CN113037466B - Factory mode encryption processing method and system based on television, television and medium - Google Patents

Factory mode encryption processing method and system based on television, television and medium Download PDF

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Publication number
CN113037466B
CN113037466B CN202110320693.2A CN202110320693A CN113037466B CN 113037466 B CN113037466 B CN 113037466B CN 202110320693 A CN202110320693 A CN 202110320693A CN 113037466 B CN113037466 B CN 113037466B
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television
factory mode
password
factory
entering
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CN113037466A (en
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尚琳佳
涂志雄
张洋
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Shenzhen Skyworth RGB Electronics Co Ltd
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Shenzhen Skyworth RGB Electronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8549—Creating video summaries, e.g. movie trailer

Abstract

The invention discloses a factory mode encryption processing method and system based on a television, a television and a medium, wherein the method comprises the following steps: the television acquires an ID number and a random number generated randomly of a local television; combining the ID number of the television with the randomly generated random number into content to be calculated, sending the content to a server, and combining the ID number of the television with the randomly generated random number according to a preset specified encryption algorithm to calculate a first password required for entering a factory mode; the television receiving server calculates a second password required for entering a factory mode according to the ID number of the television and the random number combination generated randomly according to a preset specified encryption algorithm; and comparing and judging the second password with the first password generated by the local computer, and controlling to enter a factory mode when the second password is consistent with the first password. The invention has good confidentiality, simple operation when entering the factory mode again, convenient after-sale maintenance, effectively improved after-sale efficiency and reduced after-sale cost.

Description

Factory mode encryption processing method and system based on television, television and medium
Technical Field
The invention relates to the technical field of intelligent televisions, in particular to a factory mode encryption processing method and system based on a television, a television and a storage medium.
Background
With the development of science and technology and the continuous improvement of the living standard of people, the use of various intelligent terminals such as an intelligent television is more and more popularized, and the intelligent television becomes an indispensable communication tool in the life of people.
The television software has two modes, one is a user mode, the other is a factory mode, the factory mode has related data required by factory production and related parameters required by designers for debugging the television, such as factory frequency points, audio curves, image quality parameters, screen parameter data, television software version, television internal models, screen models, factory burnt KEY code data and the like, the information can be checked in a factory menu, the related parameters in the factory mode are very important, if some parameters are modified by a terminal client, the function of the television can be abnormal, and many important debugging parameters also need to be kept secret for other competitors, so the confidentiality of the factory mode of the television software becomes very important.
The television is switched from a factory mode to a user mode at the last detection station of the television production in a factory, all detection and browsing traces are eliminated, and the condition that a terminal client starts the television after taking the television is ensured that no detection or use trace exists in the client mode at the same time; there are two existing methods for switching from factory mode to user mode,
the method comprises the following steps: after receiving a switching instruction (a remote controller or a serial port instruction), the television software removes detection traces and use traces, simultaneously closes the factory mode and enters a user mode, and the factory mode closed by the method can be opened again by using a remote controller combination key;
the second method comprises the following steps: after receiving a switching instruction (a remote controller or a serial port instruction), the television software removes detection traces and use traces, simultaneously deletes all relevant data and factory menus required in factory production, and enters a user mode;
after the television is switched to the user mode, the factory mode can be opened by using methods such as a combination key and the like, the opening methods of the televisions of the same brand are basically consistent, and the opening method is too simple and easy to spread; the method that a plurality of manufacturers using the method enter the factory mode can be searched in a search engine, the confidentiality is too poor, and the original purpose of confidentiality of the factory mode is not achieved; the factory mode is deleted while the second use method is switched to the user mode, and a method for entering the factory mode again is not used (unless a specified computer is used for upgrading the television to software with the factory mode again through a serial port), the second use method has very good confidentiality, and relevant data of the factory mode cannot be obtained after the second use method leaves a factory; however, since the method cannot enter the factory mode again, it is very inconvenient when the television produced in the factory needs to be reworked or after-sales personnel need to obtain related factory data, especially for the factory rework, the factory staff can only use the computer to upgrade the television one by one through the serial port, which seriously affects the rework efficiency and generates expensive rework cost.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a factory mode encryption processing method, system, television and storage medium based on television, aiming at the above defects of the prior art, the present invention provides a new factory mode encryption method, aiming at the defects of the prior television software factory mode encryption method, the present invention has good confidentiality, simple operation when reentering the factory mode, convenient after-sale maintenance, and can effectively improve the after-sale efficiency and reduce the after-sale cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a factory mode encryption processing method based on a television comprises the following steps:
when receiving an instruction of entering a factory mode, the television acquires an ID number of the television and a random number generated randomly;
the television combines the ID number of the television with the randomly generated random number into content to be calculated and sends the content to the server, and the ID number of the television and the randomly generated random number are combined to calculate a first password required for entering a factory mode according to a preset specified encryption algorithm;
the television receives a second password which is calculated by the server according to the ID number of the television and the random number combination generated randomly according to a preset appointed encryption algorithm and is required for entering the factory mode;
the television compares the received second password sent by the server with the first password generated by the television, and when the second password is consistent with the first password, the television is controlled to enter a factory mode.
The factory mode encryption processing method based on the television is characterized in that the television compares and judges a received second password sent by the server with a first password generated by the television, and when the second password is consistent with the first password, the step of controlling to enter the factory mode further comprises the following steps:
after entering the factory mode, the television needs to re-enter the factory mode through the password decryption operation required by entering the factory mode, which is calculated by combining the ID number of the television and the random number generated at random according to a preset specified encryption algorithm after being powered off and restarted.
