CN113742671A - Online collaborative information processing method, system, electronic device and storage medium - Google Patents
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Abstract
The application relates to an online collaborative information processing method, a system, an electronic device and a storage medium, wherein the method comprises the following steps: under the condition that a first user account logs in a first client, the first client acquires a second public key corresponding to a second user account and acquires first information content formed by writing and/or drawing of the first user account on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account; and under the condition that the second user account logs in the second client, the second client acquires a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to acquire the first information content. By the aid of the method and the device, the problem that in the related technology, under the scene that online collaborative information processing is needed, information communication safety between users is low is solved, and the technical effect of improving the information communication safety between the users is achieved.
Description
Technical Field
The present application relates to the field of information processing technologies, and in particular, to an online collaborative information processing method, system, electronic device, and storage medium.
Background
In a traditional information communication mode, paper is often used as a carrier, people perform writing, drawing and other operations on the paper, and the written or drawn paper is transmitted or exchanged between information in field exchange or express mail and other information.
However, when the information communication method faces some scenes with high privacy and confidentiality requirements, high writing cost and transmission cost are needed to protect information from being leaked, and the timeliness and convenience of the information communication method cannot meet the requirements of rapidly developing industries and businesses.
With the continuous development of science and technology, the internet becomes an indispensable part of people's life, and in order to improve the efficiency of information communication of people, scenes such as network courses, network conferences and online offices which need online collaboration are generated, and in such scenes, real-time writing and drawing are often required to be performed online, and the content written or drawn by a user is displayed at a receiving end in real time, so that the requirements of such scenes on the safety and timeliness of information communication are higher.
In the related art, in order to avoid that important information of a user leaks or is misoperated by others, a password is often set for a file created by an electronic device, or an encrypted image is generated through a sliding operation, and then a screen locking password is set for the electronic device. However, in such technical solutions, the decryption password is often stored in the database of the server, and in case of database intrusion, the security of user information exchange is also greatly reduced.
At present, no effective solution is provided for the problem of low security of information exchange between users in a scene requiring on-line cooperative information processing in the related art.
Disclosure of Invention
The embodiment of the application provides an online collaborative information processing method, an online collaborative information processing system, an electronic device and a storage medium, and aims to at least solve the problem that in the related art, in a scene needing online collaborative information processing, the safety of information exchange between users is low.
In a first aspect, an embodiment of the present application provides an online collaborative information processing method, where the method includes: under the condition that a first user account logs in a first client, the first client acquires a second public key corresponding to a second user account and acquires first information content formed by writing and/or drawing of the first user account on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account; and under the condition that the second user account logs in a second client, the second client acquires a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to acquire the first information content.
In some of these embodiments, the first client includes a first canvas and the second client includes a second canvas; the first information content comprises writing information and/or drawing information of the first user account on the first canvas; the method further comprises the following steps: displaying the first information content on the second canvas.
In some embodiments, obtaining the first information content written and/or drawn by the first user account on the first client comprises: the first client acquires input information of the first user account on the first canvas, wherein the input information comprises coordinate information and brush parameter information; and according to the coordinate information and the painting brush parameter information, the first client determines a starting path and positions a starting point on the first painting brush, and selects a painting brush matched with the painting brush parameter information to perform path drawing to generate first information content.
In some of these embodiments, the first canvas comprises an offline template; the obtaining of the first information content formed by the first user account writing and/or drawing on the first client comprises: the first client acquires an encrypted non-online template from a server, wherein the non-online template is encrypted according to a preset encryption algorithm and then stored in the server; the first client decrypts the encrypted non-online template by using a decryption algorithm corresponding to the encryption algorithm to obtain the non-online template; and acquiring input information of the first user account on the non-online template, and generating first information content according to the input information.
In some of these embodiments, the first canvas comprises an online template; the obtaining of the first information content formed by the first user account writing and/or drawing on the first client comprises: the first client acquires an encrypted link address from a server, wherein the link address is encrypted according to a preset encryption algorithm and then stored in the server; the first client decrypts the encrypted link address by using a decryption algorithm corresponding to the encryption algorithm to obtain an online template corresponding to the link address; and acquiring input information of the first user account on the online template, and generating first information content according to the input information.
