Office management system based on trusted timestamp and digital signature file list suite

Abstract

The invention relates to the technical field of office management systems, and discloses an office management system based on trusted timestamps and digital signature file list suite. The office management system based on the trusted timestamp and the digital signature file single suite comprises three service stages of electronic document forming and handling, electronic document filing management and electronic file transfer and receiving, and covers a series of process links and operation steps. Transformation is carried out based on an original collaborative office system. According to the office management system based on the credible timestamp and digital signature file single set, in order to prevent data tampering, signature verification is carried out in the stages of forming, handling, filing, transferring and receiving of electronic official documents and files through the credible timestamp and digital signature technology, data tampering is effectively prevented, the authenticity and integrity of the data are guaranteed, and the work efficiency is improved. And the file is always accurate and reliable due to multiple signatures in an archiving link.

Description

Technical Field

[0001] The invention relates to the technical field of office management, in particular to an office management system based on a single set of trusted time stamp and digital signature archives. Background Art

[0002] With the rapid development of information technology and the popularization of digital office, the management of electronic documents and archives faces many challenges. The traditional paper document management method is inefficient, costly, and difficult to meet the needs of rapid information transmission and sharing. At the same time, problems such as electronic documents are easily tampered with and data security is difficult to ensure are becoming increasingly prominent. Against this background, a single-set archive office management system based on trusted timestamps and digital signatures came into being. Trusted timestamp technology can provide accurate and tamper-proof time proof to ensure the time accuracy of electronic documents and archives at each operation node. Digital signature technology ensures the reliability of the source of the document and the integrity of the content to prevent data from being forged or tampered with.

[0003] However, in the actual use of the above-mentioned equipment, the original collaborative office system and digital archive management system have deficiencies in functions and interfaces, and cannot adapt to the needs of full-process management of electronic documents and archives. Therefore, these systems are targeted for transformation so that they can realize the formation and processing of electronic documents, archiving management, and transfer and acceptance of electronic archives in accordance with standard specifications. At the same time, a series of strict standard specifications are formulated, covering single-set support specifications for trusted timestamps, single-set management specifications for digital archives, etc., to provide clear guidance and constraints for the construction and operation of the system, ensure the standardization, stability and security of the system, and provide solid technical support for the management of electronic documents and archives through the comprehensive application of these technical means and specifications.

[0004] Therefore, we propose an office management system based on a single set of trusted timestamp and digital signature archives. Summary of the invention

[0005] The purpose of the present invention is to provide an office management system based on a single set of trusted timestamp and digital signature archives to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An office management system based on a single set of trusted timestamps and digital signature archives includes three business stages: electronic document generation and processing, electronic document archiving management, and electronic archive transfer and reception, covering a series of process links and operation steps.

[0007] In the electronic document generation and processing stage, based on the original collaborative office system, the electronic document issuance and receipt processes are transformed in accordance with the core business process "electronic document generation and processing stage" and the system construction requirements of relevant standards and specifications to achieve the following functions: It supports the formation of electronic files and their components in accordance with the requirements of electronic archive formats. The original, final version, official document processing form, etc. of electronic document files are archived and saved in OFD, PDF and other formatted document formats, and the revised drafts are archived and saved in WPS, RTF, DOC and other formats. The electronic document format of party and government agencies complies with the requirements of GB / T33476 (all parts).

[0008] It supports the automatic collection of metadata of key nodes in the process of electronic document formation and circulation, and forms standardized structured data.

[0009] Support the organization and testing of electronic documents in accordance with regulations after the electronic documents are processed or the business process is completed.

[0010] Supports automatic or semi-automatic archiving identification, classification and storage period.

[0011] It supports the generation of archive information packages containing electronic files and their metadata. The archive information packages do not contain non-open technical measures such as compression, encryption, signatures, seals, timestamps, etc., and are archived online to the electronic archive management system in accordance with the procedure requirements.

[0012] Supports graphical conversion of electronic signatures.

