WO2021008556A1 - 在电子文件上修改表单数据的方法和装置 - Google Patents

在电子文件上修改表单数据的方法和装置 Download PDF

Info

Publication number
WO2021008556A1
WO2021008556A1 PCT/CN2020/102137 CN2020102137W WO2021008556A1 WO 2021008556 A1 WO2021008556 A1 WO 2021008556A1 CN 2020102137 W CN2020102137 W CN 2020102137W WO 2021008556 A1 WO2021008556 A1 WO 2021008556A1
Authority
WO
WIPO (PCT)
Prior art keywords
signature
modification
modified
electronic file
field
Prior art date
Application number
PCT/CN2020/102137
Other languages
English (en)
French (fr)
Inventor
徐红轮
Original Assignee
北京奎牛科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京奎牛科技有限公司 filed Critical 北京奎牛科技有限公司
Publication of WO2021008556A1 publication Critical patent/WO2021008556A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/16—Program or content traceability, e.g. by watermarking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/166—Editing, e.g. inserting or deleting

Definitions

  • the invention relates to electronic file processing technology, in particular to a method and device for modifying form data on an electronic file.
  • a business form of a layout document can be used to describe the business; the layout document can be, for example, an electronic document such as a leave form, an expense account, a loan form, an official document, a contract, a doctor’s prescription, and a patient’s medical record, which can contain multiple needs Fill in the data form fields and the approval signatures of multiple approvers.
  • the approval signature may include the signature of the person involved in the business processing process.
  • the approval signature protects the form fields in the file by locking specific form fields; however, once the form field is protected by the approval signature, the value of the form field cannot be modified (except for hacker tools), even if it is illegally modified, it will cause The approval signature is invalid.
  • the form field data in the electronic file needs to be modified.
  • the business form in the electronic file is found to be incorrectly written in the value of the secondary form field of a certain form field after the first level of approval.
  • Traditional paper documents allow the modifier to smear and mark the form fields that need to be modified, modify the content next to it and sign to explain, and still continue the business processing and approval process.
  • the form field of the business form has been locked and it is not allowed to modify it.
  • the electronic file can only be discarded and the business form data is filled in and approved according to the business process again, which greatly wastes manpower Material resources.
  • the purpose of the present invention is to provide a method and device for modifying form data on an electronic file, so as to overcome at least one of the above-mentioned defects in the prior art.
  • the present invention provides a method for modifying form data on an electronic file, wherein the electronic file includes a form field and a form signature field, and the method includes: generating a form signature modification interface for the electronic file; wherein, The form signature modification interface includes an interactive interface for inputting signature modification parameters; the signature modification parameters are received through the form signature modification interface, wherein the signature modification parameters include the modifier’s digital certificate, the modifier’s name or the impression image , At least one of the appearance parameters of the digital signature and the signature method, the form field to be modified and its new modified value, the modification reason, and the modification time; and the digital signature is applied to the electronic file by using the received signature modification parameter.
  • the method of modifying the form data further includes: writing the public key digital certificate of the modifying person, the signature opinion, the signature time and the signature method, as well as all modified form fields and their new modified values.
  • Digital signature dictionary for electronic files wherein the modification time is taken as the signature time, and the modification reason is taken as the signature opinion.
  • the method for modifying form data further includes: using the received signature modification parameters to generate a signature appearance that is used to present on the electronic file as a visual appearance of the final digital signature; wherein the signature appearance indicates that The name of the modified form field and its new modified value, the name or impression of the person who modified it, the reason for the modification, and the time of modification; and the appearance of the signature is written into the electronic file.
  • the signature appearance further includes a pointer to the modified form field in the electronic file.
  • the signature appearance indicates the names of multiple modified form fields and their modified new values.
  • the method for modifying form data further includes: when it is determined that the electronic file does not contain the form field that needs to be modified, adding the form field containing the modified new value to the electronic file.
  • the method for modifying form data further includes: extracting the modified new value of the last modified form field as the final form of the modified form field data.
  • the electronic file is a format file.
  • the present invention also provides a device for modifying form data on an electronic file, wherein the electronic file includes a form field and a form signature field, and the device includes: a form signature modification interface generating module for generating a response The form signature modification interface of the electronic file; wherein, the form signature modification interface includes an interactive interface for inputting signature modification parameters; a signature modification parameter receiving module is used to receive signature modification parameters through the form signature modification interface, wherein the Signature modification parameters include at least one of the modifier’s digital certificate, modifier’s name or impression image, digital signature appearance parameters and signature method, form fields to be modified and their new modified values, modification reasons, and modification time; and The digital signature stamping module is used to stamp the electronic file with a digital signature using the received signature modification parameters.
  • the present invention also provides a device including: a memory for storing instructions; and a processor coupled to the memory, and when the instructions are executed by the processor, the processor executes any of the above-mentioned embodiments.
  • a device including: a memory for storing instructions; and a processor coupled to the memory, and when the instructions are executed by the processor, the processor executes any of the above-mentioned embodiments.
  • the present invention also provides a computer-readable storage medium on which instructions are stored.
  • the processor executes the form data modification according to any one of the above embodiments. method.
  • the technical effects achieved by the above technical solutions of the present invention include but are not limited to: data modification can be made to the form fields in the electronic file that have been protected by the approval signature, and new form fields can also be added to the electronic file. These modifications The previous form field data filling and approval signature will not be invalidated, and the business processing process can be continued, thereby improving the efficiency of business processing using electronic files.
  • Figure 1 shows a flowchart of a method for modifying form data on an electronic file according to an embodiment of the present invention
  • Figure 2 shows a block diagram of the modified signature elements in the embodiment
  • Figure 3 shows a partial example of the format file modified in the embodiment, in which the form field "experimental drug” is modified, and the appearance of a directional signature is adopted;
  • Figure 4 shows a flow chart of operations for modifying form fields in an embodiment
  • Figure 5 shows a partial example of the format file modified in the embodiment, in which a non-directional signature appearance is adopted, and the newly added form field "medication time" is indicated in the signature appearance;
  • Fig. 6 shows an operation flowchart of adding a new form field in the embodiment
  • Fig. 7 shows a schematic diagram of program modules of the business processing system used in the embodiment.
  • the electronic file processed in the embodiment of the present invention may be a format file or an electronic document file in other formats.
  • the layout of the layout document is not related to the device used. When reading, printing or printing on various devices, the layout results are consistent.
  • the PDF file is a file format developed by Adobe Systems for file exchange in a way that has nothing to do with applications, operating systems, and hardware.
  • the layout file form is designed, the form structure is fixed when filling in the mode, and only the form fields are for input. With the help of layout solidification features of format files and dynamic interaction characteristics of form business, it is possible to simulate traditional paper form filling to a greater extent.