In some of these embodiments, the method further comprises: under the condition that the second user account logs in the second client, the second client acquires a first public key corresponding to the first user account and acquires second information content formed by writing and/or drawing of the second user account on the second client; the second client encrypts the second information content by using the first public key to generate second encrypted data, and sends the second encrypted data to the first client; and under the condition that the first user account logs in the first client, the first client acquires a first private key corresponding to the first public key, decrypts the second encrypted data by using the first private key, and acquires the second information content.
In some of these embodiments, the first client includes a first canvas and the second client includes a second canvas; the second information content comprises writing information and/or drawing information of the second user account on the second canvas; the method further comprises the following steps: displaying the second information content on the first canvas.
In a second aspect, an embodiment of the present application provides an online collaborative information processing system, including: the system comprises a first client, a second client and a server, wherein the first client, the second client and the server are connected; the first client is used for acquiring a second public key corresponding to a second user account under the condition that a first user account logs in the first client, and acquiring first information content formed by writing and/or drawing the first user account on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and the first encrypted data is sent to a second client corresponding to the second user account through the server; the second client is configured to, when the second client logs in to the second user account, obtain a second private key corresponding to the second public key, and decrypt the first encrypted data using the second private key to obtain the first information content.
In a third aspect, an embodiment of the present application further provides an electronic apparatus, including a memory and a processor, where the memory stores a computer program, and the processor is configured to run the computer program to execute the online collaborative information processing method according to the first aspect.
In a fourth aspect, an embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, where the computer program, when executed by a processor, implements the online collaborative information processing method according to the first aspect.
Compared with the related art, according to the online collaborative information processing method, the online collaborative information processing system, the electronic device and the storage medium provided by the embodiment of the application, when a first user account logs in a first client, the first client acquires a second public key corresponding to a second user account and acquires first information content formed by the first user account writing and/or drawing on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account; under the condition that a second client is logged in by a second user account, the second client acquires a second private key corresponding to the second public key, decrypts the first encrypted data by using the second private key, and acquires the first information content.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a block diagram of an online collaborative information processing system according to an embodiment of the present application;
FIG. 2 is a flow chart of an online collaborative information processing method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Reference herein to "a plurality" means greater than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
Fig. 1 is a block diagram of an online collaborative information processing system according to an embodiment of the present application, and as shown in fig. 1, the system includes: the system comprises a first client 102, a second client 104 and a server 106, wherein the first client 102 is used for acquiring a second public key corresponding to a second user account when a first user account logs in the first client 102, and acquiring a first information content formed by writing and/or drawing the first user account on the first client 102; the first client 102 encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second client 104 corresponding to the second user account through the server 106; the second client 104 is configured to, when the second client 104 logs in the second user account, obtain a second private key corresponding to the second public key, and decrypt the first encrypted data by using the second private key to obtain the first information content.
In this embodiment, the online collaborative information processing system may be embedded in a WEB page preset in a WEB page, an HTML5(HyperText Markup Language 5, HTML5 for short) WEB page, or an APP (Application software, Application for short), or may be embedded in other online websites or projects, the carrier of the first client 102 and the second client 104 may be any carrier that can use a browser through networking, such as a computer, a mobile phone, a tablet, or other devices, and a user needs to register a unique account when logging in the first client 102 or the second client 104, so as to ensure the security of file transmission.
In the above embodiment, a JAVA language may be used to write a login registration system of a user, and when the user registers at the first client 102 or the second client 104, the user encrypts a password of the user and then stores the encrypted password in a preset database, so as to ensure the security of the user account and the password, an MD5(Message Digest Algorithm MD5, abbreviated as MD5) encryption Algorithm may be used to encrypt the password of the user, and when the background verification is performed, it is necessary to detect whether the number of times of registration of the account name is more than one, so as to ensure the uniqueness of the user account name.
