Computer remote control method and system

Abstract

The invention discloses a computer remote control method and system, and belongs to the technical field of computer remote control, and the method specifically comprises the steps: carrying out the equipment authentication of a control device and a computer through a public key infrastructure; the control equipment sends a connection request to the computer through the Internet of Things platform, and the computer verifies the digital signature of the control equipment, returns confirmation information and establishes a secure communication channel; the control equipment generates and sends a remote control instruction, encrypts the remote control instruction, scores the priorities of the communication channels through time delay, performs real-time updating, and selects the communication channel with the highest priority for transmission; the computer receives the remote control instruction sent by the control equipment, decrypts and executes the corresponding instruction, and records an operation log of each remote control; through encryption operation on the remote control instruction and selection of the optimal communication channel, the security and efficiency of command transmission are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer remote control, in particular to a computer remote control method and system. Background Art

[0002] With the continuous development of information technology, the Internet of Things (IoT) has been widely applied in various fields, playing a particularly important role in remote control and smart device management. Remote control technology enables users to manage and control devices regardless of geographic location, greatly improving work efficiency and convenience. Traditional computer remote control technology relies on connections such as local area networks or VPNs. While this technology enables control functions, it poses challenges in security, stability, and data transmission efficiency.

[0003] For example, a Chinese patent with authorization announcement number CN105892299B discloses a computer remote control system and method based on serial port connection, in which the system includes: a control terminal, which is a computer spatially separated from the controlled terminal, which sends and receives emails via the Internet, is responsible for sending control instructions and ultimately displays the execution result screen; a controlled terminal, which is a core computer installed on the company's internal production line, connected to the company's intranet, and has remote assistance requirements; a transfer terminal, which is an intranet computer, communicates with the controlled terminal and the mail server via the intranet, and sends and receives emails with the outside world through the mail server; and a mail server, which is located within the company, and the transfer terminal sends and receives emails with the outside world through the mail server. This invention utilizes the computer's own RS232 serial port for communication, ensuring that the internal network remains physically isolated, preventing virus attacks from harming the entire system, and achieving remote control without the controlled computer being connected to the outside world via a network cable.

[0004] For example, the patent application with publication number CN115701070A discloses a computer device, a remote control method thereof, and related devices. The computer device includes: a network connection module, configured to: achieve communication connection with a server; a first control unit, electrically coupled to the network connection module; a second control unit, electrically coupled to the first control unit; the first control unit is configured to: when the computer device enters a standby state, control the network connection module to establish a connection with the server; and, upon receiving a remote control instruction sent by the server, start the second control unit and send the remote control instruction to the second control unit; and the second control unit is configured to: start and receive the remote control instruction under the control of the first control unit; and perform the operation corresponding to the remote control instruction; wherein the power consumption of the first control unit is lower than that of the second control unit.

[0005] The above technical solutions have the following defects: 1) they are prone to security issues when used in an external network environment; 2) they cannot ensure that remote control instructions are transmitted to the computer safely and quickly. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention proposes a computer remote control method and system, which registers the control device and the computer through the Internet of Things platform, uses the public key infrastructure to authenticate the device, establishes a secure connection, and the control device sends a connection request to the computer through the Internet of Things platform. The computer verifies the digital signature of the control device and returns a confirmation message. The control device sends a remote control instruction, encrypts the remote control instruction, utilizes a secure transmission strategy, and selects the communication channel with the highest priority for transmission. The computer receives the remote control instruction sent by the control device, decrypts and executes the corresponding instruction. The computer encrypts the execution result and feeds it back to the control device. The control device decrypts and displays the result, and the Internet of Things platform records the operation log of each remote control.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A computer remote control method, comprising:

[0009] Device authentication for control devices and computers using public key infrastructure;

[0010] The control device sends a connection request to the computer through the IoT platform. The computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel.

[0011] The control device generates and sends remote control commands, encrypts the remote control commands, scores the priority of the communication channels by delay, updates them in real time, and selects the communication channel with the highest priority for transmission;

[0012] The computer receives the remote control instructions sent by the control device, decrypts and executes the corresponding instructions, and records the operation log of each remote control.

[0013] Specifically, the control device includes: a smart phone and a computer.

