Data sending method and device and data receiving method and device
A technology of a data sending method and a data receiving method, which is applied in the field of data communication and can solve the problem of low security of maintenance signaling information, etc.
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Embodiment 1
[0100] see figure 1 , figure 1 It is a flow chart of a data sending method disclosed in the embodiment of this application. In Embodiment 1, the method is applied to decentralized network nodes, including:
[0101] S101. Obtain maintenance signaling information to be sent;
[0102] S102. Use a symmetric encryption algorithm to encrypt the maintenance signaling information to obtain an encrypted data packet;
[0103] S103. Send the encrypted data packet to another decentralized network node in the same network as the decentralized network node.
[0104] In this embodiment, using a symmetric encryption algorithm to encrypt the maintenance signaling information to obtain an encrypted data packet includes: using a CTR-AES192 streaming symmetric encryption algorithm to encrypt the maintenance signaling information to obtain an encrypted data packet; wherein, the encrypted data packet The components include: header character string, metadata ciphertext of maintenance signaling i...
Embodiment 2
[0136] see Figure 5 , Figure 5 It is a flow chart of a data receiving method disclosed in the embodiment of this application. In Embodiment 2, the method is applied to decentralized network nodes, including:
[0137] S501. Receive an encrypted data packet, which is obtained by encrypting maintenance signaling information using a symmetric encryption algorithm; the encrypted data packet is sent by another decentralized network node in the same network as the decentralized network node;
[0138] S502. Determine whether the size of the encrypted data packet exceeds a preset threshold; if yes, execute S503; if not, execute S504;
[0139] S503. Decrypt the encrypted data packet by using a decryption algorithm corresponding to the symmetric encryption algorithm to obtain maintenance signaling information;
[0140] S504. Discard the encrypted data packet.
[0141] In this embodiment, the decryption algorithm corresponding to the symmetric encryption algorithm is used to decrypt...
Embodiment 3
[0173] A data sending device provided by an embodiment of the present application is introduced below, and a data sending device described below and a data sending method described above may refer to each other.
[0174] see Figure 9 , Figure 9 It is a schematic diagram of a data sending device disclosed in the embodiment of this application. In the third embodiment, the device is applied to decentralized network nodes, including:
[0175] An acquisition module 901, configured to acquire maintenance signaling information to be sent;
[0176] An encryption module 902, configured to encrypt maintenance signaling information using a symmetric encryption algorithm to obtain an encrypted data packet;
[0177] The sending module 903 is configured to send the encrypted data packet to another decentralized network node in the same network as the decentralized network node.
[0178] In a specific implementation manner, the encryption module is specifically used for:
[0179] Use...
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