  • the source, purpose, document authority, form appearance, and business logic of the format file can be solidified. If the above information is modified, the format file is not recognized by the authenticating party.
  • a format file usually only has one certification signature.
  • the approval signature is also called the approval signature.
  • the approval signature By approving and signing electronic files, some fields of the form are locked and read-only, and information such as the person, time, location (host information), opinions, and contact information of the approval are recorded. If the file version protected by the approval signature is modified by binary or the protected form field is modified, the approval signature verification fails.
  • the signature of the modifier is also an approval signature.
  • a method for modifying form data on an electronic file includes: generating a form signature modification interface for the electronic file (step 101); the form signature modification interface includes a method for inputting signature modification parameters Interactive interface (such as a dialog box); receive signature modification parameters through the form signature modification interface (step 102); signature modification parameters include the modifier’s digital certificate, modifier’s name or impression image, and digital signature appearance parameters (such as signature font , Font size, etc.) and at least one of the signature method, the form field to be modified and its new modified value, the modification reason, and the modification time; the digital certificate of the modifier is used to digitally sign the electronic file (step 103).
  • the form signature modification interface includes a method for inputting signature modification parameters Interactive interface (such as a dialog box); receive signature modification parameters through the form signature modification interface (step 102); signature modification parameters include the modifier’s digital certificate, modifier’s name or impression image, and digital signature appearance parameters (such as signature font , Font size, etc.) and at least one of the signature method, the form field to be modified and its new
  • the form signature modification interface is used to receive form modification data or add new form data, without directly modifying the data in the form field, so that the previous form field data filling and approval signature can still be kept valid.
  • the form data is modified by adding a special approval signature (also referred to as a modification signature) to the electronic file, and form modification parameters are added to the traditional signature parameter dictionary;
  • the form modification parameters may include one Group or multiple groups need to modify the name of the form field and its new value;
  • the final signature appearance interface contains one or more groups of the name of the form field to be modified and its new value, the name of the person who modified it or the impression image, the reason for the modification, Change the time.
  • an electronic file processing program may be called first to generate a form signature modification interface and obtain form signature modification parameters.
  • the modifier can use the mouse to select the modified form field in the operation, and the form signature modification interface will pop up on the layout of the electronic file.
  • the form signature modification interface is an interactive interface containing a dialog box for receiving form field modification data and signature related parameters for the selected form field.
  • the modifier can enter the modified new value of the form field in this form signature modification interface, fill in the modification reason, select the user digital certificate, obtain the modifier’s name or impression image, and enter the user certificate password to affix the digital signature.
  • the name of the modifying person is read from the user's digital certificate; the impression image of the modifying person can be read from the digital certificate, or from UKEY or impression server.
  • the form data modification in the signature modification parameter can be one or more groups of form fields and corresponding new values of the form fields.
  • the form data can be modified multiple times through the signature modification parameters received by the form signature modification interface and digital signatures.
  • the digital signature is entered.
  • the digital signature is divided into 3 steps: the first step: the appearance of the digital signature is generated according to the signature modification parameters; the second step: the signature modification parameters are written into the digital signature dictionary; the third step: the existing technology is used for digital signature Value calculation and writing.
  • Step 1 Modify the parameters of the signature to generate the appearance of the digital signature.
  • the appearance of the signature added on the layout of the electronic file can describe the modification content and the modification method of the form data.
  • One way to modify is to modify the value of a certain form field.
  • the corresponding directional signature has a directional mark on the appearance to point to the modified form field, and indicate the new value of the form field, the name or impression of the person who modified it. Modify parameters such as image, modification time and modification reason.
  • a form field can be modified in this way one or more times.
  • the final value of the form field can be the value indicated by the digital signature of the last modification.
  • Another way to modify the form data is to modify the value of a form field in a non-directional manner. The appearance of the corresponding non-directional signature does not include a mark pointing to the modified form field, but indicates the modified form field.
  • the modification parameters are used as the modification signature elements, and the block diagram is shown in Figure 2.
  • the "modified domain” and “modified domain new value” can be one or more.
  • the "modified field” can indicate the specified form field that is modified by pointing to a mark.
  • the "modified field” indicates the name of the specified form field to be modified or the name of the newly added form field.
  • the non-directional modification method you can not select the specified form field, but indicate the form field that needs to be modified in the signature appearance, so as to modify any one or more form fields in the electronic file; or in the signature appearance Indicate the new form fields that need to be added.
  • the forms in the layout file have fixed form filling fields. After the form is authenticated, the form filling fields cannot be added, and adding will invalidate the authentication signature.
  • the form fields represent the field structure of the form, and the form fields in the form have unique names.
  • Step 2 Write the signature modification parameters into the digital signature dictionary
  • Signature parameters are written into the signature dictionary in the form of a dictionary.
  • General signature parameters include: the signer's name, signing time, signature opinions, signature method, signing host, signer's public key digital certificate, signer's impression, etc.
  • Form field modification information can also be written in the signature dictionary.
  • the form field modification information written in the signature dictionary usually includes: one or more groups of modified form field names and new values of the form fields, the name of the person who modified, the reason for the modification, the modification time, and the direction of the form field. .
  • the name of the signer is used as the name of the modifier
  • the modification time of the form field can be used as the signature time
  • the reason for the modification of the form field data can be saved as a signature opinion.
  • the final value of the form field will adopt the modified value indicated by the digital signature of the last modification. You can also view all historical signed versions of file revisions on the final layout file.
  • the appearance of the signature is solidified as the appearance of the digital signature; the modified information is also protected by the digital signature just like the signer’s public key certificate, signature method and other basic signature information.
  • the signature appearance is used to display on the layout of the electronic document to indicate the modified form data.
  • the appearance of the signature can usually be located in a blank space on the layout of the electronic document, without obstructing the form fields and form data.
  • Each signature usually corresponds to only one signature appearance. In the prior art, the appearance of a signature usually only contains the name of the signatory, signing time, etc.
  • the signature appearance in the embodiment of the present invention adds the modification information of the form field (including but not limited to the name of the form field, the new value of the form field, the directional arrow, etc.); in the embodiment of the present invention