The factory mode encryption processing method based on the television is characterized in that when receiving a factory mode entering command, the step that the television acquires the ID number of the television and the random number generated at random comprises the following steps:
factory mode data is not deleted but encrypted when the television is set to factory reset in advance, when the television after factory reset needs to enter the factory mode again, a password needs to be input for decryption to enter the factory mode, and the input password is calculated through a specified encryption algorithm according to the combination of the ID number of the television and two randomly generated numbers.
The factory mode encryption processing method based on the television comprises the following steps that when an instruction of entering the factory mode is received, the television acquires the ID number of the television and the random number generated randomly, wherein the steps comprise:
presetting a designated encryption algorithm for generating a factory mode entering password through encryption calculation according to an ID number of the television and a random number combination generated randomly on the television;
and setting a specified encryption algorithm for generating a factory mode entering password through encryption calculation according to the ID number of the television and a random number combination generated randomly at the server in advance.
The factory mode encryption processing method based on the television, wherein when receiving a factory mode entering command, the step that the television acquires the ID number of the television and the random number generated randomly comprises the following steps:
when the television receives a designated remote key value for entering the factory mode, a process of automatically entering the factory mode is started, and the television acquires the ID number of the television and a random number generated randomly.
The factory mode encryption processing method based on the television comprises the following steps that the television combines the ID number of the television and the randomly generated random number into content needing to be calculated and sends the content to the server, and the ID number of the television and the randomly generated random number are combined according to a preset specified encryption algorithm to calculate a first password required by entering a factory mode, and the method comprises the following steps:
when the television needs to enter a factory mode, the television combines the ID number of the television and two random numbers generated randomly into a content needing to be calculated and sends the content to the server through the network;
and meanwhile, combining the ID number of the television with a random number generated randomly, carrying out encryption calculation according to a preset MD5 information digest algorithm, and generating a first password required for entering a factory mode.
The factory mode encryption processing method based on the television is characterized in that the step of calculating a second password required for entering the factory mode by the television receiving server according to the ID number of the television and the randomly generated random number combination and a preset appointed encryption algorithm comprises the following steps:
the server receives the content which is combined by the ID number of the television and the random number generated randomly and needs to be calculated, and calculates a second password needed for entering a factory mode according to a preset encryption algorithm;
and the television receiving server calculates a second password required by entering the factory mode according to the preset specified encryption algorithm by combining the ID number of the television with the random number generated randomly.
A factory mode encryption processing system based on a television comprises a server, a computer client and a television:
the server and the television software share the same preset specified encryption algorithm, and the calculated result is used as a password for entering a factory mode;
the television is used for combining the ID number of the television and two random numbers generated randomly into content needing to be calculated and sending the content to the server, and calculating a first password required for entering a factory mode for the sent content according to an encryption algorithm;
the server is used for calculating the content required by entering the factory mode according to an encryption algorithm after receiving the data and sending the content to the television;
the television is also used for receiving the content sent by the server, comparing whether the received data is consistent with the data calculated by the television, and if so, entering a factory mode;
the computer client is used for enabling after-sales personnel to log in through the account password, the client is connected with the server and the television to finish decryption of the television and enter a factory mode, and the television needs to perform decryption again after being powered off and restarted, so that the television can enter the factory mode again.
A television, wherein the television comprises a memory, a processor and a television-based factory mode encryption processing program stored in the memory and operable on the processor, and the processor implements any one of the steps of the television-based factory mode encryption processing method when executing the television-based factory mode encryption processing program.
A computer-readable storage medium, having a television-based factory mode encryption handler stored thereon, which when executed by a processor, implements the steps of any of the television-based factory mode encryption processing methods.
Has the beneficial effects that: compared with the prior art, the invention provides a factory mode encryption processing method based on a television, a system, a television and a storage medium, wherein the server and television software jointly use an encryption algorithm (such as an MD5 information summary algorithm, and the like), a calculated result is used as a password for entering a factory mode, the television combines an ID number of the television and two randomly generated random numbers into content needing to be calculated and sends the content to the server, the password required for entering the factory mode is calculated according to the encryption algorithm on the sent content, the server calculates the content required for entering the factory mode according to the encryption algorithm after receiving the data and sends the content to the television, the television compares whether the received data is consistent with the data calculated by the television after receiving the content sent by the server, and the television enters the factory mode if the data is consistent; after the computer client is used for after-sales personnel to log in through the account password, the client is connected with the server and the television to complete decryption of the television and enter a factory mode, the television needs to perform decryption again after being powered off and restarted, and the television can enter the factory mode again, so that the following effects can be achieved:
1. the input contents required by different machines entering the factory mode are different, the input contents required by the same machine after the machine is turned on and turned off every time are also different, and the machine after leaving the factory can be decrypted to enter the factory mode only by after-sales personnel with corresponding account numbers, so that the confidentiality of the television factory mode is ensured, and the confidentiality and the safety are improved;
2. the machine before leaving factory can be connected with the server through the local internet access, the content needing to be encrypted is sent to the server, the server obtains the MAC and ID number of the television after receiving the data, whether the machine is delivered or not is inquired in a warehouse delivery system, if the machine is not delivered, the received data is encrypted and sent to the television end, the decryption of the television factory mode is completed, and the television factory mode is automatically entered into the factory mode, the method ensures that the machine which is not delivered can be rapidly entered into the factory mode, and the factory can conveniently process the machine needing to be reworked or repaired on line, the invention can conveniently and rapidly enter into the working mode, and the entering efficiency is improved;
3. the account numbers of the sold personnel are bound with the MAC of the computer, corresponding account numbers are cancelled when the sold personnel leave the office, and the account numbers can record corresponding records of the decryption operation server for the television, so that the decryption account numbers can not be used by other people except the sold television, the television which has been delivered can enter a factory mode only by the corresponding sold personnel, and the safety is guaranteed.
