Communication System, Method for Generating Network Layer Address, and Related Device

A method implemented by a first node of a layer 2 network, and wherein the method comprises:

• obtaining well-known information of the layer 2 network;
• forming a well-known key based on the well-known information and a preset key derivation algorithm;
• obtaining a first media access control (MAC) address of the first node, and;
• forming a first random number;
• forming first plaintext data based on the first MAC address of the node and the first random number;
• encrypting the first plaintext data based on the well-known key and a preset symmetric encryption algorithm to obtain first encrypted data;
• and
• forming a first network layer address based on the first encrypted data.

An electronic device comprising:

• a memory configured to store instructions;
• and
• one or more processors coupled to the memory and configured to execute the instructions to cause the electronic device to:
• obtain well-known information of a layer 2 network;
• form a well-known key based on the well-known information and a preset key derivation algorithm;
• obtain a media access control (MAC) address of the electronic device;
• form a random number;
• form plaintext data based on the MAC address and the first random number;
• encrypt the plaintext data based on the well-known key and a preset symmetric encryption algorithm to obtain encrypted data;
• and
• form a network layer address based on the encrypted data.