[0014] Specifically, the control device sends a connection request to the computer through the Internet of Things platform. The computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel, including:

[0015] The control device generates a connection request. The specific format of the connection request is: ,in, Indicates a connection request. Indicates the unique identifier of the control device, Indicates the timestamp of the control device generating the connection request. Indicates the digital signature of the control device, , Represents the digital signature algorithm, Represents a hash function that generates a unique value of fixed length. Indicates the private key that controls the device;

[0016] The control device sends the generated connection request to the computer through the IoT platform;

[0017] After receiving the connection request, the computer verifies the digital signature of the control device. The specific formula for verifying the digital signature is:

[0018] ,in, Represents the digital signature verification function, Represents the digital signature verification algorithm, Indicates the public key of the control device;

[0019] The computer generates connection confirmation information and sends the connection confirmation information to the control device through the Internet of Things platform.

[0020] Specifically, the specific format of the connection confirmation information is:

[0021] ,in, Indicates connection confirmation information. represents the shared session key, Indicates a message confirming the connection. , Indicates the encryption algorithm, Represents the computer's private key.

[0022] Specifically, the control device generates and sends remote control instructions, encrypts the remote control instructions, scores the priorities of communication channels by delay, updates them in real time, and selects the communication channel with the highest priority for transmission, including:

[0023] The control device sends a remote control instruction, encrypts the remote control instruction, and obtains the encrypted remote control instruction;

[0024] Using secure transmission strategies to compensate for delays in wireless communications and select optimal communication channels;

[0025] The encrypted remote control instructions are transmitted to the computer through the optimal communication channel.

[0026] Specifically, the control device sends a remote control instruction, encrypts the remote control instruction, and obtains the encrypted remote control instruction, including:

[0027] Set the initial key to , using the initial key Generate n subkeys and set the subkey set to , , Indicates the nth subkey;

[0028] The remote control instructions are divided into M blocks, each block has a length of L, and a shift operation is defined for each block. The specific formula is:

[0029] ;

[0030] in, represents a bit shift operation, Represents the i-th block of remote control instructions, represents the e-th subkey, Exclusive OR operation is a bitwise operator that compares each bit of two binary numbers. If the two bits are different, the result is 1, and if they are the same, the result is 0. Indicates performing an XOR operation on the i-th block of remote control instructions and the e-th subkey. It represents the left shift operation, which is a bit shift operator that moves each bit of the binary number to the left by the specified number of bits. The left shift operation is equivalent to multiplying by the specified power of 2. The result is shifted to the left The result is the result bit modulo L, Indicates the modulo operation, which is an arithmetic operator that represents the remainder operation. The result is modulo L, and the result is a value between 0 and L-1;

[0031] Encrypt the remote control instructions. The specific encryption formula is:

[0032] ;

[0033] in, represents the encrypted remote control instruction block i;

[0034] The M blocks of remote control instructions are encrypted to complete the encryption operation of the remote control instructions.

[0035] Specifically, the use of a secure transmission strategy to compensate for delays in wireless communications and select an optimal communication channel includes:

[0036] Obtaining the delay of each communication channel in wireless communication, and compensating the delay in wireless communication by using the original delay of the communication channel, the delay compensation coefficient, and the expected value of the delay of all communication channels in wireless communication;

[0037] Establish a comprehensive priority scoring model for communication channels and score the comprehensive priority of communication channels at time p;

[0038] According to the dynamic changes of the wireless environment, the comprehensive priority score of the communication channel is updated in real time using the update coefficient to obtain the real-time comprehensive priority score of the communication channel;

[0039] The optimal communication channel is obtained based on the real-time comprehensive priority score of the communication channel.

[0040] Specifically, the computer receives the remote control instruction sent by the control device, decrypts it and executes the corresponding instruction, including:

[0041] A dynamic reverse shift operation is defined for each remote control instruction. The specific formula is:

[0042] ;

[0043] in, represents a dynamic inverse shift operation, Indicates right shift operation;

[0044] Decrypt the remote control command. The specific decryption formula is:

[0045] .

[0046] A computer remote control system includes: a registration and authentication module, a connection establishment module, a remote control instruction transmission module and a remote control instruction receiving module;

[0047] The registration and authentication module uses a public key infrastructure to perform device authentication on the control device and the computer;

[0048] The connection establishment module is used to control the device to send a connection request to the computer through the Internet of Things platform, and the computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel;

[0049] The remote control instruction transmission module is used to control the device to generate and send remote control instructions, encrypt the remote control instructions, score the priority of the communication channel by delay, update it in real time, and select the communication channel with the highest priority for transmission;

[0050] The remote control instruction receiving module is used to receive the remote control instructions sent by the control device, decrypt and execute the corresponding instructions, and record the operation log of each remote control.

[0051] Specifically, the remote control instruction transmission module includes a remote control instruction encryption unit and a remote control instruction transmission unit;

[0052] The remote control instruction encryption unit is used to encrypt the remote control instruction sent by the control device;

[0053] The remote control instruction transmission unit is used to transmit the encrypted remote control instruction to the computer through the optimal communication channel.