Drawings
Fig. 1 is a flowchart of a specific implementation of a factory mode encryption processing method based on a television according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an MD5 message digest algorithm in the television-based factory mode encryption processing method according to the embodiment of the present invention.
Fig. 3 is a schematic diagram of a television-based factory mode encryption processing system using a remote controller to enter a factory mode quickly according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of entering factory mode by using PC of the television-based factory mode encryption processing system according to the embodiment of the present invention.
Fig. 5 is a schematic block diagram of an internal structure of a television according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed 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 at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
With the development of science and technology and the continuous improvement of the living standard of people, the use of various intelligent terminals such as an intelligent television is more and more popularized, and the intelligent television becomes an indispensable communication tool in the life of people.
The television software has two modes, one is a user mode, the other is a factory mode, related data required by factory production and related parameters required by designers for debugging the television, such as factory frequency points, audio curves, image quality parameters, screen parameter data, television software versions, television internal models, screen models, factory burnt KEY code data and the like, are arranged in the factory mode, the information can be checked in a factory menu, the related parameters in the factory mode are very important, if a terminal client modifies certain parameters, the functions of the television can be abnormal, and meanwhile, many important debugging parameters are required to be kept secret for other competitors, so that the confidentiality of the factory mode of the television software becomes especially important.
The television is switched from a factory mode to a user mode at the last detection station of the television production in a factory, all detection and browsing traces are eliminated, and the condition that a terminal client starts the television after taking the television is ensured that no detection or use trace exists in the client mode at the same time; there are two existing methods for switching from factory mode to user mode,
the method comprises the following steps: after receiving a switching instruction (a remote controller or a serial port instruction), the television software removes detection traces and use traces, simultaneously closes the factory mode and enters a user mode, and the factory mode closed by the method can be opened again by using a remote controller combination key;
the second method comprises the following steps: after receiving a switching instruction (a remote controller or a serial port instruction), the television software removes detection traces and use traces, simultaneously deletes all relevant data and factory menus required during factory production, and enters a user mode;
after the television is switched to the user mode, the factory mode can be opened by using methods such as a combination key and the like, the opening methods of the televisions of the same brand are basically consistent, and the opening method is too simple and easy to spread; the method that many manufacturers enter the factory mode by using the method can be searched in a search engine, the confidentiality is too poor, and the original purpose of confidentiality of the factory mode is not achieved; the second use method is switched into a user mode, simultaneously the factory mode is deleted, and a method for entering the factory mode is omitted (unless a specified computer is used for upgrading the television into software with the factory mode again through a serial port), so that the second use method has very good confidentiality, and relevant data of the factory mode cannot be acquired after delivery; however, since the method cannot enter the factory mode again, it is very inconvenient when the television produced in the factory needs to be reworked or after-sales personnel need to obtain related factory data, especially for the factory rework, the factory staff can only use the computer to upgrade the television one by one through the serial port, which seriously affects the rework efficiency and generates expensive rework cost.
In order to solve the problems in the prior art, the present embodiment provides a television-based factory pattern encryption processing method, and provides a new factory pattern encryption method, which includes three parts, namely, a server, a computer client and a television, wherein the server and television software use an encryption algorithm (such as an MD5 information digest algorithm) together, the calculated result is used as a password for entering the factory pattern, the television combines an ID number of the local computer and two random numbers generated randomly into a content to be calculated and sends the content to the server, and calculates a password required for entering the factory pattern according to the encryption algorithm for the sent content, the server calculates the content required for entering the factory pattern according to the encryption algorithm after receiving the data and sends the content to the television, the television receives the content sent by the server and compares whether the received data is consistent with the data calculated by the local computer, and then enters the factory pattern if the received data is consistent with the data calculated by the local computer; the computer client is used for enabling after-sales personnel to log in through the account password, the client is connected with the server and the television to finish decryption of the television and enter a factory mode, and the television needs to perform decryption again after being powered off and restarted, so that the television can enter the factory mode again.
The invention provides a new factory mode encryption method aiming at the defects of the existing factory mode encryption method of television software, has good confidentiality, is simple to operate when the television software enters the factory mode again, is convenient to maintain after sale, can effectively improve the after-sale efficiency and reduce the after-sale cost.
Exemplary method
The factory mode encryption processing method based on the television of the embodiment can be applied to the television, and as shown in fig. 1 specifically, the factory mode encryption processing method based on the television includes the following steps:
s100, when an instruction of entering a factory mode is received, the television acquires an ID number of the television and a random number generated randomly;
the invention is based on a television, and is provided with a server and a computer client; the server and the television software use an encryption algorithm (such as MD5 information abstract algorithm) together, the calculated result is used as a password for entering the factory mode, the television combines the ID number of the television and two random numbers generated randomly into content needing to be calculated and sends the content to the server, and the password needed for entering the factory mode is calculated according to the transmission content by the encryption algorithm.
Before the implementation of the method, factory mode data is not deleted but the factory mode is encrypted when the television needs to be set to factory reset in advance, when the television after the factory reset needs to enter the factory mode again, a password needs to be input for decryption to enter the factory mode, and the input password is calculated through a specified encryption algorithm according to the combination of the ID number of the television and two randomly generated numbers. .
