CN115859319A - Method, device and storage medium for signing and sealing electronic documents - Google Patents

Abstract

The invention provides a signing and sealing method, a device and a storage medium of an electronic document, wherein the method comprises the following steps: acquiring electronic documents which are not signed and sealed from an electronic document database, and acquiring type identification of each electronic document; dividing the obtained electronic documents which are not signed and sealed into N electronic document sets based on the type identification of the electronic documents; selecting the jth electronic document in the ith electronic document set, acquiring the authority of a signer, acquiring signature coordinates and stamping coordinates of the signer, generating an electronic signature of the signer on the electronic document based on the signature coordinates, generating an electronic seal on the electronic document based on the stamping coordinates, and loading the stored electronic signature image and electronic seal image on the rest of the electronic documents based on the signature coordinates and the stamping coordinates so as to finish signing and stamping the rest of the electronic documents. The efficiency and the security of signature seal have been improved.

Description

Method, device and storage medium for signing and sealing electronic documents

technical field

The invention relates to the technical field of data security, in particular to a method, device and storage medium for signing and sealing electronic documents.

Background technique

In the existing technology, the signature and stamping of electronic documents cannot automatically obtain the signing position according to the type of document, causing the signer to manually search for the signing position, which is time-consuming and laborious, and cannot be completed in one operation; electronic seals are generally saved In the local ukey, the security is relatively low.

In the prior art, it is impossible to realize the signature and stamping of batches of the same type of documents, which leads to the need for the signer to repeat the work, and the efficiency is low.

In the prior art, signature images of different signers exist together, resulting in poor security.

Contents of the invention

In view of one or more technical defects in the above-mentioned prior art, the present invention proposes the following technical solutions.

A method for signing and sealing an electronic document, the method comprising:

The obtaining step is to obtain unsigned and sealed electronic documents from the electronic document database, and obtain the type identification of each electronic document;

In the clustering step, based on the type identification of the electronic documents, the obtained unsigned and sealed electronic documents are divided into N electronic document sets, wherein the electronic documents in each electronic document set are of the same type, and each electronic document set has M electronic documents, N≥1, M≥1;

In the signing step, select the j-th electronic document in the i-th electronic document set, obtain the authority of the signer, obtain the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, and obtain the signature coordinates of the signer based on the signature coordinates in the Generate the electronic signature of the signer on the electronic document, and save the image of the electronic signature, wherein, N≥i≥1, M≥j≥1;

The stamping step is to obtain the seal coordinates based on the type of the electronic document and obtain the electronic seal corresponding to the electronic document type from the cloud server, generate an electronic seal on the electronic document based on the stamp coordinates, and transfer the electronic seal to the electronic document. Save the stamp image;

The batch processing step is to determine whether M-1 is greater than 0, and if so, load the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates for the rest of the electronic documents in the i-th electronic document set, to Complete the signing and stamping of the rest of the electronic documents.

Furthermore, the operation of obtaining the signing authority is: when the signer logs into the signing system, obtain the corresponding signing authority according to the signer's account.

Furthermore, the operation of obtaining the signature coordinates of the signer based on the authority of the signer and the type of the electronic document is: find all the positions that need to be signed in the electronic document, match the authority of the signer with each signature position, and match Successful locations serve as signed coordinates.

Further, the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server is: sending the type identification of the electronic document to the cloud server, and the cloud server searches for the corresponding electronic seal based on the type identification, and sends the The above electronic seal is encrypted and returned.

Furthermore, after the electronic seal is generated on the electronic document based on the seal coordinates, the electronic document is sent to the cloud server for verification of the electronic seal, and if the verification passes, the electronic seal is valid, otherwise it is invalid.

Furthermore, the operation of electronic seal verification is: matching the image of the electronic seal extracted from the electronic document with the image of the electronic seal stored in the cloud server, if the matching is successful, the verification is passed; otherwise, the verification is not passed.

