CN114301933A - Secondary encrypted data secure publishing method and system applied to electronic paper bracelet - Google Patents
Secondary encrypted data secure publishing method and system applied to electronic paper bracelet Download PDFInfo
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- CN114301933A CN114301933A CN202111402170.9A CN202111402170A CN114301933A CN 114301933 A CN114301933 A CN 114301933A CN 202111402170 A CN202111402170 A CN 202111402170A CN 114301933 A CN114301933 A CN 114301933A
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Abstract
The embodiment of the invention discloses a secondary encrypted data security issuing method and system applied to an electronic paper bracelet. In the embodiment of the invention, the hardware encryption/decryption chip is firstly used for encrypting/decrypting the first layer in the process of distributing information to the electronic paper pull ring, then the communication data message is encrypted/decrypted in the second layer in the communication process, and meanwhile, the hardware encryption/decryption chip adopts a national encryption algorithm which meets the national standard.
Description
Technical Field
The invention relates to the technology of Internet of things and communication, in particular to a secondary encrypted data security publishing method and system applied to an electronic paper bracelet.
Background
With the rapid development of emerging technologies, it is difficult for traditional media carriers to meet the visual, fast-paced and interactive demands of users. The appearance and development of electronic paper, the Internet of things and the 5G technology subvert the presentation mode of the traditional media content in the intelligent trip, and the traditional media are endowed with intellectualization and commercialization. According to statistics, the urban rail traffic in China is accumulatively attached to 6178 trains of subway trains by 2019, each train is averagely provided with 300 handles, and the market scale is 200 thousands; the number of the buses in the whole country is 60 thousands by 2020, each bus is equipped with 20 handles on average, and the market size is 1200 thousands. In the face of such a huge handle terminal, the data security problem is more and more prominent in the process of information publishing.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for securely publishing secondary encrypted data applied to an electronic paper bracelet, so as to improve security and reliability of data publishing.
In a first aspect, a method for securely publishing secondary encrypted data applied to an electronic paper bracelet is provided, and the method includes:
the information issuing device acquires at least one image to be issued to the electronic paper bracelet;
the information issuing device conducts first encryption operation on the image to be issued through a hardware encryption chip to obtain first encryption image data, wherein the hardware encryption chip conducts first encryption operation through a state encryption algorithm;
the information issuing device acquires a plurality of communication data messages according to the first encrypted image data;
the information issuing device carries out second encryption operation on each communication data packet to obtain an encrypted communication data message;
and the information issuing device sends the encrypted communication data message to the electronic paper handle ring in a wireless mode.
Further, the method further comprises:
the electronic paper handle ring receives the encrypted communication data message through a wireless channel;
the electronic paper handle ring carries out first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation;
the electronic paper handle ring acquires corresponding first encrypted image data according to the communication data messages;
the electronic paper handle ring carries out second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip carries out the second decryption operation by adopting a decryption algorithm corresponding to the national encryption algorithm;
and the electronic bracelet stores or displays the image to be issued.
Further, the private keys of the hardware encryption chip and the hardware decryption chip are pre-solidified in the chip.
Further, the second encryption operation is performed in a software encryption manner.
Further, the wireless channel is a bluetooth wireless channel, a wireless local area network wireless channel, a 4G mobile communication wireless channel or a 5G mobile communication channel.
Further, the cryptographic algorithm includes at least one of SM1, SM2, SM3, or SM 4.
In a second aspect, a system for securely publishing secondary encrypted data applied to an electronic paper bracelet is provided, the system comprising:
the information issuing device is configured to acquire at least one image to be issued to the electronic paper bracelet; performing a first encryption operation on the image to be issued through a hardware encryption chip to obtain first encrypted image data, wherein the hardware encryption chip performs the first encryption operation by adopting a national encryption algorithm; acquiring a plurality of communication data messages according to the first encrypted image data; carrying out second encryption operation on each communication data packet to obtain an encrypted communication data message; wirelessly sending the encrypted communication data message to an electronic paper catch ring; and
a plurality of electronic paper bracelets configured to receive the encrypted communication data messages over a wireless channel; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and storing or displaying the image to be issued.