Namely, the embodiment of the invention presets the television: the factory mode cannot be deleted but encrypted when the television is subjected to factory reset, if the television subjected to factory reset needs to enter the factory mode again, the television can be decrypted and enters the factory mode only by inputting the password, and the password to be input is calculated according to the ID number of the television and the combination of two randomly generated numbers, so that the passwords required to be input for each television and the same television to enter the factory mode every time are different, and the confidentiality of the factory mode is further ensured. Namely, in the embodiment of the invention, the factory mode is adopted for television delivery without deleting the factory mode, the combination of the ID number of the television and two randomly generated numbers is adopted, and the password is generated by using the specified encryption algorithm to enter the factory mode, so that the method is safe and convenient.
The invention can set up the random number combination used for producing according to ID number and random of the television in advance on the television, through encrypting the calculation and generating and entering the appointed encryption algorithm of the factory mode password; and setting a designated encryption algorithm for generating a factory mode entering password through encryption calculation according to the ID number of the television and a random number combination generated randomly at the server side in advance. The specified encryption algorithm preferably adopts an MD5 message digest algorithm and the like. In the embodiment of the invention, the television and the server both adopt the same specified encryption algorithm, so that a factory mode which is convenient for generating corresponding consistent passwords and decrypting and opening the television is generated conveniently.
The MD5 Message Digest Algorithm (english: MD5 Message-Digest Algorithm), a widely used cryptographic hash function, can generate a 128-bit (16-byte) hash value (hash value) to ensure the integrity and consistency of information transmission. The process of the MD5 algorithm: processing the original text, setting an initial value, circularly processing and splicing the results.
In the embodiment of the invention, when the instruction of entering the factory mode is received, the television acquires the ID number of the television and the random number generated randomly.
Specifically, when the television receives a designated remote key value for entering the factory mode, a process for automatically entering the factory mode is started, and the television acquires an ID number of the television itself and a random number generated randomly.
For example, after the television performs factory reset operation, if a specific remote control key value (for example, a certain reset factory mode key on a factory remote controller) is received, the television starts a process of automatically entering a factory mode. The television of the invention can automatically acquire the ID number of the television (such as the serial number of the television), two-digit random number generated randomly, and the like.
Step S200, combining the ID number of the television and the randomly generated random number into content to be calculated by the television, sending the content to a server, and combining the ID number of the television and the randomly generated random number to calculate a first password required for entering a factory mode according to a preset specified encryption algorithm;
in this step, the television receives an operation instruction for entering the factory mode, combines the ID number of the television with the randomly generated random number into a content to be calculated, and sends the content to the server, and combines the ID number of the television with the randomly generated random number according to a preset specified encryption algorithm to calculate a first password required for entering the factory mode.
Specifically, in the embodiment of the invention, when the television needs to enter the factory mode, the television combines the ID number of the television and two random numbers generated randomly into the content needing to be calculated, and the content is sent to the server through the network, so that the server side can generate a second password for the television to enter the factory mode according to the content sent by the television side;
meanwhile, the television local machine of the invention combines the ID number of the television with the random number generated randomly, carries out encryption calculation according to the preset MD5 information abstract algorithm, and generates the first password required for entering the factory mode. The ID number of the television is equivalent to the ID card of the television, and corresponding service can be obtained through legal television ID. id is an identification number, an account number and a unique code.
The process of the MD5 information abstract algorithm comprises the following steps: processing original text, setting initial value, cyclic processing and splicing result
First step, processing the original text
For example, first, the result of the remainder of the length of the original text (bit) on 512 is calculated, and if not equal to 448, the original text needs to be filled in such a way that the result of the remainder of the original text on 512 is equal to 448. The method of padding is that the first bit is padded with 1 and the rest of the bits are padded with 0. After filling, the length of the information is 512X N +448.
Then, the true length of the original text is recorded with the remaining positions (512-448 =64 bits), and the binary value of the length is complemented at the end. The length of the information thus processed is 512 x (N + 1).
Second step of setting initial value
The hash result length of MD5 is 128 bits, and is divided into 4 groups per 32 bits. These 4 sets of results are derived from 4 initial values a, B, C, D over time. In the official implementation of MD5, the initial values of a, B, C, D are as follows (16-ary):
A＝0x01234567
B＝0x89ABCDEF
C＝0xFEDCBA98
D＝0x76543210
third step of cyclic processing
As shown in fig. 2, a, B, C, D in fig. 2 are four packets of hash values. Each cycle allows the old ABCD to generate a new ABCD. How many cycles in total? Determined by the length of the original text after processing.
It is assumed that the processed text length is M main loop times = M/512, and each main loop contains 512/32 × 4=64 sub-loops. The flow of a single sub-cycle is represented in the above figure.
The fourth step of splicing results
The step is simple, four values A, B, C and D finally generated by circular processing are spliced together and converted into character strings to generate corresponding passwords.
Step S300, the television receiving server calculates a second password required for entering a factory mode according to a preset specified encryption algorithm according to the ID number of the television and a random number combination generated randomly;
in the embodiment of the invention, the television receiving server calculates the second password required for entering the factory mode according to the preset specified encryption algorithm by combining the ID number of the television and the random number generated at random.
When the method is implemented specifically, an operator can log in the server through the client, the server receives the content which needs to be calculated and combines the ID number of the television and the random number generated randomly, and a second password which is needed for entering a factory mode is calculated according to the ID number of the television and the random number generated randomly through an encryption algorithm (the encryption algorithm is the same as that of the television) which is preset by the server; the operator can send the generated second password to the television through the server to confirm whether the factory mode of the television can be turned on.