In this embodiment, through the dual verification of the server 106 and the platform, the user is prevented from modifying maliciously (such as an unwritable text field, hidden variable tampering, uploading an illegal file, etc.) through a browser and then skipping verification to directly operate the database, wherein all data generated by the user on the first client 102 or the second client 104 need to be subjected to security coding in the server 106, so that the user is prevented from submitting an illegal script or acquiring sensitive data through SQL (Structured Query Language, SQL for short) injection, thereby ensuring the security of the database in the server 106.
In the above embodiment, the first client 102 may serve as an information input end, and the second client 104 may serve as an information receiving end, and similarly, the first client 102 may also serve as an information receiving end, and the second client 104 may also serve as an information input end, and the first client 102 may receive and display information from the second client 104, and the second client 104 may also receive and display information from the first client 102.
Fig. 2 is a flowchart of an online collaborative information processing method according to an embodiment of the present application, and as shown in fig. 2, the method includes:
step S201, when the first user account logs in the first client, the first client obtains the second public key corresponding to the second user account, and obtains the first information content formed by the first user account writing and/or drawing on the first client.
In this embodiment, the first user account and the second user account may exchange public keys of each other on the corresponding platforms, that is, the first user account may obtain a second public key corresponding to the second user account on the first client, and the second user account may also obtain a first public key corresponding to the first user account on the second client.
Step S202, the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account.
Step S203, when the second user account logs in the second client, the second client obtains a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to obtain the first information content.
In this embodiment, the first client includes a first canvas, and the second client includes a second canvas; the first information content comprises writing information and/or drawing information of a first user account on a first canvas; the method also implements the steps of: the first information content is presented on a second canvas.
In this embodiment, the second public key and the second private key, and the first public key and the first private key described later may be generated based on an RSA algorithm, and the generation process of the public key and the private key is implemented by the following steps:
step 1, two different large prime numbers p and q are selected, and the product r of the two is calculated as p q.
And 2, selecting a large integer e, wherein e is relatively prime to (p-1) × (q-1), and the e is used as a public key.
In this embodiment, e can select all prime numbers larger than p and q.
Step 3, determining a private key d, based on the expression: d is determined as 1 module (p-1) q-1.
In this embodiment, after determining the public key e and the private key d, the following expression may be used: and C, encrypting the plaintext P (assuming that P is an integer smaller than r) to obtain a ciphertext C, wherein the plaintext P can be obtained based on an expression P & ltCd modulo r during decryption.
In the above embodiment, the private key d cannot be calculated only from r (the product of P and q) and the public key e, so anyone can encrypt the plaintext P, but only an authorized user (i.e., the user owning the private key d) can decrypt the ciphertext.
In this embodiment, a CA (certificate Authority, CA for short) certificate may also be applied in the server, a signing process needs the participation of the CA certificate and a private key, a digital certificate with a CA signature is finally issued, a certificate signing request is generated in a client that carries a first client and a second client at the same time, the certificate signing request is signed, a digital certificate signed by a substitute CA is issued, a client certificate file and a key file corresponding to the client certificate are combined into a client certificate installation package, and a user is guided to install the installation package into a browser.
Therefore, in this embodiment, only the second client possesses the second private key, the first information content can be decrypted on the second client by using the second private key, the first information content cannot be decrypted by anyone during the transmission process of the first client-server-second client, that is, the third party (including the server, the first client, the second client, and the like) cannot decrypt the first information content, only the second user account knows the second private key, and the first information content can be decrypted by using the second private key in the second client, thereby ensuring the security of information transmission between users.
In this embodiment, the first client serves as an information input end, and the second client serves as an information receiving end to further implement information transmission between the first user account and the second user account.
In some of these embodiments, the method may further perform the steps of:
step 1, under the condition that a second user account logs in a second client, the second client acquires a first public key corresponding to the first user account and acquires second information content formed by writing and/or drawing the second user account on the second client.
And 2, the second client encrypts the second information content by using the first public key to generate second encrypted data, and sends the second encrypted data to the first client.
And 3, under the condition that the first user account logs in the first client, the first client acquires a first private key corresponding to the first public key, and decrypts the second encrypted data by using the first private key to acquire second information content.