  • the signature dictionary adds form modification parameters (including but not limited to one or more sets of form fields and new values of form fields).
  • Step 3 Use existing technology to calculate and write digital signature value
  • the signature value is calculated and written into the signature dictionary to complete the digital signature stamping.
  • a signature method refers to a method or method of digital signature, which includes the following parameters: Signature Handler, such as adbe.pkcs7.detached, specifies the format of the signature value as PKCS#7; signature digest algorithm parameters, such as (SHA1/ SHA256/SHA385/SHA512); signature algorithm parameters (RSA/DSA), etc.
  • signature Handler such as adbe.pkcs7.detached
  • signature digest algorithm parameters such as (SHA1/ SHA256/SHA385/SHA512
  • signature algorithm parameters RSA/DSA
  • the general signature method will clarify the digest calculation algorithm, signature value calculation algorithm, and signature value storage format.
  • the digest calculation algorithm includes SHA1/SHA256/SHA384/SHA512, etc.
  • the signature value calculation algorithm includes RSA/DSA, etc.
  • the signature value storage format includes PKCS#7, PKCS#1, or the original mathematical signature value.
  • the digest calculation is performed on the data in the byte range of the calibration signature, and the digest calculation is performed As a result, the digest value is obtained, and then the user private key certificate is used to perform signature calculation on the above digest value to obtain the signature mathematical value of the digest value. Since the signature mathematical value is not conducive to exchange and storage, the public key certificate, digest algorithm, and signature mathematical value are finally encapsulated in a PKCS#7 envelope message, and the final PKCS#7 message is used as the signature value of the electronic file (see ISO32000).
  • signature methods such as adbe.pkcs7.detached signature handler, SHA256 digest calculation algorithm, and RSA signature value calculation algorithm
  • the byte range of the signature refers to the byte range used in the signature digest calculation when the digital signature is implemented. File data outside this range is not calculated, and byte data within this range participates in digest calculation. Usually, the byte range of the signature is the entire range of the electronic file except the storage location of the reserved signature value. In an electronic document, only the storage of the signature value is not protected by the digital signature. Other electronic document data are protected by the digital signature. The significance of the signature value itself lies in the subsequent signature verification.
  • the digest algorithm can use SHA1/SHA256/SHA385/SHA512, etc. (the digest algorithm is finally written into the signature dictionary or stored in the envelope message), and the digest is obtained from the calculation result value.
  • step (3) Use the private key digital certificate of the modifier to calculate the signature value of the digest value calculated in step (2).
  • the form data modification process of the electronic file is a digital signature generation process.
  • the form modification parameters are received using the signature appearance, and the form modification parameters are written into the signature dictionary.
  • form data modification is realized by way of approval and signature, so as to solve the problem of modification of protection fields and update of new and old versions of form fields in business processing in actual business scenarios. This method does not require re-processing of electronic files.
  • the business process process can also record all historical revision traces of electronic files.
  • Fig. 3 shows a partial example of the format file modified in the embodiment.
  • the form field "experimental drug” (301) in the format file (300) is modified and the directional signature appearance (302) is adopted.
  • the field of the trial drug (301) in the layout culture (300) may enter the locked mode for some reason and cannot be modified.
  • the old value "1x100mg, white oral tablet” of the form field "Experimental drug” (301) will be modified to "1x150mg, black oral tablet” (that is, the modified new dose and physical properties).
  • the reason for the modification is "work error, so it is corrected", and the modification time is "2019-01-2418:36".
  • a directional signature appearance can be generated (302).
  • the directional signature appearance (302) includes a straight line with an arrow on its left side as a directional mark, which points to the position of the data value field of the modified form field "Experimental Drug” (301), indicating that the signature appearance (302)
  • the new value "1x150mg, black oral tablet” in the form field will replace the old value "1x100mg, white oral tablet” in the form field "experimental drug” (301).
  • the appearance of the signature (302) also indicated the reason for the modification "work error, so it was corrected", the modification time "2019-01-24 18:36” and the impression image of the modifier's signature.
  • the new value of the form field can be displayed in different color fonts.
  • Fig. 4 shows a flowchart of the operation of modifying the form field in the embodiment.
  • the specific operation process of the embodiment in FIG. 3 may include the following steps: select the form field that needs to be modified in the form layout of the electronic file (step 401); add or pop up a preview effect and dialog containing the modifier’s signature in the form layout
  • the form signature modification interface of the frame interface step 402; the modifier enters the new value of the form field to be modified and the modification reason in the dialog box, and uses the modifier’s digital certificate for digital signature to solidify the form modification Data (step 403).
  • FIG. 5 shows a partial example of the format file modified in the embodiment.
  • a non-directional signature appearance (501) is used in the format file (500), and the newly added form field "medication time” is indicated in the signature appearance (501) ".
  • the medication confirmation form (500) shown in FIG. 5 has been upgraded due to its electronic file version, and the new form submission scheme requires that the medication time must be entered therein.
  • the "Date of Medication” form field is defined, and the "Drug Time” form field is not defined.
  • the form field "medication time” is for example "08:10".
  • the reason for the modification is, for example, "the plan is changed and the time needs to be recorded", and the modification time is "2019-01-24 19:49".
  • Some of the above-mentioned signature modification parameters can be used to generate a non-directional signature appearance (501) on the form layout of the electronic file to indicate the newly added form field "drug time", specific medication time, modification reason, modification time, and modification person Signed impression image.
  • Fig. 6 shows an operation flowchart of adding a new form field in the embodiment.
  • the specific operation process of the embodiment of FIG. 5 may include the following steps: select any position on the business form as the position of the form signature modification interface (step 601); add or pop up a dialog containing the signature preview effect and dialog at the selected position
  • the form signature modification interface of the frame interface ((step 602); the modifier enters the name of the newly added form field, the new value of the form field and the reason for modification in the dialog box of the interface, and uses the modifier’s digital certificate for digital signature, Modify the data with the solidified form (step 603).
  • Fig. 7 shows a schematic diagram of program modules of the business processing system used in the embodiment.
  • the business processing system includes: an acquisition module (701), used to call the electronic file processing program, and use the form signature modification interface to acquire signature modification parameters, including form field modification data and signature related parameters; write module (702), used to The obtained signature modification parameters are written into the signature dictionary, and the signature appearance including the name of the modified form field and its new modification value, the name of the modification person or the impression image, the reason for modification, and the modification time are generated, and the signature appearance is written Enter the electronic file as the appearance of the final digital signature; use the digital certificate of the modifier to add the digital signature to the electronic file; the extraction module (703) is used to extract the final form data of each form field of the electronic file when reading the electronic file (That is, the latest form data), the final value of the modified form field will adopt the modified value indicated by the last modified signature.
  • an acquisition module (701) used to call the electronic file processing program, and use the form signature modification interface to acquire signature modification parameters, including form field modification