And the television receiving server calculates a second password required by entering the factory mode according to the preset specified encryption algorithm by combining the ID number of the television with the random number generated randomly.
And S400, comparing and judging the received second password sent by the server with the first password generated by the television, and controlling to enter a factory mode when the second password is consistent with the first password.
In the embodiment of the invention, the television compares the received second password sent by the server with the first password generated by the television, and when the second password is consistent with the first password, the television is controlled to enter a factory mode.
That is, in the embodiment of the present invention, after the television performs factory reset operation, if a specific remote key value (such as a certain key on a factory remote controller) is received, the television starts a process of automatically entering a factory mode, that is, an ID number of the television itself and two randomly generated numbers are combined and sent to a server of a designated address through a network port, and a password required to be input for entering the factory mode is calculated according to a designated algorithm (such as an MD5 information digest algorithm, etc.) for the sent content; and if the password returned by the server is received within 2 minutes after the instruction is sent, and the password returned by the server is the same as the password calculated by the television, the television automatically enters a factory mode.
In specific implementation, after the television is subjected to factory reset operation, if a serial port instruction for entering a factory mode is received, which is sent by a PC (personal computer) end through a serial port, an ID (identity) number of the television and two randomly generated numbers are combined and sent to the PC end through the serial port instruction, and meanwhile, a password required to be input for entering the factory mode is calculated according to a designated algorithm according to the sent content; if the password returned by the PC end through the serial port can be received within 2 minutes after the serial port command is sent, and the returned password is the same as the password calculated by the television, the television automatically enters a factory mode.
Therefore, the invention provides a new factory mode encryption method aiming at the defects of the existing factory mode encryption method of television software, has good confidentiality, is simple to operate when the television software enters the factory mode again, is convenient to maintain after sale, can effectively improve the after-sale efficiency and reduce the after-sale cost.
According to the embodiment of the invention, after the television enters the factory mode, the television needs to be subjected to password decryption operation which is calculated according to a preset specified encryption algorithm through the combination of the ID number of the television and the random number generated at random after being restarted after being powered off, and the television can enter the factory mode again.
Based on the above method embodiment, the present invention further provides a television-based factory mode encryption processing system, which includes a server, a computer client and a television:
the server and the television software share the same preset specified encryption algorithm, and the calculated result is used as a password for entering a factory mode;
the television is used for combining the ID number of the television and two random numbers generated randomly into content needing to be calculated and sending the content to the server, and calculating a first password required for entering a factory mode for the sent content according to an encryption algorithm;
the server is used for calculating the content required by entering the factory mode according to an encryption algorithm after receiving the data and sending the content to the television;
the television is also used for receiving the content sent by the server, comparing whether the received data is consistent with the data calculated by the local computer or not, and entering a factory mode if the received data is consistent with the data calculated by the local computer;
the computer client is used for enabling after-sales personnel to log in through an account password, the client is connected with the server and the television to complete decryption of the television and enter a factory mode, and the television needs to perform decryption again after being powered off and restarted so that the television can enter the factory mode again.
When the method is implemented, the server and the television software use an encryption algorithm (such as an MD5 information summary algorithm) together, a calculated result is used as a password for entering a factory mode, the television combines an ID number of the television and two random numbers generated randomly into content to be calculated and sends the content to the server, the password required for entering the factory mode is calculated for the sent content according to the encryption algorithm, the server calculates the content required for entering the factory mode according to the encryption algorithm after receiving the data and sends the content to the television, the television compares whether the received data is consistent with the data calculated by the television after receiving the content sent by the server, and the television enters the factory mode if the received data is consistent with the data calculated by the television; and the computer client is used for connecting the server and the television to complete the decryption of the television and enter a factory mode after the after-sales personnel log in through the account number password, and the television needs to perform the decryption operation again after being powered off and restarted so as to enter the factory mode again.
The television set provided by the embodiment of the invention has the following functions:
that is, the present invention needs to realize the following functions during the development of the television software:
function 1, the factory mode cannot be deleted but encrypted when the television is factory reset, if the television after factory reset needs to enter the factory mode again, the television can be decrypted and enter the factory mode only by inputting a password, and the password to be input is calculated according to the ID number of the television and the combination of two randomly generated numbers, so that the passwords required to be input for each television and the same television to enter the factory mode every time are different, and the confidentiality of the factory mode is further ensured;
function 2, after the television performs factory reset operation, if a specific remote control key value (such as a certain key on a factory remote controller) is received, the television starts a process of automatically entering a factory mode, namely, an ID number of the television and two randomly generated numbers are combined and sent to a server of a specified address through a network port, and meanwhile, a password required to be input when the television enters the factory mode is calculated according to a specified algorithm (such as an MD5 information summary algorithm) according to the sent content; if the password returned by the server is received within 2 minutes after the instruction is sent, and the password returned by the server is the same as the password calculated by the television, the television automatically enters a factory mode;
after the factory reset operation is carried out on the television, if a serial port instruction for entering a factory mode is received, which is sent by a PC (personal computer) end through a serial port, the ID number of the television and two randomly generated numbers are combined and sent to the PC end through the serial port instruction, and meanwhile, a password required to be input for entering the factory mode is calculated according to a specified algorithm according to the sent content; if the password returned by the PC end through the serial port can be received within 2 minutes after the serial port instruction is sent, and the returned password is the same as the password calculated by the television, the television automatically enters a factory mode.