In this embodiment, the method further implements the steps of: the second information content is presented on the first canvas.
In this embodiment, the first client serves as an information receiving end, receives second information content from the second client, and displays the second information content, and the first client can also serve as an information receiving end and an information input end at the same time, and sends first information content formed by writing and/or drawing on the first canvas by the first user account to the second client while receiving and displaying the second information content from the second client, and the second client performs display, so that online cooperative work between the first user account and the second user account is realized, and timeliness of information processing between users is improved.
Through the steps S201 to S204, when the first user account logs in the first client, the first client obtains the second public key corresponding to the second user account, and obtains the first information content formed by the first user account writing and/or drawing on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account; and under the condition that the second user account logs in the second client, the second client acquires a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to acquire the first information content. By the aid of the method and the device, the problem that in the related technology, under the scene that online collaborative information processing is needed, information communication safety between users is low is solved, and the technical effect of improving the information communication safety between the users is achieved.
In some embodiments, the first client encrypts the first information content by using the second public key, and the generating of the first encrypted data is implemented by:
step 1, judging whether a second public key exists in the first client.
And 2, under the condition that the second public key exists in the first client, the first client converts the first information content into first character stream data.
And 3, the first client encrypts the first character stream data by using the second public key and a preset encryption algorithm to generate first encrypted data.
In this embodiment, the first information content may include files in various formats, each file in the format includes content written or drawn on the first canvas by the first user account, the first information content may include an online document, a character string, a picture, an offline document, and the like, and the first information content may be uniformly converted into first character stream data encoded by base 64.
In the above embodiment, the preset encryption algorithm may include jsrsaign and MD5 hash algorithms, and the first character stream data may be encrypted by using the second public key based on the jsrsaign and MD5 hash algorithms to generate the first encrypted data, so that the first character stream data is ensured to exist in a ciphertext form in the transmission and storage processes, and the security of the first character stream data in the transmission process is improved by local encryption.
In some embodiments, obtaining the first information content written and/or drawn on the first client by the first user account is realized by the following steps:
step 1, a first client acquires input information of a first user account on a first canvas, wherein the input information comprises coordinate information and brush parameter information.
And step 2, according to the coordinate information and the painting brush parameter information, the first client determines a starting path on the first painting canvas and positions a starting point, and selects a painting brush matched with the painting brush parameter information to perform path drawing to generate first information content.
In this embodiment, the first Canvas may include a Canvas, tags newly added in the HTML5 may be used to generate an image in real time on a webpage, and various operations may be performed on image content, and the Canvas may be operated by JavaScript to implement a drawing board in HTML.
In the above embodiment, the Canvas is used, signature writing can be performed on all devices supporting the browser, that is, according to input information (coordinate information, brush parameter information, and the like) of the first user account on the first Canvas, a starting path is determined and a starting point is located on the first Canvas, and a brush matching the brush parameter information is selected for path drawing, so that the first information content is generated.
In this embodiment, the current Canvas can be rotated by using the rotate function of the Canvas, the rotate defaults to use the upper left corner of the Canvas as the center, if the rotate function needs to use the center position of the Canvas as the center, the origin of coordinates of the Canvas needs to be moved to the center position before the rotate method is executed, and under the condition that a mobile phone or other mobile devices do not support a horizontal screen, the Canvas can be rotated by 90 degrees or other angles through the rotate function, so that a user can write or draw on the Canvas more comfortably.
In the above embodiment, the drawImage function of the Canvas can also be used to customize the width, height and position of the current Canvas or to implement functions such as cutting and zooming, so as to meet various requirements of the user.
In some embodiments, the first canvas may include an offline template and an online template, wherein, in a case that the first canvas includes the offline template, acquiring the first information content written and/or drawn by the first user account on the first client is realized by the following steps:
step 1, a first client acquires an encrypted non-online template from a server, wherein the non-online template is encrypted according to a preset encryption algorithm and then stored in the server.
And 2, the first client decrypts the encrypted non-online template by using a decryption algorithm corresponding to the encryption algorithm to obtain the non-online template.