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Storage Device Security (AREA)

Abstract

一种用于在电子文件上修改表单数据的方法，该方法包括：生成针对电子文件的表单签名修改界面（101）；表单签名修改界面包括用于输入签名修改参数的交互界面；通过表单签名修改界面接收签名修改参数（102），签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；采用接收的签名修改参数对电子文件加盖数字签名（103）。本方法可以达到对电子文件中已通过审批签名而被保护的表单域进行数据修改或添加的效果，同时维持先前的表单域数据填写和审批签名有效。

Description

在电子文件上修改表单数据的方法和装置 技术领域
本发明涉及电子文件处理技术，具体涉及一种用于在电子文件上修改表单数据的方法和装置。
背景技术
电子文件处理系统往往会涉及基于电子文件的业务处理。业务泛指在各行业中需要处理的事务。例如，可以通过一份版式文件的业务表单来描述业务；版式文件例如可以是请假单、报销单、借款单、公文、合同书、医生处方和患者病历等的电子文档，其中可以包含多个需要填写数据的表单域和多个审批人的审批签名。
在电子文件处理过程中，通过认证签名(certification signature)说明电子文件的来源及用途；通过审批签名(approval signature)来记录电子文件的签批过程和痕迹。审批签名可包括参与业务处理流程的人员签名。审批签名通过锁定特定的表单域来对文件中的表单域进行保护；然而一旦表单域被审批签名保护起来，表单域的值将不能被修改(黑客工具除外)，即使被非法修改，也将导致审批签名失效。
然而在很多情况下，电子文件中的表单域数据需要进行修改。例如有一种情况是，电子文件中的业务表单在经过了一级级签批之后，发现某个表单域的次要表单域的值写的不正确。传统的纸质文件允许修改人在需要修改的表单域上进行涂抹、标记，在其旁边进行内容修改并签字说明，仍然可以继续业务办理和审批流程。而在电子文件中，由于业务表单的表单域已被锁定，不允许对其进行修改，结果是只能废弃该电子文件，重新按照业务流程进行业务表单数据的填写和审 批，这样大大浪费了人力物力。
还有一种情况是，电子文件的业务表单的填写审批过程进行了一半，或者正在办理过程中，此时管理部门发布新规定，新办理业务采用新表单，正在办理中的业务采用老的表单，但需要在表单上签字做补充说明。结果只能是废弃该电子文件，重新按照新业务规定进行业务表单数据的填写和审批，这就使得先前的数据填写和审批都要作废重来。
发明内容
本发明的目的在于提供一种用于在电子文件上修改表单数据的方法和装置，以克服现有技术中存在的上述缺陷中至少之一。
本发明提供一种用于在电子文件上修改表单数据的方法，其中，所述电子文件包括表单域和表单签名域，所述方法包括：生成针对所述电子文件的表单签名修改界面；其中，所述表单签名修改界面包括用于输入签名修改参数的交互界面；通过所述表单签名修改界面接收签名修改参数，其中所述签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；以及采用所接收的签名修改参数对所述电子文件加盖数字签名。
在一些实施例中，修改表单数据的方法还包括：将所述修改人的公钥数字证书、签名意见、签名时间和所述签名方法、以及所有被修改的表单域及其修改新值写入电子文件的数字签名字典；其中，将所述修改时间作为所述签名时间，将所述修改理由作为所述签名意见。
在一些实施例中，修改表单数据的方法还包括：利用所接收的签名修改参数生成用于呈现在电子文件上作为最终数字签名的可视效果外观的签名外观；其中，所述签名外观标明被修改的表单域的名称及其修改新值、修改人的名称或印模图像、修改理由和修改时间；以 及将所述签名外观写入到所述电子文件中。
在一些实施例中，所述签名外观还包括指向所述电子文件中的所述被修改的表单域的指向标志。
在一些实施例中，所述签名外观标明多个被修改的表单域的名称及其修改新值。
在一些实施例中，修改表单数据的方法还包括：当判断所述电子文件不包含所述需要修改的表单域时，在所述电子文件中增加包含所述修改新值的所述表单域。
在一些实施例中，允许对所述电子文件中的表单域进行多次修改，其中修改表单数据的方法还包括：提取最后一次修改的表单域的修改新值作为被修改的表单域的最终表单数据。
在一些实施例中，所述电子文件是版式文件。
本发明还提供一种用于在电子文件上修改表单数据的装置，其中，所述电子文件包括表单域和表单签名域，所述装置包括：表单签名修改界面生成模块，用于生成针对所述电子文件的表单签名修改界面；其中，所述表单签名修改界面包括用于输入签名修改参数的交互界面；签名修改参数接收模块，用于通过所述表单签名修改界面接收签名修改参数，其中所述签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；以及数字签名加盖模块，用于采用所接收的签名修改参数对所述电子文件加盖数字签名。