The server needs to implement the following functions:
function 1), after receiving the decipher content that the television sends through the network (the television and PC end send the content to the server through the network port, the packet header is different, the server can distinguish the content that is sent by television or PC), the server obtains the MAC address of the television automatically, and inquire whether the machine has already been delivered from the warehouse in the warehouse delivery system, if the television has not been delivered from the warehouse yet, the server begins to calculate the decipher content, and return the calculated password to the television through the network port, make the television enter the factory mode automatically;
function 2), account number and password which can log in the PC client and MAC of the used decrypted PC are managed, and when the server receives the account number and the password which are sent by the PC, the client can be logged in for decryption operation only when the account number, the password and the MAC of the PC are in one-to-one correspondence;
function 3), after receiving the decrypted content sent by the PC end through the network, the server calculates the decrypted content and returns the result to the PC end through the network port, and the PC sends the password to the television through the serial port instruction, so that the television enters a factory mode.
The computer client (PC end) of the scheme needs to realize the following functions:
function 1), after opening a PC client and inputting an account and a password, the PC sends the account, the password and the local MAC to a server end with a specified address through a network, and judges whether to log in a decryption interface according to a result returned by the server;
function 2), after logging in to the decryption interface, the PC sends a decryption instruction to the television end through the serial port, after the television returns the content to be decrypted through the serial port, the PC sends the content to the server end through the network, after the server returns the decryption, the password is transmitted to the television through the serial port instruction, and the television enters a factory mode.
When the invention is implemented specifically, the invention is applied to television or other consumer electronic products which need to enter a factory mode after the operation of factory reset (such as production rework, damaged machine repair or after-sales personnel use), and the specific application is as follows:
1) The first application is the situation that the television is quickly in the factory mode by using the remote controller, after the television is subjected to factory reset, the television needs to be re-worked for some reasons or the damaged television needs to be repaired, as shown in fig. 3, at this time, an operator only needs to access a network cable to the television and press a key (a certain key of the factory remote controller) for quickly entering the factory mode, for example, the remote controller sends a remote control code for quickly entering the factory mode to the television;
the tv will start the process of automatically entering factory mode, (1), sending the content to be decrypted to the server side, e.g. the tv combines its own ID number with two randomly generated digits and sends the server.
After receiving the content needing to be decrypted, the server inquires whether the machine is delivered from the warehouse system, if not, the server calculates the decrypted content and returns the calculated password to the television through the network. (2) And the server returns the password entering the factory mode to the television.
If the password returned by the server is received within 2 minutes after the television sends the instruction, whether the returned password is consistent with the password calculated by the television is judged, and if the returned password is consistent with the password calculated by the television, the television enters a factory mode. In the embodiment of the invention, the password returned by the server is the same as the password calculated by the television, so that the television automatically enters a factory mode, an operator does not need to use a computer to upgrade the television one by one through a serial port, and the rework efficiency can be greatly improved.
2) The second case is to enter factory mode using the PC, as shown in fig. 4, comprising the steps of:
the method comprises the following steps that (1) a PC client receives a user operation instruction to input an account and logs in a client through a password; the PC client sends information such as an account number to a server;
step (2), after receiving the account information, the server checks whether the account information conforms to the pre-stored information (the account, the password and the MAC of the television), and then returns whether the account is legal to the PC client;
step (3), when the account information passes the verification, entering a factory decryption mode, and sending an instruction for starting entering the factory mode through a serial port; i.e. to send an indication to the TV end to enter factory mode.
Step (4), after receiving the instruction, the television combines the ID number of the television with two randomly generated numbers and returns the ID number and the two randomly generated numbers to the PC client; namely, the television sends the content needing to be decrypted to the PC client.
And (5) after receiving the content needing to be decrypted, the PC client sends the decrypted content to the server.
And (6) after receiving the content needing to be decrypted, the server decrypts the required password through the specified encryption algorithm and returns the password to the PC client through the internet access, namely, the server returns the decrypted password to the PC client.
And (7) after receiving the password, the computer client sends the password to the TV end through the serial port, namely, the decrypted secret code is sent to the TV end of the television, and the TV end judges whether the received password is consistent with the password calculated by the computer client, and if so, the computer client enters a factory mode.
In the embodiment of the invention, in order to ensure the confidentiality of a factory mode, a television which is delivered from a warehouse can not enter the factory mode by using a shortcut key any more, after-sales personnel can decrypt the television only through a PC and a corresponding client, the after-sales personnel log in a decryption interface of the client through an account number and a password, and when the account number, the password and the MAC of the PC correspond to information prestored in a server in one-to-one manner, the PC can automatically decrypt the information; the PC firstly sends a factory mode command to the television through the serial port, after the television returns contents to be decrypted through the serial port, the PC sends the contents to the server through the network, and after the server returns the decrypted contents, the password is transmitted to the television through the serial port command, so that the television enters the factory mode. Therefore, the invention realizes a method for rapidly entering the television factory mode, which not only ensures the safety, but also can rapidly enter the television factory mode.
Exemplary device
Based on the above embodiments, the present invention further provides a television, and a schematic block diagram thereof may be as shown in fig. 5. The television comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein the processor of the television is configured to provide computing and control capabilities. The memory of the television comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The network interface of the television is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a television-based factory mode encryption processing method. The display screen of the television can be a liquid crystal display screen or an electronic ink display screen.
It will be appreciated by those skilled in the art that the block diagram shown in fig. 5 is only a block diagram of a portion of the structure associated with the inventive arrangements and does not constitute a limitation on the television set to which the inventive arrangements are applied, and that a particular television set may include more or less components than those shown in the drawings, or may combine certain components, or have a different arrangement of components.