Further, the operation of saving the electronic signature image is: open up a memory space in the memory based on the authority of the signer, set the read and write authority of the memory space to the signer, and encrypt the electronic signature image After the memory space exists.

Further, the operation of saving the image of the electronic seal is: judging whether the remaining space of the memory space can store the image of the electronic seal, if yes, directly encrypting the image of the electronic seal and storing it in the memory space, if not , calling the authority of the signer to expand the memory space, and after the expansion, the electronic seal image is encrypted and stored in the expanded memory space.

The present invention also proposes a device for signing and sealing electronic documents, which device includes:

The acquiring unit acquires unsigned and sealed electronic documents from the electronic document database, and obtains the type identification of each electronic document;

The clustering unit divides the obtained unsigned and sealed electronic documents into N electronic document sets based on the type identification of the electronic documents, wherein the electronic documents in each electronic document set are of the same type, and each electronic document set has M electronic documents, N≥1, M≥1;

The signing unit selects the j-th electronic document in the i-th electronic document set, obtains the authority of the signer, obtains the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, and based on the signature coordinates in the Generate the electronic signature of the signer on the electronic document, and save the image of the electronic signature, wherein, N≥i≥1, M≥j≥1;

The stamping unit obtains the seal coordinates based on the type of the electronic document and obtains the electronic seal corresponding to the electronic document type from the cloud server, generates an electronic seal on the electronic document based on the stamp coordinates, and sends the electronic seal to the electronic document. Save the stamp image;

The batch processing unit determines whether M-1 is greater than 0, and if so, loads the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates for the rest of the electronic documents in the i-th electronic document set, to Complete the signing and stamping of the rest of the electronic documents.

Furthermore, the operation of obtaining the signing authority is: when the signer logs into the signing system, obtain the corresponding signing authority according to the signer's account.

Furthermore, the operation of obtaining the signature coordinates of the signer based on the authority of the signer and the type of the electronic document is: find all the positions that need to be signed in the electronic document, match the authority of the signer with each signature position, and match Successful locations serve as signed coordinates.

Further, the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server is: sending the type identification of the electronic document to the cloud server, and the cloud server searches for the corresponding electronic seal based on the type identification, and sends the The above electronic seal is encrypted and returned.

Furthermore, after the electronic seal is generated on the electronic document based on the seal coordinates, the electronic document is sent to the cloud server for verification of the electronic seal, and if the verification passes, the electronic seal is valid, otherwise it is invalid.

Furthermore, after the electronic seal is generated on the electronic document based on the seal coordinates, the electronic document is sent to the cloud server for verification of the electronic seal, and if the verification passes, the electronic seal is valid, otherwise it is invalid.

Furthermore, the operation of electronic seal verification is: matching the image of the electronic seal extracted from the electronic document with the image of the electronic seal stored in the cloud server, if the matching is successful, the verification is passed; otherwise, the verification is not passed.

Further, the operation of saving the electronic signature image is: open up a memory space in the memory based on the authority of the signer, set the read and write authority of the memory space to the signer, and encrypt the electronic signature image After the memory space exists;

Further, the operation of saving the image of the electronic seal is: judging whether the remaining space of the memory space can store the image of the electronic seal, if yes, directly encrypting the image of the electronic seal and storing it in the memory space, if not , calling the authority of the signer to expand the memory space, and after the expansion, the electronic seal image is encrypted and stored in the expanded memory space.

The present invention also proposes a computer-readable storage medium, on which computer program codes are stored, and when the computer program codes are executed by a computer, any one of the above-mentioned methods is executed.