本发明还提供一种装置，包括：用于存储指令的存储器；以及耦合到所述存储器的处理器，所述指令在由所述处理器执行时使得所述处理器执行根据上述实施例中任一个实施例所述的表单数据修改方法。
本发明还提供一种计算机可读存储介质，其上存储由指令，所述 指令在由计算机的处理器执行时使得所述处理器执行根据上述实施例中任一个实施例所述的表单数据修改方法。
本发明的上述技术方案所实现的技术效果包括但并不限于：可以对电子文件中已通过审批签名而被保护的表单域进行数据修改，也可以在电子文件中增加新的表单域，这些修改都不会使先前的表单域数据填写和审批签名失效，并可继续业务处理流程，从而改善利用电子文件进行业务处理的效率。
附图说明
图1示出根据本发明实施例的用于在电子文件上修改表单数据的方法的流程图；
图2示出在实施例中的修改签名要素的构成框图；
图3示出在实施例中修改的版式文件的局部示例，其中的表单域“试验药物”被修改，并采用指向性签名外观；
图4示出在实施例中修改表单域的操作流程图；
图5示出在实施例中修改的版式文件的局部示例，其中采用非指向性签名外观，并在签名外观中标明新增加的表单域“服药时间”；
图6示出在实施例中增加新表单域的操作流程图；
图7示出在实施例中使用的业务处理系统的程序模块示意图。
具体实施方式
以下结合附图进一步描述本发明的实施例。
在本发明的实施例中所处理的电子文件可以是版式文件，也可以是其它格式的电子文档文件。版式文件的版面呈现效果固定的电子文档格式，版式文档的呈现与使用设备无关，在各种设备上阅读、打印或印刷时，其版面的呈现结果都是一致的。如国际标准的PDF文件、国家标准的OFD文件等。PDF文件是由Adobe Systems公司用于与 应用程序、操作系统、硬件无关的方式进行文件交换所发展出的文件格式。在版式文件上可以定义表单的外观、业务逻辑、表单域属性及储存表单数据。版式文件表单设计好以后，填写模式时表单结构固定，仅表单域供输入。借助于版式文件的版面固化特征及表单业务动态交互特性，可以在较大程度上模拟传统的纸质表单填写。
通过对版式文件加入认证签名，可以对版式文件的来源、用途、文档权限、表单外观、表单业务逻辑等进行固化，若以上信息发生修改，则说明版式文件不被认证方认可。一个版式文件通常只能有一个认证签名。
审批签名也称为批准签名。通过对电子文件进行审批签名，使得表单一部分域被锁定并只读，同时记录审批的人员、时间、地点(主机信息)、意见、联系方式等信息。若审批签名保护的文件版本被二进制修改或者被保护的表单域被修改，则审批签名验证失败。修改人的签名也是一种审批签名。
根据本发明的实施例，如图1所示，在电子文件上修改表单数据的方法包括：生成针对电子文件的表单签名修改界面(步骤101)；表单签名修改界面包括用于输入签名修改参数的交互界面(如对话框)；通过表单签名修改界面接收签名修改参数(步骤102)；签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数(例如签名的字体、字号等)和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；采用所述修改人的数字证书对电子文件加盖数字签名(步骤103)。
根据本发明的实施例，利用表单签名修改界面来接收表单修改数据或增加新的表单数据，不需要直接修改表单域中的数据，由此可以仍然保持先前的表单域数据填写和审批签名有效。在本发明的实施例中，通过向电子文件添加一种特殊的审批签名(也称之为修改签)方式修改表单数据，在传统的签名参数字典中增加表单修改参数；表单 修改参数可以包含一组或者多组需要修改表单域的名称及其新值；最终的签名外观界面中包含一组或者多组要修改表单域的名称及其新值、修改人的名称或印模图像、修改理由、修改时间。
在该实施例的表单数据修改过程中，例如，可以先调用电子文件处理程序以生成表单签名修改界面，获取表单签名修改参数。修改人在操作中可采用鼠标选中被修改的表单域后，将在电子文件的版面上弹出表单签名修改界面。表单签名修改界面是包含对话框的交互界面，用于接收针对所选表单域的表单域修改数据和签名相关参数。修改人可以在这个表单签名修改界面中输入表单域的修改新值，填写修改原因，选择用户数字证书，获取修改人的名称或印模图像，输入用户证书口令以加盖数字签名。一般修改人的名称从用户数字证书中读取；修改人的印模图像可以从数字证书中读取，也可以从UKEY或者印模服务器读取。
签名修改参数中表单数据修改可以是一组或者多组表单域及表单域对应新值。
在本发明的实施例中，电子文件在业务处理过程中经过一定数量的审批签名之后，电子文件中的一系列表单域将被签名域锁定。此时可以多次通过表单签名修改界面接收的签名修改参数加盖数字签名的方式修改表单数据。
签名修改参数获取之后，即进入加盖数字签名。加盖数字签名分为3个步骤：第一步：根据签名修改参数生成数字签名外观；第二步：将签名修改参数写入数字签名的签名字典；第三步：采用现有技术进行数字签名值计算及写入。
第一步：根据签名修改参数生成数字签名外观。