In a third aspect, an electronic paper bracelet is provided, comprising:
the handle ring main body is provided with a handle part and a transparent or hollow display window;
the ink screen is arranged at the display window;
a hardware decryption chip;
a wireless communication circuit;
a controller configured to control the wireless communication circuitry to receive an encrypted communication data packet over a wireless channel; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and controlling the ink screen to display the image to be released.
According to the embodiment of the invention, the hardware encryption chip with the national encryption algorithm is adopted to be matched with the software encryption to encrypt the issued data twice after the data is acquired and before the data is sent, and because the private key of the hardware encryption chip cannot be mastered by a manufacturer, the encrypted data cannot be normally displayed if the encrypted data cannot be correctly decrypted, the information issuing through wireless information in public places is safer, and the safety of the information issuing is improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a block diagram of an information distribution system of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an electronic paper handle ring according to an embodiment of the invention;
FIG. 3 is a block circuit diagram of an electronic paper pull ring of an embodiment of the present invention;
fig. 4 is a circuit block diagram of an information distribution apparatus of an embodiment of the present invention;
fig. 5 is a flowchart of an information distribution method according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that there are no intervening elements present.
Fig. 1 is a block diagram of an information distribution system of an embodiment of the present invention. As shown in fig. 1, the information distribution system of the present embodiment includes an information distribution device a and a plurality of electronic paper handle rings B. The two communicate with each other in a wireless manner through a wireless channel. The information distribution device a may obtain the information to be distributed to the electronic bracelet B from an information distribution platform (e.g., a server or a terminal) through a direct connection or a network. In the embodiment, the information issuing device a is configured to acquire at least one image to be issued that needs to be issued to the electronic paper bracelet; performing a first encryption operation on the image to be issued through a hardware encryption chip to obtain first encrypted image data, wherein the hardware encryption chip performs the first encryption operation by adopting a national encryption algorithm; acquiring a plurality of communication data messages according to the first encrypted image data; carrying out second encryption operation on each communication data packet to obtain an encrypted communication data message; sending the encrypted communication data message to an electronic paper catch ring in a wireless manner. Meanwhile, the electronic paper handle ring B is configured to receive the encrypted communication data message through a wireless channel; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and storing or displaying the image to be issued.
The national cryptographic algorithm is a domestic cryptographic algorithm identified by the national cryptographic authority. There are several algorithms, SM1, SM2, SM3, SM4, etc. The key length and the packet length are both 128 bits.
SM1 is symmetric encryption. The encryption strength is comparable to AES. The algorithm is not disclosed, and when the algorithm is called, the algorithm needs to be called through an interface of the encryption chip. By adopting the algorithm, security products such as a series of chips, intelligent IC cards, intelligent password keys, encryption cards, encryption machines and the like are developed and widely applied to various application fields of electronic government affairs, electronic commerce and national economy (including important fields such as national government affairs administration, police administration and the like).
SM2 is asymmetric encryption, based on ECC. The algorithm is disclosed. Since the algorithm is based on ECC, the signature speed and the key generation speed are faster than those of RSA. The security strength of the ECC 256 bits (one of the ECC 256 bits is adopted by the SM 2) is higher than that of the RSA 2048 bits, but the operation speed is faster than that of the RSA.
SM3 message digest algorithm. As can be understood by comparison MD 5. The algorithm is disclosed. The check result is 256 bits.
SM4 packet data algorithm for wireless local area network standard. Symmetric encryption, key length and packet length are 128 bits.
Since the packet size for SM1 and SM4 encryption/decryption is 128 bits, when encrypting/decrypting a message, if the message length is too long, it is necessary to perform the packet, and if the message length is insufficient, it is necessary to perform padding.
Because the hardware encryption/decryption chip adopts the national encryption algorithm, the hardware encryption chip conforms to the national standard, meanwhile, the security of hardware encryption is stronger, the private key in the hardware encryption chip cannot be mastered by a manufacturer, and the later information security risk caused by the leakage of the private key in a manufacturing enterprise is avoided.
Fig. 2 is a schematic structural view of an electronic paper bracelet according to an embodiment of the invention. Fig. 3 is a schematic circuit diagram of an electronic paper handle ring according to an embodiment of the invention. As shown in fig. 2, the electronic paper tab ring of the present embodiment includes a billboard body 1 and an electronic paper assembly 2. The signboard main body 1 has a grip member 11 and a receiving portion 12 suitable for gripping. The electronic paper assembly 2 has an electronic ink screen 21 and a circuit assembly 22 electrically connected to each other (see fig. 3). The electronic paper component is disposed in the housing portion 12.
