CN109523685A - A kind of electronic invoice checking method and system based on OFD formatted file - Google Patents
A kind of electronic invoice checking method and system based on OFD formatted file Download PDFInfo
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- CN109523685A CN109523685A CN201811027900.XA CN201811027900A CN109523685A CN 109523685 A CN109523685 A CN 109523685A CN 201811027900 A CN201811027900 A CN 201811027900A CN 109523685 A CN109523685 A CN 109523685A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
- G07D7/0047—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip using checkcodes, e.g. coded numbers derived from serial number and denomination
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
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- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a kind of electronic invoice checking methods and system based on OFD formatted file, by the electronic invoice for obtaining OFD format to be checked；The electronic invoice of the OFD format to be checked of acquisition is parsed, invoice metadata and invoice signature information are obtained；The information accuracy of the invoice metadata is verified；After confirming the information accuracy of the invoice metadata by verifying, the information accuracy of the invoice signature information is verified, to check the true and false of the electronic invoice of OFD format to be checked.OFD file need to be only uploaded in the present invention, it can be obtained the examination result of invoice after several seconds, invoice examination rate can reach second grade, compared to needing to fill in manually at present, invoice number, invoice codes, the date of making out an invoice, the cumbersome invoice of multiple fields such as tax included price, identifying code checks mode, examination efficiency and accuracy is greatly improved, solves that the invoice data due to caused by this body structure of PDF is difficult to extract, invoice is difficult to the problems such as checking.
Description
Technical field
The present invention relates to electronic invoice verification technique fields, and more particularly, to a kind of based on OFD formatted file
Electronic invoice checking method and system.
Background technique
For the construction needs for further adapting to socio-economic development and tax revenue modernization, electronic invoice is in e-commerce and respectively
Field is widely used, and the change of paper invoice to electronic invoice has been done step-by-step.With the continuous popularization of electronic invoice,
How drawee party verifies the authenticity and integrity of electronic invoice and how to ensure the problems such as invoice is signed and issued by signer urgently
It is to be solved.
The format PDF (Portable Document Format) that electronic invoice generallys use at present.In invoice generation, stream
Turn, during storage, PDF is prosecuted to the end, and when reading, printing or printing in various equipment, the space of a whole page is fixed, and effect is presented not
Because hardware environment, operator variation due to change, with paper invoice texture, can " realistically " show the original of invoice
Looks.But the extensive use with PDF in electronic invoice field, due to this body structure of PDF, such as technical system is complicated, file
Invoice caused by huge structure is difficult to the problems such as high efficiency is checked automatically and gradually emerges in large numbers.When carrying out the examination of PDF format electronic invoice,
User needs manually to input multiple fields, complex steps and the consumptions such as invoice codes, invoice number, date of making out an invoice, the amount of money of making out an invoice
When it is longer, become a problem in electronic invoice extension process.Therefore, in order to promote the examination friendliness of user, when business
It is suddenly to find a kind of automatic, quick invoice examination scheme.
Format document format national standard OFD (Open Fixed-layout Document) as it is a kind of based on XML and
The electronic document format of compress technique removes resource-type file such as picture and more matchmakers using the format standard of " file+packing " framework
Outside external format of the body using prevalence, document data is all described using the XML with good expansibility and portability, and
Carry out storing data in such a way that multiple files are packaged, logical construction includes main-inlet, root node, resource description and the text of file
Equal parts, are finally organized with Tree structure.OFD is realized by unique identification to the optimization of file storage, to parsing
The raising of efficiency and reduction to being coupled between data.It is named for each element using unique mark, therefore
Directly quote these marks in the place for needing to call.It is subsequent need to extract invoice data when, read XML in corresponding label
Value, can easily obtain desired invoice data.
Summary of the invention
The present invention proposes a kind of electronic invoice checking method and system based on OFD formatted file, to solve electronic invoice
Invoice data be difficult to extract, the problem of true or false proving program is cumbersome and time-consuming.