在电子文件的版面上添加的签名外观可以描述对表单数据的修改内容和修改方式。一种修改方式是针对某个表单域的值的指向性修改，对应的指向性签名外观上带有指向性标志指向被修改表单域，并 且标明表单域的新值、修改人的名称或印模图像、修改时间和修改理由等修改参数，一个表单域可以被一次或者多次按该种方式修改，该表单域最终的值可采用最后一次修改的数字签名所标明的值。对表单数据的另一种修改方式是针对某个表单域的值的非指向性修改，对应的非指向性签名外观中不包含指向被修改表单域的标志，而是标明被修改增加的表单域名称、表单域的新值、签字人或修改人的名称或印模图像、签名时间或修改时间、及修改表单域对应的修改理由或签名意见等表单修改参数，最终可以为表单增加一个带值的表单域。例如，如果签名外观中标明修改的指定表单域在电子文件的原表单上不存在，则表单将扩展该指定表单域、以及指定表单域对应的值。如果指定表单域在原表单上已存在，则修改指定表单域的值。
在上述两种修改方式中，其修改参数作为修改签名要素，其构成框图如图2所示。其中的“被修改域”和“被修改域新值”都可以是一个或多个。在指向性修改方式中，“被修改域”可以通过指向标志来表示被修改的指定表单域。在非指向性修改方式中，“被修改域”则指示被修改的指定表单域的名称或新增加的表单域的名称。
在非指向性修改方式中，可以不选中指定表单域，而是在签名外观中标明需要修改的表单域，以对电子文件中的任意一个或者多个表单域进行修改；或是在签名外观中标明需增加的新表单域。版式文件中的表单都有固定的表单填写域，表单认证后表单填写域将不能添加，添加会使认证签名失效。表单域代表了表单的字段结构，表单内表单域都有唯一名称。在需要在表单中添加表单域的字段时，使用数字签名可增加表单域及其修改值，等于表单中增加了一个表单域对应的字段，并采用修改的新值。
第二步：将签名修改参数写入数字签名的签名字典
通常将所有的签名参数采用字典的形式写入签名字典。一般签名参数包括：签名人的姓名、签名时间、签名意见、签名方法、签名主 机、签名人的公钥数字证书、签名人的印模等。表单域修改信息也可写入在签名字典中。写入签名字典中的表单域修改信息通常包括：一组或者多组被修改的表单域名称及表单域新值、修改人的名称、修改理由、修改时间、表单域指向。。在签名字典中，签名人的姓名作为修改人的名称，可以将表单域修改时间作为签名时间、将表单域数据修改理由作为签名意见来保存。
在最终提取版式文件的表单数据时，表单域最终的值将采用最后一次修改的数字签名所标明的修改值。还可以在最终的版式文件上查看文件修订的所有历史签名版本。
签名外观作为数字签名的外观被固化；修改信息也如同签名者的公钥证书、签名方法等签名基本信息一样都受数字签名的保护。签名外观用于显示在电子文件的版面上，以标明被修改的表单数据。签名外观通常可位于电子文件的版面的空白处，不遮挡表单域及表单数据。每个签名通常只对应于一个签名外观。在现有技术中，签名外观通常仅包含签字人名称、签字时间等。与传统技术相比，在本发明的实施例中的签名外观增加了表单域的修改信息(包含但不限于表单域名称，表单域新值，指向性箭头等)；在本发明的实施例中的签名字典则增加了表单修改参数(包含但不限于一组或者多组表单域及表单域的新值)。
第三步：采用现有技术进行数字签名值计算及写入
根据所述签名修改参数中的公私钥数字证书和签名方法，计算签名值并写入签名字典，完成数字签名加盖。
签名方法是指数字签名的一种方法或方式，其包含以下参数：签名处理器(Signature Handler)，如adbe.pkcs7.detached指定签名值格式为PKCS#7；签名摘要算法参数，如(SHA1/SHA256/SHA385/SHA512)；签名算法参数(RSA/DSA)等。一般的签名方法会明确摘要计算算法、签名值计算算法及签名值存储格式。其中摘要计算算 法有SHA1/SHA256/SHA384/SHA512等，签名值计算算法有RSA/DSA等，签名值存储格式有PKCS#7,PKCS#1,或者原始数学签名值。利用签名方法(如采用adbe.pkcs7.detached签名处理器(Signature Handler)，采用SHA256摘要计算算法，采用RSA签名值计算算法)，通过对标定签名的字节范围内数据进行摘要运算，由摘要运算结果得到摘要值，然后再使用用户私钥证书对上述摘要值做签名计算，得到摘要值的签名数学值。由于签名数学值不利于交换和存储，最终将公钥证书、摘要算法、签名数学值封装在PKCS#7信封消息中，最终得到的PKCS#7消息作为电子文件的签名值(参见ISO32000)。
在对电子文件加盖数字签名的过程中，还可包括以下步骤：
(1)在电子文件中预留出签名值存放位置，通常将签名值存放于签名字典中；同时标定签名的字节范围。签名的字节范围是指实施数字签名时，签名摘要计算所使用的字节范围。在该范围外的文件数据不被计算，该范围内的字节数据参与摘要计算。通常签名的字节范围是除了预留签名值存放位置之外的整份电子文件范围。在一份电子文件中，唯独签名值的存放是不受数字签名保护的，其它电子文件数据皆受数字签名保护，签名值本身存在的意义在于后续的签名验证。
(2)根据签名方法计算电子文件签字的字节范围的摘要值。通过对电子文件签字的字节范围内电子文件数据做摘要计算，摘要算法可以采用SHA1/SHA256/SHA385/SHA512等(摘要算法最终写入签名字典或者存入信封消息中)，由运算结果得到摘要值。