[0013] Supports trusted timestamp signatures for key metadata and file information of electronic files to ensure data security and reliability.

[0014] Preferably, in the electronic document archiving management stage, a single-set system transformation is carried out based on the original digital archive management system, and in accordance with the core business process "electronic document archiving management stage, electronic archive transfer and acceptance stage" and the system construction requirements of relevant standards and specifications, the interface between the digital archive room system and the collaborative office system is transformed, and the "four properties" detection of electronic document archiving management, long-term archive preservation, and electronic archive transfer and acceptance process is strengthened to achieve trusted timestamp signatures for archive management data in key stages and trusted verification of archive data.

[0015] Preferably, the above also includes the construction of a trusted timestamp service system. The trusted timestamp service platform is built based on the national secret algorithm, and can create accurate and trustworthy time service products for government agencies and enterprises and institutions. It establishes a connection with an authoritative timing agency to obtain a trusted time source. This method can effectively ensure that when the system processes data, the operation behavior at a specific time is trustworthy, and lays a solid non-repudiation foundation for the system's data processing from the time dimension. The trusted timestamp service platform covers four functional modules: time synchronization service, timestamp signature service, timestamp storage service and timestamp management service, thereby realizing a series of important operations such as signing, encryption, storage and management of electronic data. The timestamp signature service is responsible for receiving timestamp requests, strictly verifying the legitimacy of the requests, and is responsible for generating and issuing timestamps. The core task of the timestamp storage service is to store the result data of the timestamp signature.

[0016] The built trusted timestamp service system has many remarkable features: In terms of security and reliability, the system strictly follows the national cryptographic algorithm standards such as SM2 cryptographic algorithm, SM3 digest algorithm and SM4 symmetric algorithm issued by the State Cryptography Administration, which effectively ensures the security and credibility of digital signatures. In terms of the accuracy of time synchronization, the system can maintain smooth communication with the time source approved by the national authority, successfully obtain the trusted time and achieve synchronization, effectively guaranteeing the authenticity and credibility of the issuance time, and greatly improving the accuracy and reliability of time information. In terms of functional modules, the system shows strong advantages. It includes four components: time synchronization service, timestamp signature service, timestamp storage service and timestamp management service. It comprehensively covers the full range of needs from time synchronization to timestamp signature, and then to data storage and management, forming a complete and efficient service system. In terms of compliance, the system fully complies with relevant national laws, regulations and technical standards, fully meets the compliance requirements of government agencies and enterprises and institutions in the data processing process, and effectively avoids potential legal risks and technical loopholes. In terms of improving business efficiency, the system carefully provides a simple and easy-to-use management interface. This design greatly facilitates user operation and management, significantly saves time costs, and improves work efficiency and management effectiveness. In terms of traceability and non-repudiation, the system provides a key function of trusted timestamp to ensure the authenticity, integrity and traceability of data. It also provides a strong foundation for non-repudiation and effectively maintains the credibility and authority of the data. In terms of audit and evidence support, the system's timestamp storage service can properly preserve data related to timestamps. This feature facilitates future query, audit and evidence operations, and provides a reliable basis and support for data review and traceability.

[0017] Preferably, the above also includes standard specification construction, which is as follows: (1) Trusted timestamp single set support specifications: The trusted timestamp construction specification covers the entire process of trusted timestamp construction, startup, and management, and institutionally guarantees the safe, reliable, and stable operation of the entire trusted timestamp system.

[0018] The trusted timestamp access specification defines the application process specifications, technical standards and usage restrictions for access by relevant units.

[0019] The trusted timestamp system service interface specification stipulates the application interface standards such as permission management, data exchange, data query and application support of the trusted timestamp system. It includes two parts: technical requirements and interface message specifications. The technical requirements standardize the technical requirements for the interconnection and interoperability of various information systems, and the interface message specifications define the exchange data format, data type, expression method, etc.