To solve the above-mentioned problems, according to an aspect of the invention, there is provided a kind of electronics based on OFD formatted file
Invoice checking method, which is characterized in that the described method includes:
Step 1, the electronic invoice of OFD format to be checked is obtained；
Step 2, the electronic invoice of the OFD format to be checked of acquisition is parsed, obtains invoice metadata and invoice
Signature information；
Step 3, the information accuracy of the invoice metadata is verified；Wherein, if the letter of the invoice metadata
Accuracy is ceased by verifying, then enters step 4；Conversely, the electronic invoice of the directly confirmation OFD format to be checked is wig
Ticket；
Step 4, after confirming the information accuracy of the invoice metadata by verifying, to the invoice signature information
Information accuracy is verified；Wherein, if the information accuracy of the invoice signature information is confirmed described to be checked by verifying
The electronic invoice for the OFD format tested is true invoice；Conversely, then the electronic invoice of the confirmation OFD format to be checked is wig
Ticket.
Preferably, wherein the invoice metadata includes: the corresponding number ID value of critical field and invoice data；The pass
Key field includes at least one of the following: invoice codes, invoice number, invoice amount and check code.
Preferably, wherein benefit obtains invoice metadata with the following method:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package, obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice for the OFD format tested；
Read at least one critical field pair in the subfile for describing critical field and number ID value corresponding relationship
The number ID value answered；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one
The corresponding number ID value of critical field determines corresponding invoice data.
Preferably, wherein benefit obtains invoice signature information with the following method:
It reads the subfile for describing signature information and obtains invoice signature information.
Preferably, wherein the information accuracy to the invoice metadata is verified, comprising:
The electronic invoice data stored in the invoice metadata and soft KEY is compared, if comparing result is consistent,
Confirm that the information accuracy of the invoice metadata is verified, conversely, then confirming the information accuracy of the invoice metadata
Verifying does not pass through.
Preferably, wherein the information accuracy to the invoice signature information is verified, comprising:
The reasonability of the data format of the invoice signature information is verified；
The correctness of signature value in the invoice signature information is verified；
The validity of seal chapter testimony of a witness book in the invoice signature information is verified；
The validity period of E-seal in the invoice signature information is verified；
The accuracy of summary data in the invoice signature information is verified.
Preferably, wherein the accuracy to the summary data in the invoice signature information is verified, comprising:
The digest value stored in digest value and soft KEY in the invoice signature information is compared, and obtains comparison
As a result.
According to another aspect of the present invention, a kind of electronic invoice checking system based on OFD formatted file is provided,
It is characterized in that, the system comprises:
Invoice acquiring unit, for obtaining the electronic invoice of OFD format to be checked；
Data capture unit, the electronic invoice for the OFD format to be checked to acquisition parse, and obtain invoice member
Data and invoice signature information；
Invoice metadata validation unit is verified for the information accuracy to the invoice metadata；Wherein, if institute
The information accuracy of invoice metadata is stated by verifying, then enters invoice signature information authentication unit；Conversely, directly described in confirmation
The electronic invoice of OFD format to be checked is false invoice；
Invoice signature information authentication unit, after for the information accuracy when the confirmation invoice metadata by verifying,
The information accuracy of the invoice signature information is verified；Wherein, if the information accuracy of the invoice signature information is logical
Verifying is crossed, then the electronic invoice of the confirmation OFD format to be checked is true invoice；Conversely, then confirming the OFD to be checked
The electronic invoice of format is false invoice.
Preferably, wherein the invoice metadata includes: the corresponding number ID value of critical field and invoice data；The pass
Key field includes at least one of the following: invoice codes, invoice number, invoice amount and check code.
Preferably, wherein in the data capture unit, invoice metadata is obtained using following system:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package, obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice for the OFD format tested；
Read at least one critical field pair in the subfile for describing critical field and number ID value corresponding relationship
The number ID value answered；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one
The corresponding number ID value of critical field determines corresponding invoice data.
Preferably, wherein in the data capture unit, invoice signature information is obtained using following system:
It reads the subfile for describing signature information and obtains invoice signature information.
Preferably, wherein the invoice metadata validation unit, tests the information accuracy of the invoice metadata
Card, comprising:
The electronic invoice data stored in the invoice metadata and soft KEY is compared, if comparing result is consistent,
Confirm that the information accuracy of the invoice metadata is verified, conversely, then confirming the information accuracy of the invoice metadata
Verifying does not pass through.
