Signal transmission method between communication terminals

Abstract

The invention discloses a signal transmission method between communication terminals, which comprises the following steps: S1, a communication terminal A encrypts a signal to be sent according to a local encryption rule, and transmits encrypted data obtained after encryption to an edge server; s2, dividing the encrypted data into a plurality of data blocks by the edge server, then numbering and storing each data block, generating an information packet and a download permission proof, and feeding back the information packet and the download permission proof to the communication terminal A; s3, the communication terminal A transmits the local encryption rule, the information packet fed back by the edge server and the download authority certificate to the communication terminal B; s4, the communication terminal B shows a download permission proof to the edge server, downloads the data blocks from the edge server and reforms encrypted data; and S5, the communication terminal B decrypts the recombined encrypted data and restores the to-be-sent signal to complete signal transmission. According to the invention, data partitioning, storage and downloading are carried out on the edge server, so that signal transmission is completed, and the security of signal transmission is improved.

Description

Technical Field

[0001] The present invention relates to the field of signal transmission, and in particular to a signal transmission method between communication terminals. Background Art

[0002] With the development of communication technology, signal transmission equipment / terminals are increasingly appearing in social work and life. For some data with low confidentiality requirements, communication terminals can be directly transmitted, but for some data with strong confidentiality requirements, how to directly transmit data between terminals is easy to be intercepted, resulting in data leakage and certain security risks. Therefore, data encryption has become an issue that needs to be considered for the communication of confidential data between terminals, but the existing encryption methods or encryption rules may be cracked during interception, so the security is still insufficient. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for signal transmission between communication terminals. When signal transmission is performed between communication terminals, data is segmented, stored and downloaded on an edge server to complete signal transmission, thereby improving the security of signal transmission.

[0004] The objective of the present invention is achieved through the following technical solution: a signal transmission method between communication terminals, characterized in that: the communication terminal performs signal transmission based on an edge server, and the signal transmission method comprises the following steps: S1. When communication terminal A needs to send a signal to communication terminal B, communication terminal A first encrypts the signal to be sent according to the local encryption rule, and then transmits the encrypted data to the edge server; S2. After receiving the encrypted data from communication terminal A, the edge server divides the encrypted data into multiple data blocks, then numbers and saves each data block, packages the data block number and the corresponding storage address into an information package, generates a download authority certificate, and feeds the information package together with the download authority certificate back to communication terminal A; S3. Communication terminal A transmits the local encryption rules, the information packet fed back by the edge server, and the download authority certificate to communication terminal B; S4. Communication terminal B presents download authority certificate to edge server according to information packet from communication terminal A, downloads data block from edge server and reorganizes into encrypted data; S5. Communication terminal B decrypts the reorganized encrypted data according to the local encryption rules from communication terminal A, restores the signal to be sent, and completes the signal transmission.

[0005] The beneficial effects of the present invention are as follows: when signal transmission is performed between communication terminals, the edge server is used so that the communication terminals do not need to directly transmit the data to be sent or the encrypted data. The communication terminal A that sends the signal transmits the signal to be sent to the edge server for block division, numbering, and storage, and generates an information package (data block number and corresponding storage address) and a download authority certificate to feedback to the communication terminal A. The communication terminal A only needs to transmit the local encryption rules, the information package fed back by the edge server, and the download authority certificate to the communication terminal B, and the communication terminal B can directly download the reorganized data and decrypt it to realize signal restoration. Since the communication terminals A and B do not need to directly transmit the signal to be sent and the encrypted data, the security of signal transmission is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0007] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0008] like Figure 1 As shown, a signal transmission method between communication terminals, the communication terminals perform signal transmission based on an edge server, and the signal transmission method includes the following steps: S1. When communication terminal A needs to send a signal to communication terminal B, communication terminal A first encrypts the signal to be sent according to the local encryption rule, and then transmits the encrypted data to the edge server; S2. After receiving the encrypted data from communication terminal A, the edge server divides the encrypted data into multiple data blocks, then numbers and saves each data block, packages the data block number and the corresponding storage address into an information package, generates a download authority certificate, and feeds the information package together with the download authority certificate back to communication terminal A; The step S2 comprises: S201. After receiving the encrypted data from the communication terminal A, the edge server divides the encrypted data into a plurality of data blocks and numbers the data blocks in the order in which they appear in the encrypted data; S202. Divide the storage area of ​​the edge server into multiple sub-storage areas, and then randomly select a sub-storage area for each numbered data block for storage; and temporarily save the storage address corresponding to each numbered data block; S203. The edge server packages the data block number and the corresponding storage address into an information package, generates a download permission certificate, and feeds it back to communication terminal A together with the information package and the download permission certificate; then deletes the storage address corresponding to the data block number and the packaged information package.