(3)采用修改人的私钥数字证书对步骤(2)中计算出的摘要值做签名值计算。采用修改人的私钥数字证书对上述摘要值做签名运算，签名数学算法采用RSA或者DSA等，最终得签名数学值。根据签名方法中指定的签名值存储格式进行签名值格式封装，比如PKCS#7信封消息，得到最终签名值。
(4)将最终签名值写入电子文件中的预留签名值位置。
在本发明的方法实施例中，电子文件的表单数据修改过程是一个数字签名的生成过程，利用签名外观接收表单修改参数，并将表单修改参数写入签名字典。根据本发明的实施例的方法，利用审批签名的方式实现表单数据修改，以解决实际业务场景中业务办理中保护字段修改及新旧版本表单域更新的问题，该方法既不需要重新进行电子文件的业务流程过程，又能够记录电子文件的全部历史修订痕迹。
图3示出在实施例中修改的版式文件的局部示例，在版式文件(300)中的表单域“试验药物”(301)被修改，并采用指向性签名外观(302)。
例如，版式文化(300)中的试验药物(301)的字段可能由于某种原因进入了锁定模式，不可修改。在此情况下，可以通过生成表单签名修改界面来接收针对表单域“试验药物”的签名修改参数，包括修改人的数字证书、修改人的名称或印模图像、签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间等。表单域“试验药物”(301)的旧值“1x100mg,白色口服片剂”将被修改为“1x150mg,黑色口服片剂”(即，修改后的新服药剂量和物理性状)。修改理由为“工作失误，故而更正”，修改时间为“2019-01-2418:36”。
利用所接收的一部分签名修改参数，可以生成指向性签名外观(302)。指向性签名外观(302)包括位于其左侧的带箭头的直线作为指向性标志，其指向被修改的表单域“试验药物”(301)的数据值字段的位置，表示签名外观(302)中的表单域新值“1x150mg,黑色口服片剂”将取代表单域“试验药物”(301)的旧值“1x100mg,白色口服片剂”。签名外观(302)还标明了修改理由“工作失误，故而更正”、修改时间“2019-01-24 18:36”和修改人签名的印模图像。表单域新值可以使用不同的颜色字体来显示。
图4示出在实施例中修改表单域的操作流程图。例如，图3的实施例的具体操作过程可包括以下步骤：在电子文件的表单版面内选中需要修改的表单域(步骤401)；在表单版面内添加或弹出一个包含修改人签名预览效果和对话框界面的表单签名修改界面(步骤402)；修改人在对话框内输入需要修改的表单域的新值及修改理由等签名修改参数，并使用修改人的数字证书进行数字签名，以固化表单修改数据(步骤403)。
图5示出在实施例中修改的版式文件的局部示例，在版式文件(500)中使用非指向性签名外观(501)，并在签名外观(501)中标明新增加的表单域“服药时间”。
例如，图5所示的服药确认表(500)由于其电子文件的版本升级，新的表格提交方案要求其中必须输入服药时间。而当前版本的业务表单中仅定义了“服药日期”表单域，未定义“服药时间”表单域。在这种情况下，可以通过生成表单签名修改界面来接收针对表单域“服药时间”的签名修改参数，包括修改人的数字证书、修改人的名称或印模图像、签名外观参数和签名方法、需要增加的表单域“服药时间”及其表单域值、修改理由、修改时间等。表单域“服药时间”例如为“08:10”。修改理由例如为“方案变更，需要记录时间”，修改时间为“2019-01-24 19:49”。
可以利用上述一部分签名修改参数在电子文件的表单版面上生成非指向性签名外观(501)，以标明新增加的表单域“服药时间”、具体的服药时间、修改理由、修改时间、以及修改人签名的印模图像。
图6示出在实施例中增加新表单域的操作流程图。例如，图5的实施例的具体操作过程可包括如下步骤：在业务表单上选择任意位置作为表单签名修改界面的位置(步骤601)；在选择的位置上添加或弹出一个包含签名预览效果和对话框界面的表单签名修改界面((步骤602)；修改人在该界面的对话框内输入新增加的表单域的名称、 表单域新值及修改理由，并使用修改人的数字证书进行数字签名，以固化表单修改数据(步骤603)。
图7示出在实施例中使用的业务处理系统的程序模块示意图。业务处理系统包括：获取模块(701)，用于调用电子文件处理程序，并利用表单签名修改界面获取签名修改参数，包括表单域修改数据和签名相关参数；写入模块(702)，用于将获取的签名修改参数写入签名字典，生成包含被修改的表单域的名称及其修改新值、修改人的名称或印模图像、修改理由和修改时间等参数的签名外观，并将签名外观写入电子文件中作为最终数字签名的外观；使用修改人的数字证书对电子文件加盖数字签名；提取模块(703)，用于在读取电子文件时提取电子文件的各表单域的最终表单数据(亦即最新表单数据)，被修改的表单域的最终值将采用最后一次修改的签名所标明的修改值。
以上所述实施例都是示例性的，而非限制性的。本领域技术人员依据上述实施例的启示，可以在不背离本发明原理的范围内对上述实施例做出各种修改或调整。