The technical effect of the present invention lies in: a method, device and storage medium for signing and affixing an electronic document according to the present invention, the method includes: acquiring step S101, obtaining an electronic document that has not been signed and affixed a seal from the electronic document database, And obtain the type identification of each electronic document; clustering step S102, based on the type identification of the electronic document, divide the obtained unsigned and stamped electronic documents into N electronic document sets, wherein the electronic documents in each electronic document set The documents are of the same type, and there are M electronic documents in each electronic document set, N≥1, M≥1; signing step S103, select the j-th electronic document in the i-th electronic document set, and obtain the authority of the signer, based on The authority of the signatory and the type of the electronic document obtain the signature coordinates of the signatory, generate the electronic signature of the signatory on the electronic document based on the signature coordinates, and save the electronic signature image, wherein, N≥ i≥1, M≥j≥1; stamping step S104, based on the type of the electronic document to obtain the seal coordinates and obtain the electronic seal corresponding to the electronic document type from the cloud server, based on the stamp coordinates in the electronic Generate an electronic seal on the document, and save the image of the electronic seal; batch processing step S105, judge whether M-1 is greater than 0, if yes, for the remaining electronic documents in the i-th electronic document set based on the signature Coordinates and seal coordinates Load the saved electronic signature image and electronic seal image to complete the signature and seal of the rest of the electronic documents. In the present invention, multiple electronic documents to be signed and sealed are first clustered according to types, and the electronic documents in each set after clustering are electronic documents of the same type, and then any electronic document among them is based on signature Obtain the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, generate the electronic signature of the signer on the electronic document based on the signature coordinates, and save the electronic signature image, based on the electronic document Type obtains the seal coordinates and obtains the electronic seal corresponding to the electronic document type from the cloud server, generates an electronic seal on the electronic document based on the seal coordinates, and saves the image of the electronic seal, and finally the electronic seal For the remaining electronic documents in the document collection, load the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates to complete the signing and sealing of the remaining electronic documents, thereby improving the efficiency of electronic signature and sealing. Efficiency, and ensure that the position of signature and seal is correct; In the present invention, multiple electronic documents to be signed and sealed are clustered according to types, and the electronic documents in each set after clustering are of the same type electronic documents, and then obtain the signer’s signature coordinates for any one of the electronic documents based on the signer’s authority and the type of the electronic document, and generate the signer’s electronic signature on the electronic document based on the signature coordinates, and saving the electronic signature image, obtaining the seal coordinates based on the type of the electronic document and obtaining the electronic seal corresponding to the electronic document type from the cloud server, and generating an electronic seal on the electronic document based on the seal coordinates, And save the electronic seal image, and finally load the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates for the rest of the electronic documents in the electronic document collection, so as to complete the rest of the electronic documents signature and seal, thereby improving the efficiency of electronic signature and seal, and ensuring that the position of signature and seal is accurate; in the present invention, the images of electronic signature and electronic seal are temporarily stored in the In the memory space, the memory space can only be accessed by the signer. If a document has multiple signers, the image of the electronic seal is saved in the memory space of the signer with the highest authority, and the electronic signature images of the rest of the signers correspond to It is stored in the memory space corresponding to the respective authority, thus ensuring the security of the electronic signature image of each signer and improving the security of the signature system.

Description of drawings

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

Fig. 1 is a flowchart of a method for signing and affixing an electronic document according to an embodiment of the present invention.

Fig. 2 is a structural diagram of a device for signing and affixing an electronic document according to an embodiment of the present invention.

Detailed ways

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Fig. 1 shows a method for signing and sealing an electronic document of the present invention, the method comprising:

Obtaining step S101, obtaining unsigned and sealed electronic documents from the electronic document database, and obtaining the type identification of each electronic document;

Clustering step S102, based on the type identification of the electronic documents, the obtained unsigned and sealed electronic documents are divided into N electronic document sets, wherein the electronic documents in each electronic document set are of the same type, and each electronic document set Have M electronic documents, N≥1, M≥1;

Signing step S103, select the j-th electronic document in the i-th electronic document set, obtain the authority of the signer, and obtain the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, and based on the signature coordinates in the Generate the electronic signature of the signer on the electronic document, and save the image of the electronic signature, wherein, N≥i≥1, M≥j≥1;

Stamping step S104: Obtain the seal coordinates based on the type of the electronic document and obtain the electronic seal corresponding to the electronic document type from the cloud server, generate an electronic seal on the electronic document based on the seal coordinates, and send the Save the electronic seal image;

Batch processing step S105, judging whether M-1 is greater than 0, if so, loading the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates for the remaining electronic documents in the i-th electronic document set, To complete the signature and seal of the rest of the electronic documents.