[0009] The download permission certificate is a verification code that is a mixture of numbers, letters and symbols. When downloading data from the edge server, it is first necessary to verify the verification code on the edge server, and the download is allowed only after the verification is passed.

[0010] S3. Communication terminal A transmits the local encryption rules, the information packet fed back by the edge server, and the download authority certificate to communication terminal B; S4. Communication terminal B presents download authority certificate to edge server according to information packet from communication terminal A, downloads data block from edge server and reorganizes into encrypted data; The step S4 comprises: S401. After receiving the information packet and download authority certificate from communication terminal A, communication terminal B first verifies the verification code on the edge server; S402. After communication terminal B passes the verification on the edge server, for each data block number in the data packet, the data block is downloaded in each storage sub-area of ​​the edge server according to the corresponding storage address; S403. Communication terminal B reorganizes the downloaded data blocks in the order of the data block numbers to obtain encrypted data S5. Communication terminal B decrypts the reorganized encrypted data according to the local encryption rules from communication terminal A, restores the signal to be sent, and completes the signal transmission.

[0011] When the communication terminals of the present invention transmit signals, the edge server is used so that the communication terminals do not need to directly transmit the data to be sent or the encrypted data. The communication terminal A that sends the signal transmits the signal to be sent to the edge server for block division, numbering, and storage, and generates an information package (data block number and corresponding storage address) and a download authority certificate to feedback to the communication terminal A. The communication terminal A only needs to transmit the local encryption rules, the information package fed back by the edge server, and the download authority certificate to the communication terminal B. The communication terminal B can directly download the reorganized data and decrypt it to realize signal restoration. Since the communication terminals A and B do not need to directly transmit the signal to be sent and the encrypted data, the security of the signal transmission is improved.

[0012] When storing data packets, the edge server uses random storage in each storage sub-interval, and after feeding back the information packet and download permission certificate to communication terminal A, the storage address corresponding to the data block number and the packaged information packet are deleted. Therefore, even if the edge server is attacked, the data will not be leaked. Communication terminal B can obtain the storage address corresponding to all data block numbers, which does not affect the normal download and storage of data.

[0013] The above is a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A signal transmission method between communication terminals, characterized in that: The communication terminal performs signal transmission based on the edge server, and the signal transmission method includes the following steps: S1. When communication terminal A needs to send a signal to communication terminal B, communication terminal A first encrypts the signal to be sent according to the local encryption rule, and then transmits the encrypted data to the edge server; S2. After receiving the encrypted data from communication terminal A, the edge server divides the encrypted data into multiple data blocks, then numbers and saves each data block, packages the data block number and the corresponding storage address into an information package, generates a download authority certificate, and feeds the information package together with the download authority certificate back to communication terminal A; S3. Communication terminal A transmits the local encryption rules, the information packet fed back by the edge server, and the download authority certificate to communication terminal B; S4. Communication terminal B presents download authority certificate to edge server according to information packet from communication terminal A, downloads data block from edge server and reorganizes into encrypted data; S5. Communication terminal B decrypts the reorganized encrypted data according to the local encryption rules from communication terminal A, restores the signal to be sent, and completes the signal transmission.

2. A signal transmission method between communication terminals according to claim 1, characterized in that: The step S2 comprises: S201. After receiving the encrypted data from the communication terminal A, the edge server divides the encrypted data into a plurality of data blocks and numbers the data blocks in the order in which they appear in the encrypted data; S202. Divide the storage area of ​​the edge server into multiple sub-storage areas, and then randomly select a sub-storage area for each numbered data block for storage; and temporarily save the storage address corresponding to each numbered data block; S203. The edge server packages the data block number and the corresponding storage address into an information package, generates a download permission certificate, and feeds it back to communication terminal A together with the information package and the download permission certificate; then deletes the storage address corresponding to the data block number and the packaged information package.

3. A signal transmission method between communication terminals according to claim 1, characterized in that: The step S4 includes: the download authority certificate is a verification code mixed with numbers, letters and symbols. When downloading data from the edge server, it is first necessary to verify the verification code on the edge server, and the download is allowed only after the verification is passed.

4. The signal transmission method between communication terminals according to claim 1, characterized in that: The step S4 comprises: S401. After receiving the information packet and download authority certificate from communication terminal A, communication terminal B first verifies the verification code on the edge server; S402. After communication terminal B passes the verification on the edge server, for each data block number in the data packet, the data block is downloaded in each storage sub-area of ​​the edge server according to the corresponding storage address; S403. Communication terminal B reorganizes the downloaded data blocks according to the order of the data block numbers to obtain encrypted data.

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