[0054] An electronic device includes a memory and a processor, wherein the memory stores a computer program and the processor implements the steps of a computer remote control method when executing the computer program.

[0055] A computer-readable storage medium stores computer instructions, which execute the steps of a computer remote control method when the computer instructions are executed.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. The present invention proposes a computer remote control method, which can remotely control a computer through a smart phone, tablet computer or other smart devices. No matter where you are, you can manage and control the computer anytime and anywhere without being limited to a specific location.

[0058] 2. The present invention proposes a computer remote control method, which greatly improves the security and efficiency of command transmission by encrypting remote control instructions and selecting the optimal communication channel.

[0059] 3. The present invention proposes a computer remote control method, which can access files, applications and other resources on the computer, shut down or hibernate the computer, realize resource sharing and utilization, and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 A flow chart of a computer remote control method provided by the present invention;

[0061] Figure 2 This is an architecture diagram of a computer remote control system provided by the present invention. DETAILED DESCRIPTION

[0062] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, it should be noted that in the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "No. 1", "No. 2" and "No. 3" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The present invention will be further explained below in conjunction with specific embodiments.

[0063] Example 1

[0064] See also Figure 1 The present invention provides an embodiment of a computer remote control method, comprising the following specific steps:

[0065] Step S1: Use public key infrastructure to authenticate the control device and the computer;

[0066] Step S2: The control device sends a connection request to the computer through the IoT platform. The computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel.

[0067] Step S3: The control device generates and sends a remote control instruction, encrypts the remote control instruction, scores the priority of the communication channel by delay, updates it in real time, and selects the communication channel with the highest priority for transmission;

[0068] Step S4: The computer receives the remote control instructions sent by the control device, decrypts and executes the corresponding instructions, and records the operation log of each remote control;

[0069] The control devices in step S1 include: a smart phone and a computer.

[0070] The specific steps of step S2 are:

[0071] Step S201: The control device generates a connection request. The specific format of the connection request is: ,in, Indicates a connection request. Indicates the unique identifier of the control device, Indicates the timestamp of the control device generating the connection request. Indicates the digital signature of the control device, , Represents the digital signature algorithm, Represents a hash function that generates a unique value of fixed length. Indicates the private key that controls the device;

[0072] Step S202: The control device sends the generated connection request to the computer via the Internet of Things platform;

[0073] Step S203: After receiving the connection request, the computer verifies the digital signature of the control device. The specific formula for verifying the digital signature is:

[0074] ,in, Represents the digital signature verification function, Represents the digital signature verification algorithm, Indicates the public key of the control device;

[0075] Step S204: The computer generates connection confirmation information and sends the connection confirmation information to the control device through the Internet of Things platform.

[0076] The specific format of the connection confirmation information in step S204 is: ,in, Indicates connection confirmation information. represents the shared session key, Indicates a message confirming the connection. , Indicates the encryption algorithm, Represents the computer's private key.

[0077] The specific steps of step S3 are:

[0078] Step S301: The control device sends a remote control instruction, encrypts the remote control instruction, and obtains the encrypted remote control instruction;

[0079] Step S302: using a secure transmission strategy to compensate for delays in wireless communications and select an optimal communication channel;

[0080] Step S303: Transmit the encrypted remote control instruction to the computer via the optimal communication channel.

[0081] The specific steps of step S301 are:

[0082] Step S3011: Set the initial key to , using the initial key Generate n subkeys and set the subkey set to , , Indicates the nth subkey;

[0083] Step S3012: Divide the remote control instruction into M blocks, each block has a length of L, and define a shift operation for each block. The specific formula is:

[0084] ;

[0085] in, represents a bit shift operation, Represents the i-th block of remote control instructions, represents the e-th subkey, Exclusive OR operation is a bitwise operator that compares each bit of two binary numbers. If the two bits are different, the result is 1, and if they are the same, the result is 0. Indicates performing an XOR operation on the i-th block of remote control instructions and the e-th subkey. It represents the left shift operation, which is a bit shift operator that moves each bit of the binary number to the left by the specified number of bits. The left shift operation is equivalent to multiplying by the specified power of 2. The result is shifted to the left The result is the result bit modulo L, Indicates the modulo operation, which is an arithmetic operator that represents the remainder operation. The result is modulo L, and the result is a value between 0 and L-1;

[0086] Step S3013: Encrypt the remote control instruction. The specific encryption formula is:

[0087] ;

[0088] in, represents the encrypted remote control instruction block i;

[0089] Step S3014: Encrypt the M blocks of remote control instructions to complete the encryption operation of the remote control instructions.

