CN118514447A - Encrypted printing method and system for printing device - Google Patents

Abstract

The invention discloses an encryption jet printing method and system of a jet printing device, wherein the method comprises the following steps: obtaining encryption information corresponding to the second encryption component, wherein the encryption information comprises a first public key, a signature original text and a first signature; verifying the first signature according to the second public key stored by the first encryption component so as to judge whether a signature original corresponding to the first signature is consistent with the signature original in the encryption information; if the random numbers are consistent, the first encryption component is adopted to generate the random numbers, and the random numbers are sent to the ink box, so that the ink box signs the random numbers to obtain second signatures; verifying the second signature by adopting the first public key to judge whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; if the ink parameters are consistent, acquiring the ink parameters so as to drive the ink box to jet printing according to the ink parameters; therefore, the printing parameters are updated through encryption verification, and the problem of channeling of the ink box is avoided, so that the optimal jet printing effect is achieved.

Description

Encrypted printing method and system for printing device

Technical Field

The present invention relates to the technical field of inkjet printing, and in particular to an encrypted printing method for a printing device, a computer-readable storage medium, a computer device, and an encrypted printing system for a printing device.

Background Art

In the related art, inkjet printing is to convert ink into ink droplets through the nozzle of the print head and spray them onto the printing medium; the ink used for printing is stored in the ink cartridge, and since the ink is continuously consumed during the printing process, the ink cartridge is an important consumable of the inkjet printing equipment; since the printing equipment needs to frequently replace the ink cartridge, and the number of ink cartridges storing ink on the market is large, and there are many manufacturers and models; in order to distinguish the model, brand and quality of the ink in the ink cartridge, it is generally manually identified through labels, and the printing parameters of the ink are saved in the printing equipment. However, this method cannot update the printing parameters in time when the ink cartridge is replaced, and the ink cartridges of dealers in different regions often have the problem of cross-selling, resulting in the mixing of inks of different brands, thus affecting the printing effect.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one object of the present invention is to provide an encrypted printing method of a printing device, which updates printing parameters through encrypted verification and avoids the problem of cross-selling of ink cartridges, thereby achieving the best printing effect.

A second object of the present invention is to provide a computer-readable storage medium.

A third object of the present invention is to provide a computer device.

A fourth objective of the present invention is to provide an encrypted printing system for a printing device.

To achieve the above-mentioned purpose, an embodiment of a first aspect of the present invention proposes an encrypted printing method for a printing device, wherein the printing device includes a printing device and an ink cartridge, the printing device is provided with a first encryption component, and the ink cartridge is provided with a second encryption component, and the encrypted printing method includes the following steps: obtaining encrypted information corresponding to the second encryption component, wherein the encrypted information includes a first public key, a signature original and a first signature; verifying the first signature according to the second public key stored in the first encryption component to determine whether the signature original corresponding to the first signature is consistent with the signature original in the encrypted information; if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, using the first encryption component to generate a random number, and sending the random number to the ink cartridge so that the ink cartridge signs the random number to obtain a second signature; obtaining the second signature, and verifying the second signature using the first public key to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, obtaining the ink parameters stored in the second encryption component so as to drive the ink cartridge to print according to the ink parameters.

According to the encrypted printing method of the printing device of the embodiment of the present invention, first, the encrypted information corresponding to the second encryption component is obtained, wherein the encrypted information includes the first public key, the signature original and the first signature; then, the first signature is verified according to the second public key stored in the first encryption component to determine whether the signature original corresponding to the first signature is consistent with the signature original in the encrypted information; if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, the first encryption component is used to generate a random number, and the random number is sent to the ink cartridge so that the ink cartridge signs the random number to obtain a second signature; then, the second signature is obtained, and the first public key is used to verify the second signature to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, the ink parameters stored in the second encryption component are obtained so as to drive the ink cartridge to print according to the ink parameters; thereby, the printing parameters are updated through encryption verification, and the problem of ink cartridge cross-selling is avoided, thereby achieving the best printing effect.

In addition, the encrypted printing method of the printing device proposed in the above embodiment of the present invention may also have the following additional technical features:

Optionally, obtaining the encryption information corresponding to the second encryption component includes: the printing device obtains a certificate of the second encryption component set on the ink cartridge, and parses the certificate to obtain the corresponding encryption information in the certificate.

Optionally, the second public key is the public key of the dealer. If the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, it is determined that the ink cartridge belongs to the dealer; if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, the process is terminated.

Optionally, if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, it is determined that the printing device and the ink cartridge are matched successfully; if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, the process is terminated.

To achieve the above objectives, the second aspect of the present invention proposes a computer-readable storage medium on which an encrypted printing program for a printing device is stored. When the encrypted printing program for the printing device is executed by a processor, the encrypted printing method for the printing device as described above is implemented.