Fig. 3 is a schematic circuit diagram of an electronic paper assembly of the electronic paper-based smart handhold billboard of this embodiment. As shown in fig. 2, the electronic paper assembly 2 includes an electronic ink screen 21 and a circuit assembly 22. The electronic ink display screen is a screen using electronic ink. Electronic ink screens are also known as electronic paper display technology. Electronic ink is a new method and technology for revolutionizing the display of information. Like most conventional inks, electronic ink and the lines that change its color are printable on many surfaces, from curved plastic, polyester film, paper, to cloth. The difference with conventional paper is that electronic ink changes color when powered on and can display changing images, such as a calculator or cell phone. A plurality of microcapsules with small volume are attached to the surface of the electronic ink screen, black particles with negative electricity and white particles with positive electricity are encapsulated, and the particles with different colors are orderly arranged by changing the charges, so that a clearly black-white visual effect is presented. The electronic ink screen is composed of two substrates, on the electronic ink screen an electronic ink formed from countless small transparent granules is coated, said granules are formed from several black and white granules with positive and negative charges which are sealed in the interior liquid microcapsules, and the charged granules with different colours can be moved towards different directions due to the difference of applied electric field, so that the black or white effect can be displayed on the surface of display screen. Thus, black and white patterns and characters like printed matters can be displayed on the surface of the electronic paper, the electronic paper looks very similar to paper, and the reflection phenomenon of the traditional liquid crystal display is avoided in sunlight. Meanwhile, only when the color of the pixel changes (for example, from black to white), the power is consumed, and the picture on the display screen can be still reserved after the power is turned off, so that the power is saved very much.
With the development of technology, electronic ink display screens can be rendered in color in addition to black and white.
Further, the circuit assembly 22 includes a display driving circuit 22a, a wireless communication circuit 22b, a hardware decryption chip 22c, and a controller 22 d. The display driving circuit 22a is electrically connected to the electronic ink screen 21, and is configured to drive the electronic ink screen to perform displaying and refreshing. The wireless communication circuit 22b is used for wirelessly receiving the advertisement content to be displayed and sending the advertisement content to the display driving circuit. Specifically, the wireless communication circuit 22b includes at least one of a bluetooth circuit, a local area network circuit, and a wide area internet of things circuit. The hardware decryption chip 22c is an integrated circuit having a decryption operation performed in hardware using a cryptographic algorithm. Which may accept requests and data from the controller 22d and decrypt it according to a predetermined algorithm based on a preconfigured stored private key. The display drive circuit 22a, the wireless communication circuit 22b, and the hardware decryption chip 22c are electrically connected to the controller 22 d. The controller 22d may be a programmable device, such as a single chip, a CPLD, or an FPGA, or an application specific integrated circuit, and controls the display driving circuit and the wireless communication circuit to operate according to preset logic. In an alternative embodiment, the controller 22d includes a processor and a memory, the memory storing a program that the processor can read and execute to implement predetermined logic.
In this embodiment, the controller 22c is configured to receive the encrypted communication data packet over a wireless channel by the wireless communication circuit; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and controlling the ink screen to display the image to be released.
Fig. 4 is a circuit block diagram of an information distribution apparatus of an embodiment of the present invention. As shown in fig. 4, the information distribution apparatus of the embodiment of the present invention includes a wireless communication circuit 41, a hardware cryptographic chip 42, and a controller 43. Wherein the wireless communication circuit 41 is used for communicating with the electronic paper handle ring in a wireless manner. The hardware encryption chip 42 is configured to encrypt the image to be issued by using a cryptographic algorithm in a hardware manner to obtain first encrypted image data. The controller 42 further forms a plurality of communication data packets from the first encrypted image data and performs a second encryption operation on the communication data packets. The second encryption operation may be performed in software. The encryption algorithm may be selected from a symmetric encryption algorithm or an asymmetric encryption algorithm.