In the present invention, multiple electronic documents to be signed and sealed are first clustered according to types, and the electronic documents in each set after clustering are electronic documents of the same type, and then any electronic document among them is based on signature Obtain the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, generate the electronic signature of the signer on the electronic document based on the signature coordinates, and save the electronic signature image, based on the electronic document Type obtains the seal coordinates and obtains the electronic seal corresponding to the electronic document type from the cloud server, generates an electronic seal on the electronic document based on the seal coordinates, and saves the image of the electronic seal, and finally the electronic seal For the remaining electronic documents in the document collection, load the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates to complete the signing and sealing of the remaining electronic documents, thereby improving the efficiency of electronic signature and sealing. Efficiency, and ensure that the position of signature and seal is accurate, this is an important invention point of the present invention.

In one embodiment, the operation of obtaining the signing authority is: when the signer logs into the signing system, obtain the corresponding signing authority according to the account number of the signer. The user (ie the signer) can log in to the signing system through verification methods such as SMS verification code, password, ukey, etc.

In one embodiment, the operation of obtaining the signature coordinates of the signer based on the authority of the signer and the type of the electronic document is as follows: find all the positions that need to be signed in the electronic document, and match the authority of the signer with each signature position , the location of the successful match is used as the signature coordinates. For example, in an electronic document, there are multiple positions that need to be signed, that is, a document requires multiple people to sign, and the text expression at the signature position describes the authority of the signer, and the text and the authority of the signer are combined. Matching, after the matching is successful, save the position as the coordinates of the signature, thereby improving the speed and accuracy of the subsequent electronic signature, which is another important invention point of the present invention.

In one embodiment, the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server is: sending the type identification of the electronic document to the cloud server, and the cloud server searches for the corresponding electronic seal based on the type identification, and The electronic seal is encrypted and returned, and the electronic seal needs to be decrypted and used after being encrypted and returned to the signature system. In the present invention, the corresponding electronic seal is obtained based on the type of the document, thereby ensuring the accuracy of the seal and improving the electronic seal. The efficiency of adding a cover is another important invention point of the present invention.

In one embodiment, after the electronic seal is generated on the electronic document based on the seal coordinates, the electronic document is sent to the cloud server for verification of the electronic seal. If the verification passes, the electronic seal is valid, otherwise it is invalid. Wherein, the operation of the verification of the electronic seal is: matching the image of the electronic seal extracted from the electronic document with the image of the electronic seal stored in the cloud server, if the matching is successful, the verification is passed; otherwise, the verification is not passed. The matching method can be carried out by convolutional neural network or other methods such as picture matching. In the present invention, after the electronic seal is affixed, a verification operation is added to prevent the electronic seal from being returned to the signature system from the cloud server. Tampering improves the security of the electronic seal, which is another important invention point of the present invention. It can be seen that in this embodiment, the generation and verification of the electronic seal can be completed in one step.

In one embodiment, the operation of saving the electronic signature image is: open up a memory space in the memory based on the authority of the signer, set the read and write authority of the memory space to the signer, and save the electronic signature There is this memory space after image encryption; The operation that described electronic seal image is preserved is: judge whether this memory space remaining space can store this electronic seal image, if yes, then store in this internal memory after directly encrypting this electronic seal image space, if not, call the authority of the signer to expand the memory space, and then encrypt the electronic seal image and store it in the expanded memory space.

In the present invention, the images of the electronic signature and the electronic seal are temporarily stored in the memory space opened by the corresponding signer's authority, and the memory space is only accessed by the signer's authority. The image is stored in the memory space of the signer with the highest authority, and the electronic signature images of the rest of the signers are correspondingly stored in the memory space corresponding to their respective authority. In this way, the security of the electronic signature image of each signer is ensured and the signature is improved. The security of system, this is another important invention point of the present invention.