[0020] (2) Management standards for single-set digital archives: The specifications for archiving single sets of electronic documents and managing single sets of electronic archives clearly support the specific requirements for managing single sets of archives from the perspective of the entire life cycle process of electronic document generation and electronic archive management.

[0021] The archive interface specification of the collaborative office system for single-set archive management specifies the data exchange specification for archiving electronic documents of the collaborative office system to the digital archive management system under the support of trusted timestamp technology.

[0022] The operation and management specifications of the collaborative office system for single-set archive management form business specifications that support single-set management from the perspective of collaborative office system document sending and receiving management.

[0023] The trusted timestamp interface specification for single-set archive management specifies the data exchange specifications for digital signature and data verification between archive management system data and trusted timestamp system under the support of trusted timestamp technology.

[0024] Preferably, in the archiving link of the electronic document archiving management stage, the electronic document metadata and electronic files are received online through the electronic document archiving interface, the received electronic document is tested for four properties, the trusted timestamp interface is called to verify the authenticity and integrity of the metadata and electronic files, and then the electronic document is intelligently classified and numbered, and finally stamped with an archiving stamp. When stamping, the stamped file is checked once through the trusted timestamp to ensure that the stamped file is correct, the electronic file with the archiving stamp inserted is signed with a trusted timestamp, the electronic document-related metadata and electronic files are packaged to generate an electronic archive package, and the electronic archive package is signed with a trusted timestamp.

[0025] Preferably, in the management link of the electronic document archiving management stage, the management of electronic documents in the digital archive system is mainly demarcation and control identification work. Relevant metadata is generated during demarcation and control identification, and the generated metadata is signed with a trusted timestamp. For electronic archives that need to be destroyed, the operation is synchronously signed with a trusted timestamp through the electronic archive destruction process. At the same time, the business stage from the formation and processing of electronic documents to archiving is taken as the life cycle, and the relevant metadata information is stored on the trusted timestamp server. The trusted timestamp provides a corresponding interface so that business personnel can complete the traceability operation of the archives in the archive system, ensuring that the business process of each electronic document archive is authentic and traceable.

[0026] Preferably, in the utilization link of the electronic document archiving management stage, in the archive system, electronic documents can be searched according to title, document number, date of writing, etc., and the electronic document directory data can be queried. If the original text of the retrieved non-public electronic document is needed, a borrowing application must be initiated, and the original text of the electronic document can be browsed after approval by the relevant responsible person.

[0027] Preferably, the electronic archive transfer and reception stage can be defined as the process of transferring electronic documents from the archive room to the municipal archives. This process is mainly completed in the digital archive system. The trusted timestamp system provides corresponding verification and trusted timestamp signature services to ensure the archive verification and metadata trusted timestamp signature requirements in the business process, ensuring the consistency and traceability of the data.

[0028] Preferably, in the electronic archive transfer and acceptance stage, the transfer link is completed by the digital archive room, and the digital archive system generates the transfer-related information and transfer directory file in the "Electronic Archive Transfer and Acceptance Registration Form", and signs the relevant data with a trusted timestamp; the receiving link is completed by the digital archives, and the digital archives receives the "Electronic Archive Transfer and Acceptance Registration Form" and the transfer directory file online from the digital archives, and obtains the electronic archive package, performs four-property detection, and calls the trusted timestamp service related interface to complete the authenticity and integrity detection. After the detection passes, the archived electronic documents are received, the "Electronic Archive Transfer and Acceptance Registration Form" is updated, and the updated "Electronic Archive Transfer and Acceptance Registration Form" is signed with a trusted timestamp.

[0029] Preferably, the various business stages and links have the ability to achieve effective data interaction and information sharing. By establishing an efficient and stable data transmission and sharing mechanism, data can be smoothly transmitted and information can be exchanged between different business stages and links. The data generated and collected in the process of electronic document generation can be smoothly transmitted to various links of electronic archive management, providing accurate and complete basic information for subsequent archive management. At various stages of electronic archive management, including archiving, storage, utilization and transfer, the management data and information generated can also be fed back to the electronic document generation stage in a timely manner, providing reference and basis for the optimization and improvement of documents. This effective data interaction and information sharing mechanism can enable various business stages and links to work closely together and support each other, thereby jointly achieving efficient operation of electronic document generation and electronic archive management.