And 3, acquiring input information of the first user account on the non-online template, and generating first information content according to the input information.
In this embodiment, in a case that the first canvas includes an online template, acquiring the first information content written and/or drawn by the first user account on the first client is implemented by the following steps:
step 1, the first client acquires an encrypted link address from the server, wherein the link address is encrypted according to a preset encryption algorithm and then stored in the server.
And 2, the first client decrypts the encrypted link address by using a decryption algorithm corresponding to the encryption algorithm to obtain an online template corresponding to the link address.
And 3, acquiring input information of the first user account on the online template, and generating first information content according to the input information.
In this embodiment, the non-online template may include a non-online document, and the first user account may perform writing or other operations on the non-online document, for example, the first user account may perform a signature operation on the non-online document, may use an HTTP (Hyper Text Transfer Protocol, HTTP for short) uploading principle of a browser, and use HTML5 to read a file mechanism and a preset encryption algorithm (for example, a symmetric encryption algorithm), submit a Form to upload the non-online document required by the first user account to a server, and encrypt the non-online template by the preset encryption algorithm to improve privacy and security between user information transmissions.
In the above embodiment, the online template may include an online electronic document, and besides supporting the existing non-online template and online template, the first Canvas may also generate an empty template, that is, directly generate a blank Canvas, so as to meet various needs of the user.
The present embodiment further provides an electronic apparatus, and fig. 3 is a schematic diagram of a hardware structure of the electronic apparatus according to an embodiment of the present application, and as shown in fig. 3, the electronic apparatus includes a memory 404 and a processor 302, where the memory 404 stores a computer program, and the processor 302 is configured to execute the computer program to perform the steps in any of the method embodiments.
Specifically, the processor 302 may include a Central Processing Unit (CPU), or A Specific Integrated Circuit (ASIC), or may be configured to implement one or more Integrated circuits of the embodiments of the present Application.
Memory 404 may include, among other things, mass storage for data or instructions. By way of example, and not limitation, memory 404 may include a Hard Disk Drive (Hard Disk Drive, abbreviated to HDD), a floppy Disk Drive, a Solid State Drive (SSD), flash memory, an optical Disk, a magneto-optical Disk, tape, or a Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 404 may include removable or non-removable (or fixed) media, where appropriate. The memory 404 may be internal or external to the online collaborative information processing system, where appropriate. In a particular embodiment, the memory 404 is a Non-Volatile (Non-Volatile) memory. In particular embodiments, Memory 404 includes Read-Only Memory (ROM) and Random Access Memory (RAM). The ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), Electrically rewritable ROM (EAROM), or FLASH Memory (FLASH), or a combination of two or more of these, where appropriate. The RAM may be a Static Random-Access Memory (SRAM) or a Dynamic Random-Access Memory (DRAM), where the DRAM may be a Fast Page Mode Dynamic Random-Access Memory (FPMDRAM), an Extended data output Dynamic Random-Access Memory (EDODRAM), a Synchronous Dynamic Random-Access Memory (SDRAM), and the like.
Memory 404 may be used to store or cache various data files for processing and/or communication use, as well as possibly computer program instructions for execution by processor 302.
The processor 302 reads and executes the computer program instructions stored in the memory 404 to implement any one of the online collaborative information processing methods in the above-described embodiments.
Optionally, the electronic apparatus may further include a transmission device 306 and an input/output device 308, where the transmission device 306 is connected to the processor 302, and the input/output device 308 is connected to the processor 302.
Alternatively, in this embodiment, the processor 302 may be configured to execute the following steps by a computer program:
and S1, when the first client is logged in by the first user account, the first client acquires the second public key corresponding to the second user account and acquires the first information content formed by writing and/or drawing on the first client by the first user account.
And S2, the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account.
And S3, under the condition that the second user account logs in the second client, the second client acquires a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to acquire the first information content.
It should be noted that, for specific examples in this embodiment, reference may be made to examples described in the foregoing embodiments and optional implementations, and details of this embodiment are not described herein again.