Fig. 2 shows a device for signing and sealing an electronic document according to the present invention, which device includes:

Obtaining unit 201, which acquires unsigned and sealed electronic documents from the electronic document database, and obtains the type identification of each electronic document;

The clustering unit 202 divides the acquired unsigned and sealed electronic documents into N electronic document sets based on the type identification of the electronic documents, wherein the electronic documents in each electronic document set are of the same type, and each electronic document set Have M electronic documents, N≥1, M≥1;

The signing unit 203 selects the j-th electronic document in the i-th electronic document set, obtains the authority of the signer, obtains the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, and obtains the signature coordinates of the signer based on the signature coordinates in the electronic document. Generate the electronic signature of the signer on the electronic document, and save the image of the electronic signature, wherein, N≥i≥1, M≥j≥1;

The stamping unit 204 obtains stamping coordinates based on the type of the electronic document and obtains the electronic seal corresponding to the electronic document type from the cloud server, generates an electronic seal on the electronic document based on the stamping coordinates, and sends the Save the electronic seal image;

The batch processing unit 205 judges whether M-1 is greater than 0, and if so, loads the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates for the remaining electronic documents in the i-th electronic document set, To complete the signature and seal of the rest of the electronic documents.

In the present invention, multiple electronic documents to be signed and sealed are first clustered according to types, and the electronic documents in each set after clustering are electronic documents of the same type, and then any electronic document among them is based on signature Obtain the signature coordinates of the signer based on the authority of the signer and the type of the electronic document, generate the electronic signature of the signer on the electronic document based on the signature coordinates, and save the electronic signature image, based on the electronic document Type obtains the seal coordinates and obtains the electronic seal corresponding to the electronic document type from the cloud server, generates an electronic seal on the electronic document based on the seal coordinates, and saves the image of the electronic seal, and finally the electronic seal For the remaining electronic documents in the document collection, load the saved electronic signature image and electronic seal image based on the signature coordinates and seal coordinates to complete the signing and sealing of the remaining electronic documents, thereby improving the efficiency of electronic signature and sealing. Efficiency, and ensure that the position of signature and seal is accurate, this is an important invention point of the present invention.

In one embodiment, in order to improve the transmission efficiency and security, the application of the electronic seal is completed by transmitting the unique code of the electronic seal, that is: the cloud server does not need to transmit the electronic seal every time, but when registering the settlement document, firstly from the cloud The server applies for the unique code of the electronic seal, and then stores it in the electronic document, and transmits the unique code every time it is signed.

In one embodiment, the operation of obtaining the signing authority is: when the signer logs into the signing system, obtain the corresponding signing authority according to the account number of the signer. The user (ie the signer) can log in to the signing system through verification methods such as SMS verification code, password, ukey, etc.

In one embodiment, the operation of obtaining the signature coordinates of the signer based on the authority of the signer and the type of the electronic document is as follows: find all the positions that need to be signed in the electronic document, and match the authority of the signer with each signature position , the location of the successful match is used as the signature coordinates. For example, in an electronic document, there are multiple positions that need to be signed, that is, a document requires multiple people to sign, and the text expression at the signature position describes the authority of the signer, and the text and the authority of the signer are combined. Matching, after the matching is successful, save the position as the coordinates of the signature, thereby improving the speed and accuracy of the subsequent electronic signature, which is another important invention point of the present invention.

In one embodiment, the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server is: sending the type identification of the electronic document to the cloud server, and the cloud server searches for the corresponding electronic seal based on the type identification, and The electronic seal is encrypted and returned, and the electronic seal needs to be decrypted and used after being encrypted and returned to the signature system. In the present invention, the corresponding electronic seal is obtained based on the type of the document, thereby ensuring the accuracy of the seal and improving the electronic seal. The efficiency of adding a cover is another important invention point of the present invention.