In one embodiment, a television set is provided, the television set includes a memory, a processor, and a television-based factory mode encryption handler stored on the memory and executable on the processor, and when the processor executes the television-based factory mode encryption handler, the following operation instructions are implemented:
when receiving an instruction of entering a factory mode, the television acquires an ID number of the television and a random number generated randomly;
the television combines the ID number of the television with the randomly generated random number into content to be calculated and sends the content to the server, and the ID number of the television and the randomly generated random number are combined to calculate a first password required for entering a factory mode according to a preset specified encryption algorithm;
the television receiving server calculates a second password required for entering a factory mode according to the ID number of the television and the random number combination generated randomly according to a preset specified encryption algorithm;
and the television compares the received second password sent by the server with the first password generated by the television, and controls to enter a factory mode when the second password is consistent with the first password, specifically as described above.
The television compares and judges the received second password sent by the server with the first password generated by the television, and when the second password is consistent with the first password, the step of controlling to enter the factory mode further comprises the following steps:
after entering the factory mode, the television needs to re-enter the factory mode through the password decryption operation required by entering the factory mode, which is calculated by combining the ID number of the television and the random number generated at random according to a preset specified encryption algorithm after being powered off and restarted.
Wherein, when receiving the instruction of entering the factory mode, the step that the television acquires the ID number of the television and the random number generated randomly comprises:
factory mode data is not deleted but the factory mode is encrypted when the television is preset to factory reset, when the television after factory reset needs to enter the factory mode again, a password needs to be input for decryption to enter the factory mode, and the input password is calculated through a specified encryption algorithm according to the combination of the ID number of the television and two randomly generated numbers.
Wherein, when receiving the instruction of entering the factory mode, the step that the television obtains the ID number of the television and the random number generated at random comprises:
presetting a designated encryption algorithm for generating a factory mode entering password through encryption calculation according to an ID number of the television and a random number combination generated randomly on the television;
and setting a specified encryption algorithm for generating a factory mode entering password through encryption calculation according to the ID number of the television and a random number combination generated randomly at the server in advance.
Wherein, when receiving the instruction of entering the factory mode, the step that the television acquires the ID number of the television and the random number generated randomly comprises the following steps:
when the television receives a designated remote key value for entering the factory mode, a process of automatically entering the factory mode is started, and the television acquires the ID number of the television and a random number generated randomly.
The method comprises the following steps that the television combines the ID number of the television with the randomly generated random number into content to be calculated and sends the content to the server, and the ID number of the television and the randomly generated random number are combined according to a preset specified encryption algorithm to calculate a first password required by entering a factory mode, wherein the steps comprise:
when the television needs to enter a factory mode, the television combines the ID number of the television and two random numbers generated randomly into a content needing to be calculated and sends the content to the server through the network;
and simultaneously combining the ID number of the television with a random number generated randomly, carrying out encryption calculation according to a preset MD5 information digest algorithm, and generating a first password required for entering a factory mode.
The step of the television receiving server calculating a second password required for entering the factory mode according to the ID number of the television and the random number combination generated at random by the television receiving server according to a preset specified encryption algorithm comprises the following steps:
the server receives the content which is combined by the ID number of the television and the random number generated randomly and needs to be calculated, and calculates a second password needed by entering a factory mode according to a preset encryption algorithm;
and the television receiving server calculates a second password required by entering the factory mode according to the preset specified encryption algorithm by combining the ID number of the television with the random number generated randomly.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases or other media used in the embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, compared with the prior art, the invention provides a factory mode encryption processing method based on a television, a system, a television and a storage medium, the invention comprises a server, a computer client and a television, wherein the server and television software use an encryption algorithm (such as an MD5 information abstract algorithm, etc.), the calculated result is used as a password entering a factory mode, the television combines the ID number of the local machine and two random numbers generated randomly into a content needing to be calculated and sends the content to the server, and calculates the password needed to enter the factory mode according to the encryption algorithm for the sending content, the server calculates the content needed to enter the factory mode according to the encryption algorithm after receiving the data and sends the content to the television, the television compares whether the received data is consistent with the data calculated by the local machine after receiving the content sent by the server, and then enters the factory mode if the received data is consistent with the data calculated by the local machine; after the computer client is used for logging in by after-sales personnel through the account password, the client is connected with the server and the television to finish decryption of the television and enter a factory mode, and a decryption operator is required to enter the factory mode again after the television is powered off and restarted, so that the following effects can be achieved:
1. different machines have different input contents when entering the factory mode, the same machine has different input contents after being turned on and turned off every time, and the machine leaving the factory can be decrypted to enter the factory mode only by after-sales personnel with corresponding account numbers, so that the confidentiality of the television factory mode is ensured, and the confidentiality and the safety are improved;
2. the machine before leaving factory can be connected with the server through the local internet access, the content needing to be encrypted is sent to the server, the server obtains the MAC and ID number of the television after receiving the data, whether the machine is delivered or not is inquired in a warehouse delivery system, if the machine is not delivered, the received data is encrypted and sent to the television end, the decryption of the television factory mode is completed, and the television factory mode is automatically entered into the factory mode, the method ensures that the machine which is not delivered can be rapidly entered into the factory mode, and the factory can conveniently process the machine needing to be reworked or repaired on line, the invention can conveniently and rapidly enter into the working mode, and the entering efficiency is improved;
