Communication method, device and system for IoT meter
A communication method and metering technology, which is applied in security devices, wireless communication, machine-to-machine/machine-type communication services, etc., can solve problems such as low security, and achieve the effect of alleviating low security and ensuring confidentiality
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Embodiment 1
[0074] Embodiments of the present invention provide a communication method for an IoT meter, such as figure 1 As shown, the method includes the following steps:
[0075] In step S101, a communication key is obtained, wherein the communication key is a communication password determined after key negotiation between the IoT meter and the service management organization.
[0076] Specifically, in the prior art, when IoT meters communicate with business management organizations, all meters use the same key for data encryption. This communication method has great potential security risks. Once the key is leaked, others will All communication data can be decrypted by using this key, and the data security of the IoT meter cannot be guaranteed. Therefore, in the present invention, before the IoT meter communicates with the business management agency, it is necessary to negotiate and confirm a communication after two-way identity authentication. password, and use this communication pa...
Embodiment 2
[0089] figure 2 is a flow chart of an optional communication method for an IoT meter according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:
[0090] In step S11, a communication key is obtained, wherein the communication key is a communication password determined after key negotiation between the IoT meter and the service management organization.
[0091] The acquisition of the communication key has been described in detail in the above-mentioned Embodiment 1, which is not repeated here, and the process of acquiring the communication key will be described in detail below.
[0092] Step S12, using the communication key to encrypt the first uplink data of the IoT meter to obtain the first uplink ciphertext, and sending the first uplink ciphertext to the service management organization, wherein the first uplink data includes: uplink service The sending time of data and uplink service data.
[0093] The sending...
Embodiment 3
[0131] Embodiments of the present invention provide a communication method for an IoT meter, such as image 3 As shown, the method includes the following steps:
[0132] Step S201, receiving the first uplink ciphertext sent by the IoT meter.
[0133] Step S202: Decrypt the first uplink ciphertext by using a communication key, where the communication key is a communication password determined after key negotiation between the IoT meter and the service management organization.
[0134] Specifically, when the business management agency conducts business communication with the IoT meter, it will first receive the first uplink ciphertext sent by the IoT meter, and then use the IoT meter to negotiate a key with the business management agency to determine the value. The communication password (communication key) decrypts the first uplink ciphertext to obtain service data carried by the first uplink ciphertext.
[0135] Step S203: Encrypt the first downlink data by using the communi...
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