According to the computer-readable storage medium of an embodiment of the present invention, an encrypted printing program of the printing device is stored so that the processor implements the encrypted printing method of the printing device as described above when executing the encrypted printing program of the printing device. Thus, the printing parameters are updated through encryption verification, and the problem of ink cartridge cross-selling is avoided, thereby achieving the best printing effect.

To achieve the above-mentioned purpose, the third aspect of the present invention proposes a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the encrypted printing method of the printing device as described above is implemented.

According to the computer device of an embodiment of the present invention, a computer program that can be run on a processor is stored in a memory, so that when the processor executes the computer program, an encrypted printing method of the printing device as described above is implemented. Thus, the printing parameters are updated through encryption verification, and the problem of ink cartridges being mislabeled is avoided, thereby achieving the best printing effect.

To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes an encrypted printing system for a printing device, including a printing device and an ink cartridge, wherein the printing device is provided with a first encryption component, and the ink cartridge is provided with a second encryption component, and the printing device comprises: an acquisition module, used to obtain encrypted information corresponding to the second encryption component, wherein the encrypted information includes a first public key, a signature original and a first signature; a first verification module, used to verify the first signature according to the second public key stored in the first encryption component to determine whether the signature original corresponding to the first signature is consistent with the signature original in the encrypted information; a generation module, used to generate a signature if the signature corresponding to the first signature is consistent with the signature original in the encrypted information. If the original public key is consistent with the original signature in the encrypted information, the first encryption component is used to generate a random number, and the random number is sent to the ink cartridge so that the ink cartridge signs the random number to obtain a second signature; a second verification module is used to obtain the second signature and verify the second signature using the first public key to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; a printing control module is used to obtain the ink parameters stored in the second encryption component if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, so as to drive the ink cartridge to print according to the ink parameters.

In addition, the encrypted printing system of the printing device proposed in the above embodiment of the present invention may also have the following additional technical features:

Optionally, the acquisition module is further used to acquire a certificate of a second encryption component provided on the ink cartridge, and parse the certificate to obtain corresponding encryption information in the certificate.

Optionally, the second public key is the public key of the dealer. If the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, it is determined that the ink cartridge belongs to the dealer; if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, the process is terminated.

Optionally, if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, it is determined that the printing device and the ink cartridge are matched successfully; if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, the process is terminated.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic flow chart of an encrypted printing method of a printing device according to an embodiment of the present invention;

FIG2 is a schematic flow chart of an encrypted printing method of a printing device according to an embodiment of the present invention;

FIG3 is a block diagram of an encrypted printing system of a printing device according to an embodiment of the present invention.

DETAILED DESCRIPTION

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

An embodiment of the present invention provides an encrypted printing method for a printing device, which is applied to the printing device, wherein the printing device includes a printing device and an ink cartridge, wherein the printing device is an inkjet printer, and the inkjet printer is provided with a first encryption component, and the ink cartridge is provided with a second encryption component, so that encrypted printing is performed through the first encryption component and the second encryption component. As shown in FIG1 , the method includes the following steps:

S101, obtaining encryption information corresponding to a second encryption component, wherein the encryption information includes a first public key, a signature original, and a first signature.

It should be noted that the first encryption component includes a first encryption chip, the second encryption component includes a second encryption chip, and both the first encryption chip and the second encryption chip are encryption chips with an I2C interface.

As an embodiment, obtaining encryption information corresponding to the second encryption component includes: the printing device obtains the certificate of the second encryption component set on the ink cartridge, and parses the certificate to obtain the corresponding encryption information in the certificate.

That is, the printing device obtains the certificate of the second encryption chip on the ink cartridge and parses the certificate to obtain the first public key, the original signature and the first signature in the certificate.

S102: Verify the first signature according to the second public key stored in the first encryption component to determine whether the original signature corresponding to the first signature is consistent with the original signature in the encrypted information.

S103, if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, a first encryption component is used to generate a random number, and the random number is sent to the ink cartridge so that the ink cartridge signs the random number to obtain a second signature.

It should be noted that the second public key is the public key of the dealer. If the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, it is determined that the ink cartridge belongs to the dealer; if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, the process is terminated.

That is to say, the dealer's second public key is stored in the encryption chip of the inkjet printer. The inkjet printer uses the second public key to parse the first signature to obtain the corresponding signature original, and compares it with the signature original obtained in the certificate. If the two signature files are consistent, it means that the signature verification is successful, that is, the ink cartridge belongs to the dealer, and then continue to the next step of the process, use the first encryption component to generate a random number, and send the random number to the ink cartridge so that the ink cartridge signs the random number to obtain the second signature; if the two signature files are inconsistent, it means that the signature verification fails, that is, the ink cartridge does not belong to the dealer, then the printing work will not continue, and the process will be terminated.

