3: establishing a signature file stream, judging whether the reading length is larger than a set threshold value or not according to the reading length (namely the size of the file) of the file to be protected, if so, establishing a thread to perform data summarization on the file to be protected and insert the summary into the signature file (signature.xml), and if not, directly summarizing the file to be protected and inserting the summary into the signature file; during summarization, files needing to be protected do not need to be decompressed into files and read, but are directly summarized, so that the reading and writing time of the files is saved;
and 4, step 4: updating a signature list file (signatures. xml), before updating, judging whether the signature list file exists, if so, directly updating, and if not, updating after newly creating the signature list file; xml, updating the main entry file (ofd) and the digest, and inserting the digest into the signature file; after updating the information of signature method, signature time and the like of the signature file, compressing and storing the updated signature file, signature list file and main entry file into an OFD file;
and 5: and (4) performing summary and signature on the signature file, compressing and storing the signature data stream into the OFD file, and finishing one-time signature.
Repeating the steps 1-5 for multiple times to finish multiple signatures.
The present invention also provides an electronic device, comprising: a memory storing executable instructions; and the processor runs the executable instructions in the memory to realize the OFD document signing method.
The present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the OFD document signing method described above.
To facilitate understanding of the solution of the embodiments of the present invention and the effects thereof, three specific application examples are given below. It will be understood by those skilled in the art that this example is merely for the purpose of facilitating an understanding of the present invention and that any specific details thereof are not intended to limit the invention in any way.
Example 1
Step 1: reading a file list in the OFD file, determining the number of compressed files, and acquiring each file path;
step 2: determining a file to be protected according to the file path: reading files in the OFD file to an internal memory in sequence, reading file names according to file paths, judging whether an abstract is needed, if so, classifying the files into the files needing to be protected, and if not, reading the next file;
and step 3: establishing a signature file stream, judging whether the reading length is larger than a set threshold value or not according to the reading length (namely the size of the file) of the file to be protected, if so, creating a thread to perform data summarization on the file to be protected and insert the summary into signature. During summarization, files needing to be protected do not need to be decompressed into files and read, but are directly summarized, so that the reading and writing time of the files is saved;
and 4, step 4: updating signatures.xml, before updating, judging whether the signatures.xml exists, if so, directly updating, and if not, updating after newly building the signatures.xml; updating OFD.xml and abstracting, and inserting the abstract into signature.xml; after information such as signature method and signature time of signature is updated, compressing and storing the updated signature, signature and xml and OFD.xml into an OFD file;
and 5: and (4) abstracting and signing the signature, compressing and storing the signed data stream into an OFD (office file) file, and finishing one-time signing.
Repeating the steps 1-5 for multiple times to finish multiple signatures.
Example 2
The present disclosure provides an electronic device including: a memory storing executable instructions; and the processor runs the executable instructions in the memory to realize the OFD document signing method.
An electronic device according to an embodiment of the present disclosure includes a memory and a processor.
The memory is to store non-transitory computer readable instructions. In particular, the memory may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, Random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, Read Only Memory (ROM), hard disk, flash memory, etc.
The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of the disclosure, the processor is configured to execute the computer readable instructions stored in the memory.
Those skilled in the art should understand that, in order to solve the technical problem of how to obtain a good user experience, the present embodiment may also include well-known structures such as a communication bus, an interface, and the like, and these well-known structures should also be included in the protection scope of the present disclosure.
For the detailed description of the present embodiment, reference may be made to the corresponding descriptions in the foregoing embodiments, which are not repeated herein.
Example 3
The disclosed embodiments provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the OFD document signing method.
A computer-readable storage medium according to an embodiment of the present disclosure has non-transitory computer-readable instructions stored thereon. The non-transitory computer readable instructions, when executed by a processor, perform all or a portion of the steps of the methods of the embodiments of the disclosure previously described.
The computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROMs and DVDs), magneto-optical storage media (e.g., MOs), magnetic storage media (e.g., magnetic tapes or removable disks), media with built-in rewritable non-volatile memory (e.g., memory cards), and media with built-in ROMs (e.g., ROM cartridges).
It will be appreciated by persons skilled in the art that the above description of embodiments of the invention is intended only to illustrate the benefits of embodiments of the invention and is not intended to limit embodiments of the invention to any examples given.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An OFD document signing method is characterized by comprising the following steps:
step 1: reading a file list in the OFD file, and acquiring each file path;
step 2: determining a file to be protected according to the file path;
and step 3: establishing a signature file stream, performing data summarization on all files to be protected according to the reading length of the files to be protected, and inserting the summaries into the signature files;
and 4, step 4: after updating the signature list file, the main entry file and the signature file, compressing and storing the signature list file, the main entry file and the signature file into the OFD file;
and 5: and performing abstract and signature on the signature file, compressing and storing a signature data stream into the OFD file, and finishing one-time signature.
2. The OFD document signing method of claim 1, wherein determining the file to be protected comprises:
and reading the files in the OFD file to an internal memory in sequence, reading the file name according to the file path, judging whether an abstract is needed, if so, classifying the files into the files to be protected, and if not, reading the next file.
3. The OFD document signing method of claim 1, wherein said step 3 comprises:
and judging whether the reading length is larger than a set threshold value, if so, creating a thread to perform data summarization on the file to be protected and insert the summary into the signature file, and if not, directly summarizing the file to be protected and inserting the summary into the signature file.
4. The OFD document signing method of claim 1, wherein said step 4 further comprises:
before updating the signature list file, judging whether the signature list file exists or not, if so, directly updating, and if not, updating after newly establishing the signature list file.
5. The OFD document signing method of claim 1, wherein updating said master entry file comprises:
and updating the main entry file and the abstract, and inserting the abstract into the signature file.
6. The OFD document signing method of claim 1, wherein updating said signature file comprises:
and updating the signature information of the signature file.
7. The OFD document signing method of claim 6, wherein said signing information comprises signing method, signing time.
8. The OFD document signing method of claim 1, wherein steps 1-5 are repeated a plurality of times to complete a plurality of signatures.
9. An electronic device, characterized in that the electronic device comprises:
a memory storing executable instructions;
a processor executing the executable instructions in the memory to implement the OFD document signing method of any one of claims 1-8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the OFD document signing method of any one of claims 1 to 8.
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| CN202011522051.2A CN112732649B (en) | 2020-12-21 | 2020-12-21 | OFD document signing method, electronic equipment and medium |
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| CN202011522051.2A CN112732649B (en) | 2020-12-21 | 2020-12-21 | OFD document signing method, electronic equipment and medium |
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| CN112732649B CN112732649B (en) | 2024-03-12 |
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| CN111897776A (en) * | 2020-06-22 | 2020-11-06 | 百望股份有限公司 | OFD document processing method, electronic device and computer-readable storage medium |
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