Fig. 5 is a flowchart of an information distribution method according to an embodiment of the present invention. The method can be executed by an information issuing device and an electronic bracelet in an information issuing system. As shown in fig. 5, the method includes:
step S100, the information issuing device acquires at least one image to be issued which needs to be issued to the electronic paper bracelet.
Specifically, the information distribution device may acquire the image to be distributed through a network or read the image to be distributed through a storage device directly connected thereto.
Step S200, the information issuing device conducts first encryption operation on the image to be issued through a hardware encryption chip to obtain first encryption image data, wherein the hardware encryption chip conducts the first encryption operation through a national encryption algorithm.
Step S300, the information issuing device obtains a plurality of communication data messages according to the first encrypted image data.
Specifically, the first encrypted image data may be split and packaged into data packets according to a communication protocol by the wireless communication circuit.
Step S400, the information distribution device performs a second encryption operation on each communication data packet to obtain an encrypted communication data packet.
And step S500, the information issuing device sends the encrypted communication data message to the electronic paper handle ring in a wireless mode.
And S600, receiving the encrypted communication data message by the electronic paper handle ring through a wireless channel.
The wireless channel is a Bluetooth wireless channel, a wireless local area network wireless channel, a 4G mobile communication wireless channel or a 5G mobile communication channel.
Step S700, the electronic paper handle ring conducts first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation.
And S800, the electronic paper handle ring acquires corresponding first encrypted image data according to the communication data messages.
And S900, the electronic paper handle ring performs a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the national encryption algorithm.
And S1000, storing or displaying the image to be issued by the electronic bracelet.
And the private keys of the hardware encryption chip and the hardware decryption chip are pre-solidified in the chips.
Optionally, the second encryption operation is performed in a software encryption manner.
In the embodiment of the invention, the hardware encryption/decryption chip is firstly used for encrypting/decrypting the first layer in the process of distributing information to the electronic paper pull ring, then the communication data message is encrypted/decrypted in the second layer in the communication process, and meanwhile, the hardware encryption/decryption chip adopts a national encryption algorithm which meets the national standard.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A secondary encrypted data secure publishing method applied to an electronic paper bracelet is characterized by comprising the following steps:
the information issuing device acquires at least one image to be issued to the electronic paper bracelet;
the information issuing device conducts first encryption operation on the image to be issued through a hardware encryption chip to obtain first encryption image data, wherein the hardware encryption chip conducts first encryption operation through a state encryption algorithm;
the information issuing device acquires a plurality of communication data messages according to the first encrypted image data;
the information issuing device carries out second encryption operation on each communication data packet to obtain an encrypted communication data message;
and the information issuing device sends the encrypted communication data message to the electronic paper handle ring in a wireless mode.
2. The method of claim 1, further comprising:
the electronic paper handle ring receives the encrypted communication data message through a wireless channel;
the electronic paper handle ring carries out first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation;
the electronic paper handle ring acquires corresponding first encrypted image data according to the communication data messages;
the electronic paper handle ring carries out second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip carries out the second decryption operation by adopting a decryption algorithm corresponding to the national encryption algorithm;
and the electronic bracelet stores or displays the image to be issued.
3. The method of claim 2, wherein the private keys of the hardware encryption chip and the hardware decryption chip are pre-fixed in the chips.
4. The method of claim 2, wherein the second encryption operation is performed using software encryption.
5. The method of claim 1, wherein the wireless channel is a bluetooth wireless channel, a wireless local area network wireless channel, a 4G mobile communication wireless channel, or a 5G mobile communication channel.
6. The method of claim 1, wherein the cryptographic algorithm comprises at least one of SM1, SM2, SM3, or SM 4.
7. The utility model provides a be applied to secondary encryption data security issue system of electronic paper bracelet, its characterized in that includes:
the information issuing device is configured to acquire at least one image to be issued to the electronic paper bracelet; performing a first encryption operation on the image to be issued through a hardware encryption chip to obtain first encrypted image data, wherein the hardware encryption chip performs the first encryption operation by adopting a national encryption algorithm; acquiring a plurality of communication data messages according to the first encrypted image data; carrying out second encryption operation on each communication data packet to obtain an encrypted communication data message; wirelessly sending the encrypted communication data message to an electronic paper catch ring; and
a plurality of electronic paper bracelets configured to receive the encrypted communication data messages over a wireless channel; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and storing or displaying the image to be issued.