In addition, in combination with the online collaborative information processing method in the foregoing embodiment, the embodiment of the present application may be implemented by providing a storage medium. The storage medium having stored thereon a computer program; the computer program realizes any one of the online collaborative information processing methods in the above embodiments when executed by a processor.
It should be understood by those skilled in the art that various features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
The above examples are merely illustrative of several embodiments of the present application, and the description is more specific and detailed, but not to be construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. An online collaborative information processing method, the method comprising:
under the condition that a first user account logs in a first client, the first client acquires a second public key corresponding to a second user account and acquires first information content formed by writing and/or drawing of the first user account on the first client;
the first client encrypts the first information content by using the second public key to generate first encrypted data, and sends the first encrypted data to the second user account;
and under the condition that the second user account logs in a second client, the second client acquires a second private key corresponding to the second public key, and decrypts the first encrypted data by using the second private key to acquire the first information content.
2. The online collaborative information processing method according to claim 1, wherein the first client includes a first canvas and the second client includes a second canvas; the first information content comprises writing information and/or drawing information of the first user account on the first canvas; the method further comprises the following steps:
displaying the first information content on the second canvas.
3. The online collaborative information processing method according to claim 2, wherein obtaining a first information content that the first user account forms by writing and/or drawing on the first client comprises:
the first client acquires input information of the first user account on the first canvas, wherein the input information comprises coordinate information and brush parameter information;
and according to the coordinate information and the painting brush parameter information, the first client determines a starting path and positions a starting point on the first painting brush, and selects a painting brush matched with the painting brush parameter information to perform path drawing to generate first information content.
4. The online collaborative information processing method of claim 2, wherein the first canvas comprises an offline template; the obtaining of the first information content formed by the first user account writing and/or drawing on the first client comprises:
the first client acquires an encrypted non-online template from a server, wherein the non-online template is encrypted according to a preset encryption algorithm and then stored in the server;
the first client decrypts the encrypted non-online template by using a decryption algorithm corresponding to the encryption algorithm to obtain the non-online template;
and acquiring input information of the first user account on the non-online template, and generating first information content according to the input information.
5. The online collaborative information processing method of claim 2, wherein the first canvas comprises an online template; the obtaining of the first information content formed by the first user account writing and/or drawing on the first client comprises:
the first client acquires an encrypted link address from a server, wherein the link address is encrypted according to a preset encryption algorithm and then stored in the server;
the first client decrypts the encrypted link address by using a decryption algorithm corresponding to the encryption algorithm to obtain an online template corresponding to the link address;
and acquiring input information of the first user account on the online template, and generating first information content according to the input information.
6. The online collaborative information processing method according to claim 1, further comprising:
under the condition that the second user account logs in the second client, the second client acquires a first public key corresponding to the first user account and acquires second information content formed by writing and/or drawing of the second user account on the second client;
the second client encrypts the second information content by using the first public key to generate second encrypted data, and sends the second encrypted data to the first client;
and under the condition that the first user account logs in the first client, the first client acquires a first private key corresponding to the first public key, decrypts the second encrypted data by using the first private key, and acquires the second information content.
7. The online collaborative information processing method according to claim 6, wherein the first client includes a first canvas and the second client includes a second canvas; the second information content comprises writing information and/or drawing information of the second user account on the second canvas; the method further comprises the following steps:
displaying the second information content on the first canvas.
8. An online collaborative information processing system, the system comprising: the system comprises a first client, a second client and a server, wherein the first client, the second client and the server are connected;
the first client is used for acquiring a second public key corresponding to a second user account under the condition that a first user account logs in the first client, and acquiring first information content formed by writing and/or drawing the first user account on the first client; the first client encrypts the first information content by using the second public key to generate first encrypted data, and the first encrypted data is sent to a second client corresponding to the second user account through the server;
the second client is configured to, when the second client logs in to the second user account, obtain a second private key corresponding to the second public key, and decrypt the first encrypted data using the second private key to obtain the first information content.
9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the online collaborative information processing method according to any one of claims 1 to 7.
10. A storage medium having a computer program stored therein, wherein the computer program when executed by a processor implements the online collaborative information processing method according to any one of claims 1 to 7.
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