In one embodiment, after the electronic seal is generated on the electronic document based on the seal coordinates, the electronic document is sent to the cloud server for verification of the electronic seal. If the verification passes, the electronic seal is valid, otherwise it is invalid. Wherein, the operation of the verification of the electronic seal is: matching the image of the electronic seal extracted from the electronic document with the image of the electronic seal stored in the cloud server, if the matching is successful, the verification is passed; otherwise, the verification is not passed. The matching method can be carried out by convolutional neural network or other methods such as picture matching. In the present invention, after the electronic seal is affixed, a verification operation is added to prevent the electronic seal from being returned to the signature system from the cloud server. Tampering improves the security of the electronic seal, which is another important invention point of the present invention.

In one embodiment, the operation of saving the electronic signature image is: open up a memory space in the memory based on the authority of the signer, set the read and write authority of the memory space to the signer, and save the electronic signature There is this memory space after image encryption; The operation that described electronic seal image is preserved is: judge whether this memory space remaining space can store this electronic seal image, if yes, then store in this internal memory after directly encrypting this electronic seal image space, if not, call the authority of the signer to expand the memory space, and then encrypt the electronic seal image and store it in the expanded memory space.

In the present invention, the images of the electronic signature and the electronic seal are temporarily stored in the memory space opened by the corresponding signer's authority, and the memory space is only accessed by the signer's authority. The image is stored in the memory space of the signer with the highest authority, and the electronic signature images of the rest of the signers are correspondingly stored in the memory space corresponding to their respective authority. In this way, the security of the electronic signature image of each signer is ensured and the signature is improved. The security of system, this is another important invention point of the present invention.

One embodiment of the present invention proposes a computer storage medium, on which a computer program is stored, and when the computer program on the computer storage medium is executed by a processor, the above-mentioned method is realized, and the computer storage medium can It is hard disk, DVD, CD, flash memory and so on.

For the convenience of description in the present invention, when describing the above devices, the functions are divided into various units and described separately. Of course, when implementing the present application, the functions of each unit can be implemented in one or more pieces of software and/or hardware.

It can be known from the above description of the implementation manners that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solution of this application or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM, disk , optical disc, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the apparatus described in various embodiments or some parts of the embodiments of the present application.

Finally, it should be noted that: the above embodiments are only to illustrate and not limit the technical solutions of the present invention, although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be modified or Any modification or partial replacement without departing from the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.

Claims (10)

1. A method of signing and sealing an electronic document, the method comprising:

an acquisition step, acquiring electronic documents which are not signed or stamped from an electronic document database, and acquiring the type identifier of each electronic document;

a clustering step, namely dividing the obtained electronic documents which are not signed and sealed into N electronic document sets based on the type identification of the electronic documents, wherein the electronic documents in each electronic document set are of the same type, M electronic documents are contained in each electronic document set, and N is more than or equal to 1,M and is more than or equal to 1;

signing, namely selecting a jth electronic document in an ith electronic document set, acquiring the authority of a signatory, acquiring the signing coordinate of the signatory based on the authority of the signatory and the type of the electronic document, generating an electronic signature of the signatory on the electronic document based on the signing coordinate, and storing an electronic signature image, wherein N is more than or equal to i and more than or equal to 1,M and more than or equal to j and more than or equal to 1;

a stamping step, namely acquiring a stamping coordinate based on the type of the electronic document, acquiring an electronic stamp corresponding to the type of the electronic document from a cloud server, generating an electronic stamp on the electronic document based on the stamping coordinate, and storing an image of the electronic stamp;

and a batch processing step, namely judging whether the M-1 is larger than 0, and if so, loading the stored electronic signature image and electronic seal image on the other electronic documents in the ith electronic document set based on the signature coordinate and the stamping coordinate so as to finish the signature and stamping of the other electronic documents.

2. Method according to claim 1, characterized in that the operation of obtaining the right to sign is: and when the signatory logs in the signing system, the corresponding signing authority is obtained according to the account number of the signatory.