Preferably, wherein the invoice signature information authentication unit, to the information accuracy of the invoice signature information into
Row verifying, comprising:
Data format soundness verification module, the reasonability for the data format to the invoice signature information are tested
Card；
Signature value verification of correctness module is verified for the correctness to signature value in the invoice signature information；
Seal certificate validity authentication module, for the validity to seal chapter testimony of a witness book in the invoice signature information
It is verified；
E-seal validity verification module is tested for the validity period to E-seal in the invoice signature information
Card；
Summary data Accuracy Verification module is carried out for the accuracy to the summary data in the invoice signature information
Verifying.
Preferably, wherein the summary data Accuracy Verification module, to the summary data in the invoice signature information
Accuracy verified, comprising:
The digest value stored in digest value and soft KEY in the invoice signature information is compared, and obtains comparison
As a result.
The present invention provides a kind of electronic invoice checking methods and system based on OFD formatted file, to be checked by obtaining
The electronic invoice for the OFD format tested；The electronic invoice of the OFD format to be checked of acquisition is parsed, invoice member number is obtained
According to invoice signature information；The information accuracy of the invoice metadata is verified；When the confirmation invoice metadata
After information accuracy is by verifying, the information accuracy of the invoice signature information is verified, to check OFD to be checked
The true and false of the electronic invoice of format.OFD file need to be only uploaded in the inventive solutions, can be obtained invoice after several seconds
Examination can reach second grade as a result, invoice checks rate, fills in invoice number manually compared to current needs, invoice codes, makes out an invoice
The cumbersome invoices of multiple fields such as date, not tax included price, identifying code checks mode, greatly improves examination efficiency and accurate
Degree, solves that the invoice data due to caused by this body structure of PDF is difficult to extract, invoice is difficult to the problems such as checking, and the present invention is unique
Technical advantage by power-assisted its future in multiple necks such as electronic invoice, electronic government documents, file administration, electronics license, digital printings
Domain, solving practical problems realize great-leap-forward development.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is the process according to the electronic invoice checking method 100 based on OFD formatted file of embodiment of the present invention
Figure；
Fig. 2 is the electronic invoice that OFD format to be checked is opened in a manner of compressed package according to embodiment of the present invention
Hierarchical organization structure figure；
Fig. 3 is according to the critical field title of embodiment of the present invention and the corresponding diagram of ID value；
Fig. 4 is the flow chart according to the acquisition Electronic Signature data of embodiment of the present invention；
Fig. 5 is the flow chart according to the verifying invoice signature information of embodiment of the present invention；
Fig. 6 is to be shown according to the structure of the electronic invoice checking system 600 based on OFD formatted file of embodiment of the present invention
It is intended to.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is the process according to the electronic invoice checking method 100 based on OFD formatted file of embodiment of the present invention
Figure.The electronic invoice checking method based on OFD formatted file that embodiments of the present invention provide, it is to be checked by obtaining
The electronic invoice of OFD format；The electronic invoice of the OFD format to be checked of acquisition is parsed, obtain invoice metadata and
Invoice signature information；The information accuracy of the invoice metadata is verified；When the information for confirming the invoice metadata
After accuracy is by verifying, the information accuracy of the invoice signature information is verified, to check OFD format to be checked
Electronic invoice the true and false.OFD file only need to be uploaded in the technical solution that embodiments of the present invention provide, after several seconds
The examination of acquisition invoice can reach second grade as a result, invoice checks rate, manual compared to current needs to fill in invoice number, invoice
Code, the date of making out an invoice, the cumbersome invoice of multiple fields such as tax included price, identifying code does not check mode, greatly improves examination effect
Rate and accuracy, solve that the invoice data due to caused by this body structure of PDF is difficult to extract, invoice is difficult to the problems such as checking, this
Unique technical advantage will be invented by its future of power-assisted in electronic invoice, electronic government documents, file administration, electronics license, digital printing
Etc. multiple fields, solving practical problems, realize great-leap-forward development.Embodiments of the present invention provide based on OFD formatted file
Electronic invoice checking method 100 since step 101 place, the electronic invoice of OFD format to be checked is obtained in step 101.
Preferably, in step 102, the electronic invoice of the OFD format to be checked of acquisition is parsed, obtains invoice member
Data and invoice signature information.
Preferably, wherein the invoice metadata includes: the corresponding number ID value of critical field and invoice data；The pass
Key field includes at least one of the following: invoice codes, invoice number, invoice amount and check code.