S104, obtaining a second signature, and using the first public key to verify the second signature to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component.

S105: If the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, the ink parameters stored in the second encryption component are obtained so as to drive the ink cartridge to print according to the ink parameters.

It should be noted that if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, it is determined that the printing device and the ink cartridge are matched successfully; if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, the process is terminated.

That is to say, the random number is a number randomly generated by the register in the first encryption component on the inkjet printer, and it has no meaning like the original signature mentioned above. After the ink cartridge signs the random number, if the random number obtained after parsing the signature using the first public key is consistent with the random number originally generated and stored by the inkjet printer, it means that the signature verification is successful, and the next step of the process will be continued; if the two random numbers are inconsistent, it means that the signature verification has failed, that is, the pairing of the inkjet printer and the ink cartridge is unsuccessful, and the printing work will not continue, and the process will be terminated.

In addition, during the printing process, the ink cartridge updates the corresponding ink parameters in real time, wherein the ink parameters include ink model, ink capacity and printing parameters, wherein the printing parameters include printing voltage, printing pulse width and printing time, etc.

As a specific embodiment, as shown in Figure 2, first, the inkjet printer obtains the certificate of the ink cartridge encryption IC; and parses the certificate returned by the ink cartridge to obtain the public key, the original signature, and the signature in the ink cartridge certificate; then, the inkjet printer uses the dealer's public key to verify the signature of the certificate, and executes the next step if the verification is successful, otherwise the process is terminated; then, the inkjet printer generates a random number and sends the random number to the ink cartridge so that the ink cartridge signs the random number and sends the signature to the inkjet printer; then, the inkjet printer uses the dealer's public key to verify the signature, and executes the next step if the verification is successful, otherwise the process is terminated; finally, the inkjet printer obtains the ink parameters of the ink cartridge so that the inkjet printer uses the ink parameters of the ink cartridge to drive the ink cartridge to print.

In summary, according to the encrypted printing method of the printing device of the embodiment of the present invention, first, the encrypted information corresponding to the second encryption component is obtained, wherein the encrypted information includes the first public key, the signature original and the first signature; then, the first signature is verified according to the second public key stored in the first encryption component to determine whether the signature original corresponding to the first signature is consistent with the signature original in the encrypted information; if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, the first encryption component is used to generate a random number, and the random number is sent to the ink cartridge so that the ink cartridge signs the random number to obtain a second signature; then, the second signature is obtained, and the first public key is used to verify the second signature to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, the ink parameters stored in the second encryption component are obtained so as to drive the ink cartridge to print according to the ink parameters; thereby, the printing parameters are updated through encryption verification, and the problem of ink cartridge cross-selling is avoided, thereby achieving the best printing effect.

In addition, an embodiment of the present invention further proposes a computer-readable storage medium on which an encrypted printing program of a printing device is stored. When the encrypted printing program of the printing device is executed by a processor, the encrypted printing method of the printing device as described above is implemented.

According to the computer-readable storage medium of an embodiment of the present invention, an encrypted printing program of the printing device is stored so that the processor implements the encrypted printing method of the printing device as described above when executing the encrypted printing program of the printing device. Thus, the printing parameters are updated through encryption verification, and the problem of ink cartridge cross-selling is avoided, thereby achieving the best printing effect.

In addition, the third aspect of the present invention proposes a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the encrypted printing method of the printing device as described above is implemented.

According to the computer device of an embodiment of the present invention, a computer program that can be run on a processor is stored in a memory, so that when the processor executes the computer program, an encrypted printing method of the printing device as described above is implemented. Thus, the printing parameters are updated through encryption verification, and the problem of ink cartridges being mislabeled is avoided, thereby achieving the best printing effect.

In addition, in order to implement the above embodiment, the embodiment of the present application also proposes an encrypted printing system of a printing device, as shown in Figure 3, including: an acquisition module 10, a first verification module 20, a generation module 30, a second verification module 40 and a printing control module 50.

Among them, the acquisition module 10 is used to obtain the encrypted information corresponding to the second encryption component, wherein the encrypted information includes the first public key, the signature original and the first signature; the first verification module 20 is used to verify the first signature according to the second public key stored in the first encryption component to determine whether the signature original corresponding to the first signature is consistent with the signature original in the encrypted information; the generation module 30 is used to use the first encryption component to generate a random number if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, and send the random number to the ink cartridge so that the ink cartridge signs the random number to obtain the second signature; the second verification module 40 is used to obtain the second signature, and verify the second signature using the first public key to determine whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component; the printing control module 50 is used to obtain the ink parameters stored in the second encryption component if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, so as to drive the ink cartridge to print according to the ink parameters.

Optionally, the acquisition module 10 is further used to acquire a certificate of a second encryption component provided on the ink cartridge, and parse the certificate to obtain corresponding encryption information in the certificate.