3. the account numbers of the sold personnel are bound with the MAC of the computer, corresponding account numbers are cancelled when the sold personnel leave the office, and the account numbers can record corresponding records of the decryption operation server for the television, so that the decryption account numbers can not be used by other people except the sold television, the television which has been delivered can enter a factory mode only by the corresponding sold personnel, and the safety is guaranteed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. A factory mode encryption processing method based on a television is characterized by comprising the following steps:
when receiving an instruction of entering a factory mode, the television acquires an ID number of the television and a random number generated randomly;
the television combines the ID number of the television with the randomly generated random number into content to be calculated and sends the content to the server, and the ID number of the television and the randomly generated random number are combined to calculate a first password required for entering a factory mode according to a preset specified encryption algorithm;
the television receiving server calculates a second password required for entering a factory mode according to the ID number of the television and the random number combination generated randomly according to a preset specified encryption algorithm;
the television compares the received second password sent by the server with the first password generated by the television, and when the second password is consistent with the first password, the television is controlled to enter a factory mode;
the step of acquiring the ID number of the television and the random number generated randomly by the television when receiving the instruction of entering the factory mode comprises the following steps:
presetting a designated encryption algorithm for generating a factory mode entering password through encryption calculation according to an ID number of the television and a random number combination generated randomly on the television;
setting a random number combination which is randomly generated according to the ID number of the television at the server in advance, and generating a specified encryption algorithm of a factory mode entering password through encryption calculation;
when the television needs to enter a factory mode, the television combines the ID number of the television and two random numbers generated randomly into a content needing to be calculated and sends the content to the server through the network;
meanwhile, the ID number of the television is combined with a random number which is randomly generated, encryption calculation is carried out according to a preset MD5 information abstract algorithm, and a first password which is required for entering a factory mode is generated;
if the television is delivered from the warehouse, the television cannot enter a factory mode by using a shortcut key, and can be decrypted only by the PC and the corresponding client.
2. The television-based factory pattern encryption processing method of claim 1, wherein the television compares the received second password sent by the server with the first password generated by the television itself, and when the second password is consistent with the first password, the step of controlling to enter the factory pattern further comprises:
after entering the factory mode, the television needs to re-enter the factory mode through the password decryption operation required by entering the factory mode, which is calculated by combining the ID number of the television and the random number generated randomly according to the preset specified encryption algorithm after being powered off and restarted.
3. The television-based factory mode encryption processing method of claim 1, wherein said step of, upon receiving the enter factory mode command, the television acquiring the ID number and the randomly generated random number of the television itself, is preceded by:
factory mode data is not deleted but the factory mode is encrypted when the television is preset to factory reset, when the television after factory reset needs to enter the factory mode again, a password needs to be input for decryption to enter the factory mode, and the input password is calculated through a specified encryption algorithm according to the combination of the ID number of the television and two randomly generated numbers.
4. The television-based factory mode encryption processing method of claim 1, wherein said step of acquiring, by the television set, the ID number of the television set itself and the randomly generated random number upon receiving the instruction to enter the factory mode includes:
when the television receives a designated remote key value for entering the factory mode, a process of automatically entering the factory mode is started, and the television acquires the ID number of the television and a random number generated randomly.
5. The television-based factory pattern encryption processing method as claimed in claim 1, wherein said television receiver server calculates a second password required for entering the factory pattern according to a preset specified encryption algorithm based on a combination of the ID number of the television and a random number generated at random, comprising:
the server receives the content which is combined by the ID number of the television and the random number generated randomly and needs to be calculated, and calculates a second password needed for entering a factory mode according to a preset encryption algorithm;
and the television receiving server calculates a second password required by entering the factory mode according to the preset specified encryption algorithm by combining the ID number of the television with the random number generated randomly.
6. A factory mode encryption processing system based on a television is characterized by comprising a server, a computer client and a television:
the server and the television software share the same preset specified encryption algorithm, and the calculated result is used as a password for entering a factory mode;
the television is used for combining the ID number of the television and two random numbers generated randomly into content needing to be calculated and sending the content to the server, and calculating a first password required for entering a factory mode for the sent content according to an encryption algorithm;
the server is used for calculating the content required by entering the factory mode according to an encryption algorithm after receiving the data and sending the content to the television;
the television is also used for receiving the content sent by the server, comparing whether the received data is consistent with the data calculated by the local computer or not, and entering a factory mode if the received data is consistent with the data calculated by the local computer;
the computer client is used for connecting the server and the television to finish decryption of the television and enter a factory mode after-sales personnel log in through an account password, and the television can enter the factory mode again when needing to perform decryption again after being powered off and restarted;
when the television needs to enter a factory mode, the television combines the ID number of the television and two random numbers generated randomly into a content needing to be calculated and sends the content to the server through the network;
meanwhile, the ID number of the television is combined with a random number which is randomly generated, encryption calculation is carried out according to a preset MD5 information abstract algorithm, and a first password which is required for entering a factory mode is generated;
if the television is delivered from the warehouse, the television cannot enter a factory mode by using a shortcut key, and can be decrypted only by the PC and the corresponding client.
7. A television set comprising a memory, a processor and a television-based factory pattern encryption processing program stored on the memory and executable on the processor, wherein the processor implements the steps of the television-based factory pattern encryption processing method according to any one of claims 1 to 5 when executing the television-based factory pattern encryption processing program.
8. A computer-readable storage medium, having stored thereon a television-based factory pattern encryption processing program, which when executed by a processor, performs the steps of the television-based factory pattern encryption processing method of any one of claims 1 to 5.
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