Encryption key information distribution method and related device
A technology of information distribution and key, which is applied in the field of information security and can solve the problems of low security of transmission key information and low flexibility of M2M systems
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Embodiment 1
[0033] Embodiment 1 of the present invention proposes a schematic diagram of the network architecture of a key information distribution method, the structure of which is as follows figure 2 As shown, it mainly includes the M2M platform, the identity management server on the network side, the M2M terminal and the user identity module in the M2M terminal.
[0034] Among them, the M2M platform is mainly used to send a key request to the identity management server on the network side after receiving the registration request sent by the M2M terminal, and receive a key response message sent by the identity management server. The key response message carries security Protect the key and random key generation parameters, use the security protection key to securely process the key information to be distributed to the M2M terminal, and send the processed key information and the above key generation parameters to the M2M terminal;
[0035] The identity management server on the network s...
Embodiment 2
[0040] Based on the network architecture proposed in Embodiment 1 of the present invention, Embodiment 2 of the present invention proposes a method for distributing key information, such as image 3 As shown, the specific process is as follows:
[0041] Step 31: After receiving the registration request sent by the M2M terminal, the M2M platform sends a key request to the identity management server on the network side.
[0042] When the M2M platform receives the registration request sent by the M2M terminal, it needs to issue the access password to the M2M terminal. If the M2M terminal supports and enables the data encryption function, the M2M platform also needs to issue the basic key to the M2M terminal. M2M terminal.
[0043] Embodiment 2 of the present invention proposes that the operator adds a key generation mechanism for generating security protection keys and security protection verification keys in the M2M system and for security protection of key information when dis...
Embodiment 3
[0078] Such as Figure 4 As shown, it is a schematic diagram of the specific implementation flow of the key information distribution method proposed in Embodiment 3 of the present invention when the execution subject of the security verification process is the user identity module, and the specific processing flow is as follows:
[0079] Step 41, the M2M terminal initiates a registration request to the M2M platform;
[0080]Step 42, the M2M platform sends a key request to the HLR / HSS, requesting the HLR / HSS to generate a security protection key (encryption key and integrity protection key) for protecting the key information (access password and basic key). key), the key request carries the identity of the (U)SIM card in the M2M terminal, and the SIM card or USIM card can be called a (U)SIM card;
[0081] Step 43: The HLR / HSS retrieves the subscription information of the M2M terminal according to the identity of the (U)SIM card to obtain the root key assigned by the operator w...
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