Communication method based on dynamic and customizable extlv message transmission protocol
A technology of message transmission and communication method, applied in the communication field of exTLV message transmission protocol, can solve problems such as bandwidth waste, data duplication, lack of security transmission mechanism, etc., to ensure integrity, prevent tampering, and reduce transmission data amount of effect
Active Publication Date: 2020-07-31
TIANJIN LIGHT IND VOCATION TECHN COLLEGE
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Problems solved by technology
[0004] The first method of message transmission: Both parties need to know the meaning of each content to be transmitted in advance, and need to know the composition format of the message during the development process, which is not universal, and requires secondary development for message interpretation;
[0005] The second method of message transmission: it is universal, and the meaning of the information format can be obtained according to the message name, and then the data value can be obtained from protobuf, but this method causes data duplication every time a message of the same format is transmitted, and the message name The length of the field is often longer than the length of the actually required data field protobuf, resulting in a reduction in transmission efficiency and a waste of bandwidth
At the same time, the protocol itself does not have a secure transmission mechanism
Method used
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Embodiment Construction
[0048] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0049] A communication method based on a dynamically customizable exTLV message transmission protocol, comprising the following steps:
[0050] Step 1. Use the secure connection handshake transmission method of the integrity verification KEY, and establish a secure connection between the client and the server by calculating the verification code through the KEY;
[0051] Such as figure 1 As shown, the step 1 includes the following steps:
[0052] (1) Establish a TCP connection between the client and the server;
[0053] (2) The server generates a key pair through an asymmetric encryption algorithm (RSA algorithm is used by default), and sends the asymmetric public key to the client;
[0054] (3) The client generates a random 32-bit string as the integrity verification KEY, encrypts the received asymmetric public key and sends it to the server; ...
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The invention relates to a communication method based on a dynamic self definable exTLV message transmission protocol. The method is technically characterized by comprising the following steps: 1, secure connection is built between a client and a server through a KEY calculation verification code method; 2, through defining a message format formed by four parts of a message text type, a message data byte length, a message data content and message inspection data for inspecting the above three kinds of data, a dynamic self definable exTLV message transmission protocol is built between the client and the server; and 3, standard library release is adopted, and an API function is called for realizing function calling on a transmitting packet and a receiving packet based on the dynamic self definable exTLV message transmission protocol. The transmission data can be effectively prevented from being tampered, the method has universality, and through a secure transmission mechanism and a protocol, the message can be transmitted securely, and the message format can be analyzed, and the meaning of each component is analyzed.
Description
technical field [0001] The invention belongs to the technical field of network transmission, in particular to a communication method based on a dynamically customizable exTLV message transmission protocol. Background technique [0002] In the current development of various applications or devices, when it comes to point-to-point message transmission, two message transmission methods are usually used. One is to use a completely independent message format for this application or device, which is generally aimed at its own information content. The characteristics of the independent design of a fixed format with certain rules for message transmission; the other is the use of basic TLV encoding, the TLV encoding is a kind of BER encoding, the full name is Type (type), Length (length), Value (value), on this basis, Google has extended the message name and protobuf data to strengthen the transmission capability. [0003] However, the above two message transmission methods have the...
Claims
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IPC IPC(8): H04L29/06H04L9/08
CPCH04L9/0825H04L9/0869H04L63/0442H04L63/062H04L63/123H04L69/03H04L69/06H04L69/163H04L69/26
Inventor 侯俊芳陆中威孙涛姚嵩丁玮
Owner TIANJIN LIGHT IND VOCATION TECHN COLLEGE