8. An electronic paper pull ring, comprising:
the handle ring main body is provided with a handle part and a transparent or hollow display window;
the ink screen is arranged at the display window;
a hardware decryption chip;
a wireless communication circuit;
a controller configured to control the wireless communication circuitry to receive an encrypted communication data packet over a wireless channel; performing a first decryption operation on each encrypted communication data message to obtain a plurality of communication data messages, wherein the first decryption operation corresponds to the second encryption operation; acquiring corresponding first encrypted image data according to the communication data messages; performing a second decryption operation on the first encrypted image data through a hardware decryption chip to obtain an image to be issued, wherein the hardware decryption chip performs the second decryption operation by adopting a decryption algorithm corresponding to the cryptographic algorithm; and controlling the ink screen to display the image to be released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111402170.9A CN114301933A (en) | 2021-11-19 | 2021-11-19 | Secondary encrypted data secure publishing method and system applied to electronic paper bracelet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111402170.9A CN114301933A (en) | 2021-11-19 | 2021-11-19 | Secondary encrypted data secure publishing method and system applied to electronic paper bracelet |
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| CN114301933A true CN114301933A (en) | 2022-04-08 |
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| CN202111402170.9A Pending CN114301933A (en) | 2021-11-19 | 2021-11-19 | Secondary encrypted data secure publishing method and system applied to electronic paper bracelet |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411619A (en) * | 2016-12-02 | 2017-02-15 | 北京博大光通物联科技股份有限公司 | Wireless equipment upgrading method based on low-power-consumption wide area network |
| CN106658061A (en) * | 2016-12-06 | 2017-05-10 | 讯美科技股份有限公司 | Video data security encryption transmission method and system |
| US20180367540A1 (en) * | 2016-10-21 | 2018-12-20 | Wickr Inc. | Controlling access to content |
| CN110572454A (en) * | 2019-09-11 | 2019-12-13 | 深圳钱客多信息科技有限公司 | Advertisement delivery system for guaranteeing safety of advertisement delivery process |
| CN110621014A (en) * | 2019-09-18 | 2019-12-27 | 深圳市元征科技股份有限公司 | Vehicle-mounted equipment, program upgrading method thereof and server |
| US20200160388A1 (en) * | 2018-11-15 | 2020-05-21 | Ravel Technologies SARL | Cryptographic anonymization for zero-knowledge advertising methods, apparatus, and system |
| CN112367633A (en) * | 2020-10-29 | 2021-02-12 | 北京勇芯科技有限公司 | Public transport handle advertisement communication system based on bluetooth |
| CN112650463A (en) * | 2020-12-31 | 2021-04-13 | 安徽博大光通物联科技有限公司 | Ink screen remote information screen projection method, device and system based on wireless mode |
-
2021
- 2021-11-19 CN CN202111402170.9A patent/CN114301933A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180367540A1 (en) * | 2016-10-21 | 2018-12-20 | Wickr Inc. | Controlling access to content |
| CN106411619A (en) * | 2016-12-02 | 2017-02-15 | 北京博大光通物联科技股份有限公司 | Wireless equipment upgrading method based on low-power-consumption wide area network |
| CN106658061A (en) * | 2016-12-06 | 2017-05-10 | 讯美科技股份有限公司 | Video data security encryption transmission method and system |
| US20200160388A1 (en) * | 2018-11-15 | 2020-05-21 | Ravel Technologies SARL | Cryptographic anonymization for zero-knowledge advertising methods, apparatus, and system |
| CN110572454A (en) * | 2019-09-11 | 2019-12-13 | 深圳钱客多信息科技有限公司 | Advertisement delivery system for guaranteeing safety of advertisement delivery process |
| CN110621014A (en) * | 2019-09-18 | 2019-12-27 | 深圳市元征科技股份有限公司 | Vehicle-mounted equipment, program upgrading method thereof and server |
| CN112367633A (en) * | 2020-10-29 | 2021-02-12 | 北京勇芯科技有限公司 | Public transport handle advertisement communication system based on bluetooth |
| CN112650463A (en) * | 2020-12-31 | 2021-04-13 | 安徽博大光通物联科技有限公司 | Ink screen remote information screen projection method, device and system based on wireless mode |
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