[0030] Compared with the prior art, the present invention provides an office management system based on a single set of trusted timestamp and digital signature archives, which has the following beneficial effects: 1. This office management system based on a single set of trusted timestamps and digital signature archives, in order to prevent data tampering, is equipped with trusted timestamps and digital signature technology to perform signature verification at each stage of the formation, handling, filing, and transfer of electronic documents and archives, effectively preventing data tampering and ensuring its authenticity and integrity. For example, multiple signatures in the filing process ensure that the files are always accurate and reliable.

[0031] 2. This office management system based on a single set of trusted timestamps and digital signature archives is built to better comply with strict standards and specifications, so that each operation has rules to follow and the standardization of management is guaranteed. By setting up applications with trusted timestamps, it provides accurate time records for the generation and changes of data, forming a complete traceability chain. Whether in the demarcation and identification of archive management, destruction operations, or information registration and updating during the transfer and acceptance process, it provides strong support for responsibility identification and problem troubleshooting.

[0032] 3. This office management system based on a single-set archive system with trusted timestamps and digital signatures has greatly reduced manual intervention in order to achieve automated and intelligent processes. It saves a lot of manpower and time by setting up automatic archiving identification, classification and storage period determination. The online processing and transmission of electronic documents and archives avoids the cumbersome circulation of paper documents and speeds up the business process. At the same time, single-set management reduces the consumption of resources such as paper and storage devices, and reduces office costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of an overall process module of the present invention; Figure 2It is a schematic diagram of the overall structure of an office management system of the present invention; Figure 3 It is a structural schematic diagram of the electronic document generation and processing module of the present invention; Figure 4 This is a structural diagram of the electronic document archiving management module of the present invention; Figure 5 This is a structural diagram of the electronic file transfer receiving module of the present invention; Figure 6 It is a structural schematic diagram of the standard specification construction module of the present invention; Figure 7 It is a structural schematic diagram of the trusted timestamp service platform module of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 - Figure 7 , the present invention provides a technical solution: An office management system based on a single set of trusted time stamp and digital signature archives.

[0036] In one embodiment of the present invention, at the stage of electronic document formation and processing, the document issuance and receipt processes of the collaborative office system are first deeply optimized, and the format requirements of electronic files are clearly specified. For example, the original, final version, document processing form, etc. of electronic documents must be generated in standard format document formats such as OFD and PDF, and the revised process drafts are uniformly in WPS, RTF, DOC and other formats. When the file circulates in the system, the metadata of key nodes are collected in real time using automated tools, including the time of issuance, author, approval process, etc., and these metadata are organized into standardized structured data. After the file is processed, the system automatically starts the organization and detection program to conduct a comprehensive check on the format and content integrity of the file. At the same time, according to preset rules, the archiving identification, classification and storage period are automatically or semi-automatically determined to ensure that each electronic document can be accurately processed and classified.

[0037] In one embodiment of the present invention, in the electronic document archiving management stage, the interface of the digital archive room system and the collaborative office system is seamlessly connected. When the electronic document enters the archiving link, the system automatically receives metadata and electronic files through the archiving interface, and then starts the four-property detection, and uses the trusted timestamp interface to strictly verify the authenticity and integrity of the file. After the verification, the system intelligently classifies and numbers the electronic documents according to the preset classification rules, and stamps them with archiving stamps. During the stamping process, the trusted timestamp technology is used to check the files again. After ensuring that there are no errors, the electronic files with the archiving stamps inserted are signed, and the relevant metadata and electronic files are packaged into an electronic archive package, and the trusted timestamp signature is also performed. In the management link, the metadata generated by the demarcation and control identification and the electronic archive operations that need to be destroyed are promptly signed with trusted timestamps, and the relevant metadata information is stored on the server to provide a reliable basis for subsequent tracing and management.