[0090] The specific steps of step S302 are:

[0091] Step S3021: Obtain the delay of each communication channel in wireless communication and compensate for the delay in wireless communication. The specific formula for delay compensation is:

[0092] ;

[0093] in, represents the delay of the jth communication channel after compensation, represents the delay of the jth communication channel, Delay compensation coefficient, used to adjust the deviation between actual delay and expected delay. It represents the expected value of the delay of all communication channels in wireless communication and is used to standardize the delay of different channels.

[0094] In this embodiment, by adjusting The system delay can be flexibly controlled to keep the actual delay within a stable range, thereby reducing the impact of sudden delays on communications;

[0095] The expected value of the delay of all communication channels in wireless communication The specific formula is: , where N represents the total number of communication channels in wireless communication;

[0096] Step S3022: Establish a comprehensive priority scoring model for the communication channel. The specific formula of the comprehensive priority scoring model for the communication channel is:

[0097] ;

[0098] in, represents the comprehensive priority scoring model of the communication channel, that is, the comprehensive priority score of the communication channel at time q, represents the state at time q, which includes channel characteristics such as signal-to-noise ratio (SNR), current delay, bandwidth, and bit error rate. E represents the expected function. Represents a function that evaluates a function parameter. is the reward function, which represents the reward at time p. Represents the discount factor, the value range is [0, 1], q represents the current time, T represents the final time, Represents a strategy;

[0099] Discount Factor Used to weigh the value of future rewards, that is, to calculate future rewards in a time-decaying manner. Value means more emphasis on current rewards, while higher Value focuses more on future rewards;

[0100] Strategy For each state Decide what action to take and find a strategy , so that from the state The expected value of the cumulative reward at the beginning is the largest, and the strategy with the largest expected value That is the optimal communication channel;

[0101] Reward Function The specific formula is:

[0102] ;

[0103] in, 、 and represents the weight coefficient, represents the signal-to-noise ratio at time p, represents the time delay at time p, represents the channel bandwidth at time p;

[0104] 、 and Obtained by researchers in this field through extensive experiments, it is used to balance the contribution of different factors to rewards;

[0105] Step S3023: Based on the dynamic changes in the wireless environment, the comprehensive priority score of the communication channel is updated in real time. The specific formula is:

[0106] ;

[0107] in, represents the comprehensive priority score of the jth communication channel after update, Represents the update coefficient, between 0 and 1, used to adjust the ratio of new and old scores. represents the comprehensive priority score of the jth communication channel, represents the comprehensive priority score of the jth communication channel in the previous cycle;

[0108] During the transmission process, including the transmission cycle, the channel priority score is recalculated and the optimal channel is selected according to each cycle;

[0109] Step S3024: Obtain the optimal communication channel based on the comprehensive priority scores of the communication channels.

[0110] The specific steps of decryption in step S4 are:

[0111] Step S401: define a dynamic reverse shift operation for each remote control instruction. The specific formula is:

[0112] ;

[0113] in, represents a dynamic inverse shift operation, Indicates right shift operation;

[0114] Step S402: decrypt the remote control command. The specific decryption formula is:

[0115] .

[0116] Example 2

[0117] See also Figure 2, another embodiment provided by the present invention: a computer remote control system, comprising: a registration and authentication module, a connection establishment module, a remote control instruction transmission module and a remote control instruction receiving module;

[0118] The registration and authentication module uses a public key infrastructure to perform device authentication on the control device and the computer;

[0119] The connection establishment module is used to control the device to send a connection request to the computer through the Internet of Things platform, and the computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel;

[0120] The remote control instruction transmission module is used to control the device to generate and send remote control instructions, encrypt the remote control instructions, score the priority of the communication channel by delay, update it in real time, and select the communication channel with the highest priority for transmission;

[0121] The remote control instruction receiving module is used to receive the remote control instructions sent by the control device, decrypt and execute the corresponding instructions, and record the operation log of each remote control.

[0122] The remote control instruction transmission module includes a remote control instruction encryption unit and a remote control instruction transmission unit;

[0123] The remote control instruction encryption unit is used to encrypt the remote control instruction sent by the control device;

[0124] The remote control instruction transmission unit is used to transmit the encrypted remote control instruction to the computer through the optimal communication channel.

[0125] In addition, the parts of the above technical solutions provided in the embodiments of the present application that are consistent with the implementation principles of the corresponding technical solutions in the prior art are not described in detail to avoid excessive redundancy.