Preferably, wherein benefit obtains invoice metadata with the following method:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package, obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice for the OFD format tested；
Read at least one critical field pair in the subfile for describing critical field and number ID value corresponding relationship
The number ID value answered；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one
The corresponding number ID value of critical field determines corresponding invoice data.
Preferably, wherein benefit obtains invoice signature information with the following method:
It reads the subfile for describing signature information and obtains invoice signature information.
In embodiments of the present invention, OFD file is obtained first, is opened and is read in the form of compressed package and wherein stored
Critical field and the XML file of number ID value corresponding relationship are to obtain invoice codes, invoice number, invoice amount and check code
Etc. critical fielies specific ID, then according to the ID value of critical field description critical field number ID value and invoice data pair
Invoice data is found in the subfile that should be related to, is corresponded to critical field and invoice data by ID value.For example it sends out, invoice
The ID value of code is 21, and finding the actual invoice data of invoice codes by ID=21 is 3100174320, such invoice codes
It is just mapped with 3100174320, and returns to the invoice metadata of all critical fielies in OFD file.
Fig. 2 is the electronic invoice that OFD format to be checked is opened in a manner of compressed package according to embodiment of the present invention
Hierarchical organization structure figure.As shown in Fig. 2, by taking layout files test2017.ofd as an example.The mode of first step compressed package is beaten
Open file includes OFD.xml and Doc_0 in file, and wherein OFD.xml is the main-inlet file of test2017.ofd, have and
Only one, title can not be modified.Doc_0 is the file of No. 0 document of test2017.ofd, further opens Doc_0
File, the file that file includes are as shown in Figure 2.Custom Tag is that description critical field (node) title is corresponding with ID value
The file of relationship, x.xml are the file for describing node and number ID value corresponding relationship, CustomTags.xml mark node name
Claim the position where xml document corresponding with ID value, Document.xml is the root node of document, DocumentRes.xml mark
The corresponding ID value of each nodename of will resource file, PublicRes.xml are the index of document public resource, and Res is money
Source folder, Pages are then the document files folder of paging；Content.xml is the number ID value and invoice data for describing node
The file of corresponding relationship.Second step reads the corresponding ID value of critical field in x.xml, as shown in Figure 3.Third step is further beaten
Pages file is opened, Content.xml file is read, according to the ID value for the critical field that second step is read, finds corresponding hair
Ticket data.4th step returns to invoice metadata, i.e., all critical fielies and corresponding invoice data in OFD file.Pass through reading
File signature.xml for describing signature information obtains invoice signature information.
Preferably, in step 103, the information accuracy of the invoice metadata is verified；Wherein, if the invoice
The information accuracy of metadata then enters step 104 by verifying；Conversely, the electricity of the directly confirmation OFD format to be checked
Sub- invoice is false invoice.
Preferably, wherein the information accuracy to the invoice metadata is verified, comprising: by the invoice member
The electronic invoice data stored in data and soft KEY compares, if comparing result is consistent, confirms the invoice metadata
Information accuracy is verified, conversely, then confirming that the information accuracy verifying of the invoice metadata does not pass through.
Soft KEY is equivalent to the u shield of Internetbank, but is not hardware device, is a software, it stores the correlation of electronic invoice
Data.If include in invoice metadata the invoice data that is stored in the corresponding invoice data of any one critical field and soft KEY not
Unanimously, then the electronic invoice that the OFD format of examination can be confirmed is false invoice.If the corresponding hair of each critical field of ticket metadata
The invoice data stored in ticket data and soft KEY is inconsistent, then continues to test the information accuracy of invoice signature information
Card.
Preferably, in step 104, after confirming the information accuracy of the invoice metadata by verifying, to the hair
The information accuracy of ticket signature information is verified；Wherein, if the information accuracy of the invoice signature information is by verifying,
The electronic invoice of the confirmation OFD format to be checked is true invoice；Conversely, then confirming the electricity of the OFD format to be checked
Sub- invoice is false invoice.
Preferably, wherein the information accuracy to the invoice signature information is verified, comprising:
The reasonability of the data format of the invoice signature information is verified；
The correctness of signature value in the invoice signature information is verified；
The validity of seal chapter testimony of a witness book in the invoice signature information is verified；
The validity period of E-seal in the invoice signature information is verified；
The accuracy of summary data in the invoice signature information is verified.