3. A method as claimed in claim 2, characterized in that the operation of obtaining the signing coordinates of the signatory on the basis of the authority of the signatory and the type of electronic document is: and searching all positions needing signing in the electronic document, matching the authority of the signatory with each signing position, and taking the successfully matched position as a signing coordinate.

4. The method according to claim 3, wherein the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server comprises: and sending the type identifier of the electronic document to a cloud server, searching a corresponding electronic seal by the cloud server based on the type identifier, encrypting the electronic seal and returning the encrypted electronic seal.

5. The method according to claim 4, characterized in that after generating an electronic seal on the electronic document based on the stamping coordinates, the electronic document is sent to a cloud server for electronic seal verification, if the verification is passed, the electronic stamping is valid, otherwise, the electronic stamping is invalid;

the electronic seal verification operation comprises the following steps: matching the electronic seal image extracted from the electronic document with the electronic seal image stored in the cloud server, if the matching is successful, the verification is passed, otherwise, the verification is not passed;

the operation of saving the electronic signature image is as follows: opening up a memory space in the memory based on the authority of the signer, setting the read-write authority of the memory space as the signer, and encrypting the electronic signature image to store the electronic signature image in the memory space;

the operation of storing the electronic seal image is as follows: and judging whether the residual space of the memory space can store the electronic seal image, if so, directly encrypting the electronic seal image and storing the encrypted electronic seal image in the memory space, if not, calling the authority of the signer to expand the memory space, and encrypting the electronic seal image and storing the encrypted electronic seal image in the expanded memory space.

6. A device for signing and sealing an electronic document, the device comprising:

the acquisition unit is used for acquiring electronic documents which are not signed and sealed from the electronic document database and acquiring the type identifier of each electronic document;

the clustering unit is used for dividing the obtained electronic documents without signature and seal into N electronic document sets based on the type identification of the electronic documents, wherein the electronic documents in each electronic document set are of the same type, M electronic documents are contained in each electronic document set, and N is more than or equal to 1,M and is more than or equal to 1;

the signing unit is used for selecting the jth electronic document in the ith electronic document set, acquiring the authority of a signer, acquiring signing coordinates of the signer based on the authority of the signer and the type of the electronic document, generating an electronic signature of the signer on the electronic document based on the signing coordinates, and storing an electronic signature image, wherein N is more than or equal to i and more than or equal to 1,M and more than or equal to j and more than or equal to 1;

the stamping unit is used for acquiring stamping coordinates based on the type of the electronic document, acquiring an electronic stamp corresponding to the type of the electronic document from the cloud server, generating an electronic stamp on the electronic document based on the stamping coordinates, and storing an image of the electronic stamp;

and the batch processing unit is used for judging whether the M-1 is larger than 0, and if so, loading the stored electronic signature image and electronic seal image on the basis of the signature coordinate and the seal coordinate for the rest electronic documents in the ith electronic document set so as to finish the signature and seal of the rest electronic documents.

7. The apparatus of claim 6, wherein the act of obtaining the right to sign is: when a signatory logs in a signing system, acquiring corresponding signing authority according to an account number of the signatory; the operation of acquiring the signing coordinates of the signatory based on the authority of the signatory and the type of the electronic document is as follows: and searching all positions needing signing in the electronic document, matching the authority of the signatory with each signing position, and taking the successfully matched position as a signing coordinate.

8. The apparatus according to claim 7, wherein the operation of obtaining the electronic seal corresponding to the electronic document type from the cloud server is: and sending the type identification of the electronic document to a cloud server, searching a corresponding electronic seal by the cloud server based on the type identification, and returning the electronic seal after encrypting the electronic seal.

9. The apparatus according to claim 8, wherein after generating an electronic seal on the electronic document based on the stamping coordinates, the electronic document is sent to a cloud server for electronic seal verification, and if the verification is passed, the electronic stamping is valid, otherwise the electronic stamping is invalid.

10. A computer storage medium having a computer program stored thereon, the computer program on the computer storage medium, when executed by a processor, implementing the method of any of claims 1-5.

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