[0126] The above-described specific embodiments further illustrate the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A computer remote control method, characterized in that: include: Device authentication for control devices and computers using public key infrastructure; The control device sends a connection request to the computer through the IoT platform. The computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel. The control device generates and sends remote control commands, encrypts the remote control commands, scores the priority of the communication channels by delay, updates them in real time, and selects the communication channel with the highest priority for transmission; The computer receives the remote control instructions sent by the control device, decrypts and executes the corresponding instructions, and records the operation log of each remote control.

2. A computer remote control method according to claim 1, characterized in that: The control device generates and sends remote control instructions, encrypts the remote control instructions, scores the priorities of communication channels by delay, updates them in real time, and selects the communication channel with the highest priority for transmission, including: The control device sends a remote control instruction, encrypts the remote control instruction, and obtains the encrypted remote control instruction; Using secure transmission strategies to compensate for delays in wireless communications and select optimal communication channels; The encrypted remote control instructions are transmitted to the computer through the optimal communication channel.

3. A computer remote control method according to claim 2, characterized in that: The method of utilizing a secure transmission strategy to compensate for time delays in wireless communications and selecting an optimal communication channel includes: Obtaining the delay of each communication channel in wireless communication, and compensating the delay in wireless communication by using the original delay of the communication channel, the delay compensation coefficient, and the expected value of the delay of all communication channels in wireless communication; Establish a comprehensive priority scoring model for communication channels and score the comprehensive priority of communication channels at time p; According to the dynamic changes of the wireless environment, the comprehensive priority score of the communication channel is updated in real time using the update coefficient to obtain the real-time comprehensive priority score of the communication channel; The optimal communication channel is obtained based on the real-time comprehensive priority score of the communication channel.

4. A computer remote control method according to claim 2, characterized in that: The control device sends a remote control instruction, encrypts the remote control instruction, and obtains the encrypted remote control instruction, including: Set the initial key to , using the initial key Generate n subkeys and set the subkey set to , , Indicates the nth subkey; Divide the remote control instructions into M blocks, each block has a length of L, and define a left shift operation for each block; Encrypting the remote control command using a subkey in the subkey set K; The M blocks of remote control instructions are encrypted to complete the encryption operation of the remote control instructions.

5. A computer remote control method according to claim 1, characterized in that: The control device sends a connection request to the computer through the Internet of Things platform. The computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel, including: The control device generates a connection request. The specific format of the connection request is: ,in, Indicates a connection request. Indicates the unique identifier of the control device, Indicates the timestamp of the control device generating the connection request. Indicates the digital signature of the control device, , Represents the digital signature algorithm, represents a hash function, Indicates the private key that controls the device; The control device sends the generated connection request to the computer through the IoT platform; After receiving the connection request, the computer verifies the digital signature of the control device. The specific formula for verifying the digital signature is: ,in, Represents the digital signature verification function, Represents the digital signature verification algorithm, Indicates the public key of the control device; The computer generates connection confirmation information and sends the connection confirmation information to the control device through the Internet of Things platform.

6. A computer remote control method according to claim 5, characterized in that: The specific format of the connection confirmation information is: ,in, Indicates connection confirmation information. represents the shared session key, Indicates a message confirming the connection. , Indicates the encryption algorithm, Represents the computer's private key.

7. A computer remote control method according to claim 4, characterized in that: The computer receives the remote control instruction sent by the control device, decrypts it and executes the corresponding instruction, including: Define a dynamic reverse shift operation, i.e. right shift operation, for each remote control instruction; The remote control instruction is decrypted using a subkey in the subkey set K.

8. A computer remote control system, used to implement a computer remote control method according to any one of claims 1 to 7, characterized in that: include: Registration and authentication module, connection establishment module, remote control command transmission module and remote control command receiving module; The registration and authentication module uses a public key infrastructure to perform device authentication on the control device and the computer; The connection establishment module is used to control the device to send a connection request to the computer through the Internet of Things platform, and the computer verifies the digital signature of the control device and returns a confirmation message to establish a secure communication channel; The remote control instruction transmission module is used to control the device to generate and send remote control instructions, encrypt the remote control instructions, score the priority of the communication channel by delay, update it in real time, and select the communication channel with the highest priority for transmission; The remote control instruction receiving module is used to receive the remote control instructions sent by the control device, decrypt and execute the corresponding instructions, and record the operation log of each remote control.

9. A computer remote control system according to claim 8, characterized in that: The remote control instruction transmission module includes a remote control instruction encryption unit and a remote control instruction transmission unit; The remote control instruction encryption unit is used to encrypt the remote control instruction sent by the control device; The remote control instruction transmission unit is used to transmit the encrypted remote control instruction to the computer through the optimal communication channel.

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