Preferably, wherein the accuracy to the summary data in the invoice signature information is verified, comprising: will
The digest value stored in digest value and soft KEY in the invoice signature information compares, and obtains comparing result.
The stamped signature process of format document OFD formatted file is to add visually in such a way that increment is modified into OFD file
Change the process of seal and Electronic Signature data.The object of signature includes all the elements and resource in entire OFD file, when legal
User to OFD file carry out visualization affix one's seal when, soft KEY calculates digest value and signature value, and then is assembled into Electronic Signature number
According to and be added in OFD file.
Fig. 4 is the flow chart according to the acquisition Electronic Signature data of embodiment of the present invention.As shown in figure 4, detailed process
It include: the validity for verifying stamped signature people digital certificate, verifying content includes certificate revocation list, certificate trust chain etc.；It obtains simultaneously
Verify electronic seal data；Stamped signature people's list of cert in electronic seal data is obtained, and stamped signature people digital certificate is carried out with it
Binary system compares；It obtains original text to be signed and carries out Hash operation, obtain hash value；It is tied substantially according to the XML of OFD signature section
Structure assembles data to be signed, and signs to it；And by the above content according to ASN.1 (Abstract Syntax
Notation One) standard is packaged into Electronic Signature data.
Fig. 5 is the flow chart according to the verifying invoice signature information of embodiment of the present invention.As shown in figure 5, testing chapter process
File and Electronic Signature data are described to obtain the signature of stamped signature OFD file, and literary with this document OFD with storing in soft KEY
The reasonability that detailed process includes: verify data format is compared in part content and the corresponding summary data of resource；Verifying signature
The correctness of value；Verify the validity of seal chapter testimony of a witness book；Verify the validity period of E-seal；And verifying summary data
The digest value stored in digest value and soft KEY in stamped signature OFD file is compared acquisition result by accuracy.If the invoice
The information accuracy of signature information is by verifying, then the electronic invoice of the confirmation OFD format to be checked is true invoice；Instead
It, then the electronic invoice of the confirmation OFD format to be checked is false invoice.
Show that the technical solution that embodiments of the present invention provide, invoice examination rate can reach the second according to experimental data
Grade.It needs to fill in invoice number, invoice codes, date of making out an invoice, not multiple fields such as tax included price, identifying code manually compared to current
Cumbersome invoice check mode, based on OFD invoice examination scheme implement after, user need to only upload OFD file, after several seconds
Obtain the examination result of invoice.OFD is difficult to extract for the invoice data due to caused by this body structure of PDF, invoice is difficult to check
The problems such as propose effective solution scheme, unique technical advantage will be by its future of power-assisted in electronic invoice, electronic government documents, shelves
The multiple fields such as case management, electronics license, digital printing, solving practical problems realize great-leap-forward development.
Fig. 6 is to be shown according to the structure of the electronic invoice checking system 600 based on OFD formatted file of embodiment of the present invention
It is intended to.As shown in fig. 6, the electronic invoice checking system 600 based on OFD formatted file that embodiments of the present invention provide, packet
Include: invoice acquiring unit 601, data capture unit 602, invoice metadata validation unit 603 and the verifying of invoice signature information are single
Member 604.
Preferably, the invoice acquiring unit 601, for obtaining the electronic invoice of OFD format to be checked.
Preferably, the data capture unit 602, the electronic invoice for the OFD format to be checked to acquisition carry out
Parsing obtains invoice metadata and invoice signature information.
Preferably, wherein the invoice metadata includes: the corresponding number ID value of critical field and invoice data；The pass
Key field includes at least one of the following: invoice codes, invoice number, invoice amount and check code.
Preferably, wherein in the data capture unit, invoice metadata is obtained using following system:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package, obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice for the OFD format tested；
Read at least one critical field pair in the subfile for describing critical field and number ID value corresponding relationship
The number ID value answered；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one
The corresponding number ID value of critical field determines corresponding invoice data.
Preferably, wherein in the data capture unit, invoice signature information is obtained using following system:
It reads the subfile for describing signature information and obtains invoice signature information.
Preferably, the invoice metadata validation unit 603 is carried out for the information accuracy to the invoice metadata
Verifying.Wherein, if the information accuracy of the invoice metadata enters invoice signature information authentication unit 604 by verifying；
Conversely, the electronic invoice of the directly confirmation OFD format to be checked is false invoice.
