Encryption communication method and device
A communication method and technology requiring encryption, applied in the field of communication, can solve the problems of low key update efficiency, achieve the effects of improving key update efficiency, reducing communication costs, and simplifying key update steps
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[0027] The first embodiment of the present invention is as follows:
[0028] Please refer to figure 1 with figure 2 In the ATM-PON communication system, the optical line terminal sends ATM cells to the optical network unit on the communication network by broadcast to carry relevant information. In order to ensure the security of the transmitted information, the link layer needs to be encrypted, so An encrypted communication device is installed at the optical line terminal and the optical network unit to support encrypted communication.
[0029] The encrypted communication device includes two parts: a sending end device and a receiving end device. The sending end device is located at the optical line terminal, and the receiving end device is located in the optical network unit. The sending end device includes a new key requester, a new key storage group, and an encrypted secret. Key storage, encryption key update decision maker and encryptor. The receiving end device includes a ne...
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