Claims (11)

  1. 一种用于在电子文件上修改表单数据的方法，其中，所述电子文件包括表单域和表单签名域，所述方法包括：
    生成针对所述电子文件的表单签名修改界面；其中，所述表单签名修改界面包括用于输入签名修改参数的交互界面；
    通过所述表单签名修改界面接收签名修改参数，其中所述签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；以及
    采用所接收的签名修改参数对所述电子文件加盖数字签名。
  2. 根据权利要求1的方法，还包括：
    将所述修改人的公钥数字证书、签名意见、签名时间和所述签名方法、以及所有被修改的表单域及其修改新值写入所述电子文件的数字签名字典；其中，将所述修改时间作为所述签名时间，将所述修改理由作为所述签名意见。
  3. 根据权利要求1的方法，还包括：
    利用所接收的签名修改参数生成用于呈现在所述电子文件上的签名外观；其中，所述签名外观标明被修改的表单域的名称及其修改新值、修改人的名称或印模图像、修改理由和修改时间；以及
    将所述签名外观写入到所述电子文件中。
  4. 根据权利要求3的方法，其中，所述签名外观还包括指向所述电子文件中的所述被修改的表单域的指向标志。
  5. 根据权利要求3或4的方法，其中，所述签名外观标明多个被修改的表单域的名称及其修改新值。
  6. 根据权利要求1的方法，还包括：
    当判断所述电子文件不包含所述需要修改的表单域时，在所述电子文件中增加包含所述修改新值的所述表单域。
  7. 根据权利要求1的方法，其中，允许对所述电子文件中的表单域进行多次修改，其中所述方法还包括：提取最后一次修改的表单域的修改新值作为被修改的表单域的最终表单数据。
  8. 根据权利要求1的方法，其中，所述电子文件是版式文件。
  9. 一种用于在电子文件上修改表单数据的装置，其中，所述电子文件包括表单域和表单签名域，所述装置包括：
    表单签名修改界面生成模块，用于生成针对所述电子文件的表单签名修改界面；其中，所述表单签名修改界面包括用于输入签名修改参数的交互界面；
    签名修改参数接收模块，用于通过所述表单签名修改界面接收签名修改参数，其中所述签名修改参数包括修改人的数字证书、修改人的名称或印模图像、数字签名外观参数和签名方法、需要修改的表单域及其修改新值、修改理由、修改时间中的至少一项；以及
    数字签名加盖模块，用于采用所接收的签名修改参数对所述电子文件加盖数字签名。
  10. 一种装置，包括：
    用于存储指令的存储器；以及
    耦合到所述存储器的处理器，所述指令在由所述处理器执行时使得所述处理器执行根据权利要求1至8中任一项所述的方法。
  11. 一种计算机可读存储介质，其上存储由指令，所述指令在由计算机的处理器执行时使得所述处理器执行根据权利要求1至8中任一项所述的方法。
PCT/CN2020/102137 2019-07-16 2020-07-15 在电子文件上修改表单数据的方法和装置 WO2021008556A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910638555.1A CN112241622A (zh) 2019-07-16 2019-07-16 在电子文件上修改表单数据的方法和装置
CN201910638555.1 2019-07-16

Publications (1)

Publication Number Publication Date
WO2021008556A1 true WO2021008556A1 (zh) 2021-01-21

Family

ID=74166553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/102137 WO2021008556A1 (zh) 2019-07-16 2020-07-15 在电子文件上修改表单数据的方法和装置

Country Status (2)

Country Link
CN (1) CN112241622A (zh)
WO (1) WO2021008556A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106599321A (zh) * 2016-12-30 2017-04-26 上海绿建信息科技有限公司 一种dwg文件批注和签名的生成、解析插件及其使用方法
US9760960B2 (en) * 2014-12-12 2017-09-12 Adobe Systems Incorporated Automatically modifying electronic agreements for execution
CN108052807A (zh) * 2017-12-27 2018-05-18 北京云京科技有限公司 实现电子印章的方法和装置
CN109246055A (zh) * 2017-07-10 2019-01-18 智业互联（厦门）健康科技有限公司 医疗信息安全交互系统及方法
CN109445665A (zh) * 2018-09-17 2019-03-08 江苏敏行信息技术有限公司 一种国密电子签章中的套章方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103902517A (zh) * 2012-12-26 2014-07-02 北京大学 一种分离式电子公文留痕及其显现方法和系统
CN105844249A (zh) * 2016-03-30 2016-08-10 北京奎牛科技有限公司 版式文件表单域的手写录入方法与装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9760960B2 (en) * 2014-12-12 2017-09-12 Adobe Systems Incorporated Automatically modifying electronic agreements for execution
CN106599321A (zh) * 2016-12-30 2017-04-26 上海绿建信息科技有限公司 一种dwg文件批注和签名的生成、解析插件及其使用方法
CN109246055A (zh) * 2017-07-10 2019-01-18 智业互联（厦门）健康科技有限公司 医疗信息安全交互系统及方法
CN108052807A (zh) * 2017-12-27 2018-05-18 北京云京科技有限公司 实现电子印章的方法和装置
CN109445665A (zh) * 2018-09-17 2019-03-08 江苏敏行信息技术有限公司 一种国密电子签章中的套章方法

Also Published As

Publication number Publication date
CN112241622A (zh) 2021-01-19

Similar Documents

Publication Publication Date Title
CN106598930B (zh) 一种基于版式文件的电子证照处理方法
US11356268B2 (en) Digital composition hashing
CN110532811B (zh) 一种pdf签章方法及pdf签章系统
US9009477B2 (en) Archiving electronic content having digital signatures
US6796489B2 (en) Processing electronic documents with embedded digital signatures
US8402276B2 (en) Creating and verifying electronic documents
WO2020024393A1 (zh) 单证报销结算方法、装置、计算机设备及存储介质
US8275993B2 (en) Author signatures for legal purposes
CN108052491A (zh) 一种证件文档的自动处理方法和装置
WO2022126978A1 (zh) 发票信息抽取方法、装置、计算机设备及存储介质
US20100313117A1 (en) Electronic document control apparatus, method, program and system
JP2997483B2 (ja) 検証用データ生成装置
WO2021008556A1 (zh) 在电子文件上修改表单数据的方法和装置
JP2009284138A (ja) 文書処理装置および文書処理プログラム
CN112100685A (zh) 一种检验检测电子报告的加密与防篡改处理方法
JP5788681B2 (ja) 手書き署名取得装置、手書き署名取得プログラム、手書き署名取得方法
CN117150342A (zh) 一种票据数据的批量处理方法、装置及介质
JP2020135690A (ja) 電子承認装置、方法、及びプログラム
JP6960065B1 (ja) 署名生成装置、認証装置、及びプログラム
US11522715B2 (en) Methods for processing and verifying a document
CN112686648A (zh) 一种审核签章文件的电子签名管理方法及系统
US12019788B2 (en) Method and system for registering digital documents
US20240037284A1 (en) Method and system for registering digital documents
JP7299662B1 (ja) 情報処理装置、方法、及びプログラム
CN116842909B (zh) 一种智能化签章方法及系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20841596

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 06.05.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20841596

Country of ref document: EP

Kind code of ref document: A1