Preferably, wherein the invoice metadata validation unit 603, carries out the information accuracy of the invoice metadata
Verifying, comprising: the electronic invoice data stored in the invoice metadata and soft KEY is compared, if comparing result is consistent,
Then confirm that the information accuracy of the invoice metadata is verified, conversely, then confirming that the information of the invoice metadata is accurate
Property verifying do not pass through.
Preferably, the invoice signature information authentication unit 604 confirms that the information of the invoice metadata is accurate for working as
Property by verifying after, the information accuracy of the invoice signature information is verified.Wherein, if the invoice signature information
Information accuracy is by verifying, then the electronic invoice of the confirmation OFD format to be checked is true invoice；Conversely, then confirming institute
The electronic invoice for stating OFD format to be checked is false invoice.
Preferably, wherein the invoice signature information authentication unit 604, to the information accuracy of the invoice signature information
It is verified, comprising: data format soundness verification module 6041, signature value verification of correctness module 6042, seal certificate have
Effect property authentication module 6043, E-seal validity verification module 6044 and summary data Accuracy Verification module 6045.
Preferably, the data format soundness verification module 6041, for the data lattice to the invoice signature information
The reasonability of formula is verified.
Preferably, the signature value verification of correctness module 6042, for signature value in the invoice signature information
Correctness is verified.
Preferably, the seal certificate validity authentication module 6043, for seal system in the invoice signature information
The validity of chapter testimony of a witness book is verified.
Preferably, the E-seal validity verification module 6044, for electronic seal in the invoice signature information
The validity period of chapter is verified.
Preferably, the summary data Accuracy Verification module 6045, for the abstract in the invoice signature information
The accuracy of data is verified.
Preferably, wherein the summary data Accuracy Verification module 6045, to the abstract in the invoice signature information
The accuracy of data is verified, comprising: by the digest value that stores in the digest value and soft KEY in the invoice signature information into
Row comparison, and obtain comparing result.
The electronic invoice checking system 600 based on OFD formatted file of the embodiment of the present invention and of the invention another
The electronic invoice checking method 100 based on OFD formatted file of embodiment is corresponding, and details are not described herein.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (14)
1. a kind of electronic invoice checking method based on OFD formatted file, which is characterized in that the described method includes:
Step 1, the electronic invoice of OFD format to be checked is obtained；
Step 2, the electronic invoice of the OFD format to be checked of acquisition is parsed, obtains invoice metadata and invoice stamped signature
Information；
Step 3, the information accuracy of the invoice metadata is verified；Wherein, if the information of the invoice metadata is quasi-
True property then enters step 4 by verifying；Conversely, the electronic invoice of the directly confirmation OFD format to be checked is false invoice；
Step 4, after confirming the information accuracy of the invoice metadata by verifying, to the information of the invoice signature information
Accuracy is verified；Wherein, if the information accuracy of the invoice signature information is by verifying, confirmation is described to be checked
The electronic invoice of OFD format is true invoice；Conversely, then the electronic invoice of the confirmation OFD format to be checked is false invoice.
2. the method according to claim 1, wherein the invoice metadata includes: the corresponding volume of critical field
Number ID value and invoice data；The critical field includes at least one of the following: invoice codes, invoice number, invoice amount
And check code.
3. according to the method described in claim 2, it is characterized in that, benefit obtains invoice metadata with the following method:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice of OFD format；
It reads corresponding at least one critical field in the subfile of number ID value corresponding relationship for describing critical field
Number ID value；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one key
The corresponding number ID value of field determines corresponding invoice data.
4. the method according to claim 1, wherein benefit obtains invoice signature information with the following method:
It reads the subfile for describing signature information and obtains invoice signature information.
5. the method according to claim 1, wherein the information accuracy to the invoice metadata carries out
Verifying, comprising:
The electronic invoice data stored in the invoice metadata and soft KEY is compared, if comparing result is consistent, is confirmed
The information accuracy of the invoice metadata is verified, conversely, then confirming the information accuracy verifying of the invoice metadata
Do not pass through.