Optionally, the second public key is the public key of the dealer. If the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, it is determined that the ink cartridge belongs to the dealer; if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, the process is terminated.

Optionally, if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, it is determined that the printing device and the ink cartridge are matched successfully; if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, the process is terminated.

It should be noted that the aforementioned explanation of the embodiment of the encrypted printing method of the printing device is also applicable to the encrypted printing system of the printing device of this embodiment, and will not be repeated here.

In summary, the encrypted printing system of the printing device according to the embodiment of the present invention implements encrypted verification through the above modules to update printing parameters and avoid the problem of ink cartridges being sold in parallel, thereby achieving the best printing effect.

Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

The present invention is described with reference to the flowchart and/or block diagram of the method, device (system), and computer program product according to the embodiment of the present invention. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

It should be noted that in the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims (10)

1. The encryption jet printing method of the jet printing device is characterized in that the jet printing device comprises jet printing equipment and an ink box, a first encryption component is arranged on the jet printing equipment, a second encryption component is arranged on the ink box, and the encryption jet printing method comprises the following steps:

Obtaining encryption information corresponding to the second encryption component, wherein the encryption information comprises a first public key, a signature original text and a first signature;

Verifying the first signature according to a second public key stored by the first encryption component so as to judge whether a signature original corresponding to the first signature is consistent with the signature original in the encryption information;

if the signature original corresponding to the first signature is consistent with the signature original in the encrypted information, generating a random number by adopting the first encryption component, and sending the random number to the ink box so that the ink box signs the random number to obtain a second signature;

acquiring the second signature, and verifying the second signature by adopting the first public key to judge whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component;

And if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, acquiring the ink parameter stored by the second encryption component so as to drive the ink box to carry out jet printing according to the ink parameter.

2. The method for encrypting a jet printing device according to claim 1, wherein obtaining the encrypted information corresponding to the second encryption component comprises: the jet printing equipment acquires the certificate of the second encryption component arranged on the ink box and analyzes the certificate to obtain corresponding encryption information in the certificate.

3. The encryption jet printing method of the jet printing apparatus according to claim 1, wherein the second public key is a public key of a distributor, and if a signature original corresponding to the first signature is identical to a signature original in the encryption information, the ink cartridge is judged to belong to the distributor; and if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, terminating the flow.

4. The method of encrypting a jet printing apparatus according to claim 1, wherein if the random number corresponding to the second signature is identical to the random number generated by the first encrypting means, it is judged that the matching of the jet printing device and the ink cartridge is successful; and if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, terminating the flow.

5. A computer-readable storage medium, on which an encrypted jet printing program of a jet printing apparatus is stored, which when executed by a processor implements the encrypted jet printing method of the jet printing apparatus according to any one of claims 1 to 4.

6. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the program, implements an encrypted jet printing method of a jet printing apparatus according to any one of claims 1 to 4.

7. The utility model provides an encrypt jet printing system of jet printing device, its characterized in that includes jet printing equipment and ink horn, wherein, be provided with first encryption subassembly on the jet printing equipment, be provided with the second encryption subassembly on the ink horn, jet printing equipment includes:

The acquisition module is used for acquiring the encryption information corresponding to the second encryption component, wherein the encryption information comprises a first public key, a signature original text and a first signature;

The first verification module is used for verifying the first signature according to the second public key stored by the first encryption component so as to judge whether a signature original corresponding to the first signature is consistent with the signature original in the encryption information;

The generation module is used for generating a random number by adopting the first encryption component and sending the random number to the ink box if the signature original corresponding to the first signature is consistent with the signature original in the encryption information, so that the ink box signs the random number to obtain a second signature;

The second verification module is used for acquiring the second signature and verifying the second signature by adopting the first public key so as to judge whether the random number corresponding to the second signature is consistent with the random number generated by the first encryption component;

And the jet printing control module is used for acquiring the ink parameters stored by the second encryption component if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, so as to drive the ink box to carry out jet printing according to the ink parameters.

8. The system of claim 7, wherein the obtaining module is further configured to obtain a certificate of the second encryption component disposed on the ink cartridge, and parse the certificate to obtain the corresponding encrypted information in the certificate.

9. The encrypted jet printing system of the jet printing apparatus according to claim 7, wherein the second public key is a public key of a distributor, and if a signature original corresponding to the first signature is identical to a signature original in the encrypted information, the ink cartridge is judged to belong to the distributor; and if the signature original corresponding to the first signature is inconsistent with the signature original in the encrypted information, terminating the flow.

10. The encrypted jet printing system of the jet printing device according to claim 7, wherein if the random number corresponding to the second signature is consistent with the random number generated by the first encryption component, the matching of the jet printing equipment and the ink box is judged to be successful; and if the random number corresponding to the second signature is inconsistent with the random number generated by the first encryption component, terminating the flow.