[0038] In one embodiment of the present invention, S1: The collaborative office system transformation in the electronic document formation and processing stage is based on the original collaborative office system and is transformed in accordance with the requirements of the "electronic document formation and processing stage" to achieve a series of functions, including support for the formation of electronic files in specific formats and component preservation, automatic collection of metadata at key nodes, electronic file organization and detection, archiving and identification, generation of archive information packages, graphical conversion of electronic signatures, and trusted timestamp signatures.

[0039] S2: Transformation of the digital archive management system in the electronic document archiving management stage. Based on the original digital archive management system, a single-set system is transformed, with a focus on interface transformation, strengthening the "four properties" detection, and realizing trusted timestamp signatures and data trustworthiness verification in key stages, including the receipt, detection, classification, stamping, packaging and signature in the archiving link, the demarcation and identification, destruction operation signature and archive traceability in the management link, and retrieval and borrowing in the utilization link.

[0040] S3: Construction of a trusted timestamp service system. A trusted timestamp service platform based on the national secret algorithm is constructed, including four functional modules: time synchronization, signature, storage and management services. It obtains a trusted time source from an authoritative timing agency and has multiple features, such as security and reliability, precise time synchronization, powerful functional modules, strict compliance, improved business efficiency, traceability and non-repudiation, and complete audit and evidence support.

[0041] S4: A single set of trusted timestamp support specifications is established, covering trusted timestamp construction, access, and system service interface specifications, which institutionally guarantees the safe and stable operation of the trusted timestamp system, determines access procedures, standards, and restrictions, and specifies application interface standards.

[0042] S5: Construction of single-set management specifications for digital archives, including single-set archiving of electronic documents and single-set management specifications for electronic archives, collaborative office system archiving interface specifications, operation management specifications and trusted timestamp interface specifications, clarifying the management requirements, data exchange specifications, business specifications, etc. for the entire life cycle.

[0043] S6: The electronic document archiving process is to receive the documents online through the electronic document archiving interface, conduct four-property detection and authenticity and integrity verification, intelligently classify, number, stamp and archive, inspect and sign the documents, and seal and sign the electronic archive package.

[0044] S7: Electronic document management, mainly involves demarcation and identification work, signing the generated metadata, signing the destruction operation, storing metadata information in a trusted timestamp server, and providing an archive traceability interface.

[0045] S8: Electronic official documents can be used for searching by title, document number, date of writing, etc. Borrowing of non-public electronic official documents requires application and approval.

[0046] S9: The electronic archive transfer and acceptance stage includes two links: transfer and acceptance. In the transfer link, the digital archive room generates relevant information and catalog files and signs them. In the acceptance link, the digital archives will test and receive them, and update and sign the "Electronic Archive Transfer and Acceptance Registration Form".

[0047] S10: Collaboration among all business stages and links. All business stages and links can conduct effective data exchange and information sharing, and jointly realize efficient, accurate and secure electronic document generation and electronic archive management.

[0048] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An office management system based on a single set of trusted time stamp and digital signature archives, characterized in that: It includes three business stages: electronic document formation and processing, electronic document archiving and management, and electronic archive transfer and reception, covering a series of process links and operation steps. In the electronic document formation and processing stage, the original collaborative office system is transformed based on the core business process "electronic document formation and processing stage" and the system construction requirements of relevant standards and specifications, and the electronic document issuance process and receipt process are transformed to achieve the following functions: support the formation of electronic files and their components in accordance with the electronic archive format requirements, among which the original, finalized, and document processing sheets of electronic documents are archived and saved in OFD, PDF and other format document formats, and the revised drafts are archived and saved in WPS, RTF, DOC and other formats. The electronic document format of party and government agencies complies with the requirements of GB / T33476 (all parts). Support the automatic collection of metadata at key nodes in the process of electronic document formation and circulation, and form standardized structured data. Support the sorting and detection of electronic files in accordance with specifications after the electronic documents are processed or the business process is completed. Support automatic or semi-automatic archiving identification, classification and storage period. Supports the generation of archive information packages containing electronic files and their metadata. The archive information packages do not contain non-open compression, encryption, signatures, seals, timestamps and other technical measures, and are archived online to the electronic archive management system in accordance with program requirements. Supports graphical conversion of electronic signatures. Supports trusted timestamp signatures for key metadata and file materials of electronic files to ensure data security and reliability.

2. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 1, characterized in that: As mentioned above, in the electronic document archiving management stage, a single-set system transformation is carried out based on the original digital archive management system. In accordance with the core business process "electronic document archiving management stage, electronic archive transfer and acceptance stage" and the system construction requirements of relevant standards and specifications, the interface between the digital archive room system and the collaborative office system is transformed, and the "four properties" detection of electronic document archiving management, long-term archive preservation, and electronic archive transfer and acceptance process is strengthened to achieve the trusted timestamp signature of archive management data in the key stage and the trusted verification of archive data.

3. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 1, characterized in that: The above also includes the construction of a trusted timestamp service system. The trusted timestamp service platform is based on the national secret algorithm and can provide accurate and reliable time service products for government agencies and enterprises and institutions. By obtaining a trusted time source from an authoritative time service agency, the system can ensure the reliability of the operation behavior at a certain time when processing data, and provide a non-repudiation basis for the processing of system data in terms of time. The trusted timestamp service platform includes four functional modules: time synchronization service, time stamp signature service, time stamp storage service and time stamp management service, which realize the signing, encryption, storage and management of electronic data. Among them, the trusted time synchronization service is responsible for communicating with the time source recognized by the national authority, obtaining the trusted time and synchronizing the time of the timestamp server. The timestamp signature service is responsible for receiving timestamp requests, verifying the legitimacy of the request, and generating and issuing timestamps. The timestamp storage service is responsible for storing the timestamp signature result data. The constructed trusted timestamp service system has the following characteristics: safe and reliable: the system complies with the national secret algorithm standards such as SM2 cryptographic algorithm, SM3 digest algorithm and SM4 symmetric algorithm issued by the National Cryptography Administration to ensure the security and reliability of digital signatures. Accurate time synchronization: the system supports communication with the time source recognized by the national authority, obtains and synchronizes the trusted time, and ensures that the issuance time is authentic and reliable. Powerful functional modules: The system includes four components: time synchronization service, timestamp signature service, timestamp storage service and timestamp management service, covering the full range of needs from time synchronization to timestamp signature, data storage and management. Strict compliance: The system complies with relevant national laws, regulations and technical standards, and meets the compliance requirements of government agencies and enterprises and institutions in the process of data processing. Improve business efficiency: The system provides a simple and easy-to-use management interface to facilitate operation and management, saving time and cost. Traceability and non-repudiation: The system provides a reliable timestamp to ensure the authenticity, integrity and traceability of the data, providing a non-repudiation basis. Complete audit and evidence support: The system's timestamp storage service can save timestamp-related data for future query, audit and evidence.

4. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 1, characterized in that: The above also includes the construction of standards and specifications, as follows: (1) Trusted timestamp single set support specifications: Trusted timestamp construction specifications cover the entire process of trusted timestamp construction, startup, and management, and institutionally guarantee the safe, reliable, and stable operation of the entire trusted timestamp system. Trusted timestamp access specifications determine the application process specifications, technical standards, and usage restrictions for access by relevant units. Trusted timestamp system service interface specifications stipulate application interface standards such as permission management, data exchange, data query, and application support of the trusted timestamp system, including technical requirements and interface message specifications. The technical requirements specify the technical requirements for the interconnection of various information systems, and the interface message specifications define the exchange data format, data type, expression method, etc. (2) Digital archive single set management specifications: Electronic file single set archiving and electronic archive single set management specifications clearly support the specific requirements of archive single set management from the entire life cycle process of electronic file generation and electronic archive management. The archive interface specification of the archive single set management collaborative office system specifies the data exchange specifications for the archiving of electronic documents from the collaborative office system to the digital archive management system under the support of trusted timestamp technology. The operation and management specifications of the collaborative office system for single-set management of archives form business specifications that support single-set management from the perspective of collaborative office system document sending and receiving management. The trusted timestamp interface specification for single-set management of archives specifies the data exchange specifications for digital signature and data verification between archive management system data and trusted timestamp system under the support of trusted timestamp technology.

5. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 2, characterized in that: In the archiving link of the electronic document archiving management stage, the electronic document metadata and electronic files are received online through the electronic document archiving interface, the received electronic document is tested for four properties, the trusted timestamp interface is called to verify the authenticity and integrity of the metadata and electronic files, and then the electronic document is intelligently classified and numbered, and finally stamped with an archiving stamp. When stamping, the stamped file is checked once through the trusted timestamp to ensure that the stamped file is correct, the electronic file with the archiving stamp inserted is signed with a trusted timestamp, the electronic document-related metadata and electronic files are packaged to generate an electronic archive package, and the electronic archive package is signed with a trusted timestamp.

6. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 2, characterized in that: In the management link of the electronic document archiving management stage, the management of electronic documents in the digital archive system is mainly demarcation, control and identification work. Relevant metadata is generated during demarcation, control and identification, and the generated metadata is signed with a trusted timestamp. For electronic archives that need to be destroyed, the operation is synchronously signed with a trusted timestamp through the electronic archive destruction process. At the same time, the business stage from the formation and processing of electronic documents to archiving is taken as the life cycle, and the relevant metadata information is stored on the trusted timestamp server. The trusted timestamp provides a corresponding interface so that business personnel can complete the traceability operation of the archives in the archive system, ensuring that the business process of each electronic document archive is authentic and traceable.

7. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 2, characterized in that: In the utilization link of the electronic document archiving management stage, in the archive system, electronic documents can be searched according to title, document number, date of writing, etc., and the electronic document directory data can be queried. If the original text of the retrieved non-public electronic document is needed, a borrowing application must be initiated, and the original text of the electronic document can be browsed after approval by the relevant responsible person.

8. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 1, characterized in that: The electronic archive transfer and reception stage can be defined as the process of transferring electronic documents from the archive room to the municipal archives. This process is mainly completed in the digital archive system. The trusted timestamp system provides corresponding verification and trusted timestamp signature services to ensure the archive verification and metadata trusted timestamp signature requirements in the business process, ensuring data consistency and traceability.

9. The office management system based on a single set of trusted time stamp and digital signature archives according to claim 1, characterized in that: In the electronic archive transfer and acceptance stage, the transfer link is completed by the digital archive room, and the digital archive system generates the transfer-related information and transfer directory file in the "Electronic Archive Transfer and Acceptance Registration Form", and signs the relevant data with a trusted timestamp; the receiving link is completed by the digital archives, and the digital archives receives the "Electronic Archive Transfer and Acceptance Registration Form" and transfer directory file online from the digital archives, obtains the electronic archive package, performs four-property detection, and calls the trusted timestamp service related interface to complete the authenticity and integrity detection. After the detection passes, the archived electronic documents are received, the "Electronic Archive Transfer and Acceptance Registration Form" is updated, and the updated "Electronic Archive Transfer and Acceptance Registration Form" is signed with a trusted timestamp.

10. An office management system based on a single set of trusted time stamp and digital signature archives according to claims 1-9, characterized in that: Effective data interaction and information sharing can be carried out between the various business stages and links, jointly realizing efficient, accurate and secure electronic document generation and electronic archive management.

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