6. the method according to claim 1, wherein the information accuracy to the invoice signature information into
Row verifying, comprising:
The reasonability of the data format of the invoice signature information is verified；
The correctness of signature value in the invoice signature information is verified；
The validity of seal chapter testimony of a witness book in the invoice signature information is verified；
The validity period of E-seal in the invoice signature information is verified；
The accuracy of summary data in the invoice signature information is verified.
7. according to right to go 6 described in method, which is characterized in that the summary data in the invoice signature information
Accuracy is verified, comprising:
The digest value stored in digest value and soft KEY in the invoice signature information is compared, and obtains comparing result.
8. a kind of electronic invoice checking system based on OFD formatted file, which is characterized in that the system comprises:
Invoice acquiring unit, for obtaining the electronic invoice of OFD format to be checked；
Data capture unit, the electronic invoice for the OFD format to be checked to acquisition parse, and obtain invoice metadata
With invoice signature information；
Invoice metadata validation unit is verified for the information accuracy to the invoice metadata；Wherein, if the hair
The information accuracy of ticket metadata then enters invoice signature information authentication unit by verifying；Conversely, directly confirming described to be checked
The electronic invoice for the OFD format tested is false invoice；
Invoice signature information authentication unit, after for the information accuracy when the confirmation invoice metadata by verifying, to institute
The information accuracy for stating invoice signature information is verified；Wherein, if the information accuracy of the invoice signature information is by testing
Card, then the electronic invoice of the confirmation OFD format to be checked is true invoice；Conversely, then confirming the OFD format to be checked
Electronic invoice be false invoice.
9. system according to claim 8, which is characterized in that the invoice metadata includes: the corresponding volume of critical field
Number ID value and invoice data；The critical field includes at least one of the following: invoice codes, invoice number, invoice amount
And check code.
10. system according to claim 9, which is characterized in that in the data capture unit, obtained using following system
Invoice metadata:
The electronic invoice that the OFD format to be checked is opened in a manner of compressed package obtains described to be checked for describing
Multiple subfiles of the data information of the electronic invoice of OFD format；
It reads corresponding at least one critical field in the subfile of number ID value corresponding relationship for describing critical field
Number ID value；
It reads for describing the number ID value of critical field and the subfile of invoice data corresponding relationship, according at least one key
The corresponding number ID value of field determines corresponding invoice data.
11. system according to claim 8, which is characterized in that in the data capture unit, obtained using following system
Invoice signature information:
It reads the subfile for describing signature information and obtains invoice signature information.
12. system according to claim 8, which is characterized in that the invoice metadata validation unit, to the invoice member
The information accuracy of data is verified, comprising:
The electronic invoice data stored in the invoice metadata and soft KEY is compared, if comparing result is consistent, is confirmed
The information accuracy of the invoice metadata is verified, conversely, then confirming the information accuracy verifying of the invoice metadata
Do not pass through.
13. system according to claim 8, which is characterized in that the invoice signature information authentication unit, to the invoice
The information accuracy of signature information is verified, comprising:
Data format soundness verification module, the reasonability for the data format to the invoice signature information are verified；
Signature value verification of correctness module is verified for the correctness to signature value in the invoice signature information；
Seal certificate validity authentication module is carried out for the validity to seal chapter testimony of a witness book in the invoice signature information
Verifying；
E-seal validity verification module is verified for the validity period to E-seal in the invoice signature information；
Summary data Accuracy Verification module is tested for the accuracy to the summary data in the invoice signature information
Card.
14. according to right to go 13 described in system, which is characterized in that the summary data Accuracy Verification module, to described
The accuracy of summary data in invoice signature information is verified, comprising:
The digest value stored in digest value and soft KEY in the invoice signature information is compared, and obtains comparing result.
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| CN114385248A (en) * | 2020-10-22 | 2022-04-22 | 四零四科技股份有限公司 | Computing system and device for processing trust chain |
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| CN113743959A (en) * | 2021-08-30 | 2021-12-03 | 远光软件股份有限公司 | Method for verifying OFD electronic invoice signature, computer device and computer readable storage medium |
| CN113988793A (en) * | 2021-10-26 | 2022-01-28 | 黑龙江航天信息有限公司 | Method and system for checking value-added tax electronic invoice |
| CN114267114A (en) * | 2021-12-27 | 2022-04-01 | 建信金融科技有限责任公司 | Method, device, electronic equipment and computer readable medium for checking electronic bill |
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Application publication date: 20190326 |