Method for switching between encryption mode and decryption mode

Abstract

An embodiment of the invention discloses a method for switching between an encryption mode and a decryption mode. The method comprises the steps of transmitting first mode configuration information toan encryption end; wherein the first mode configuration information comprises the encryption mode, the decryption mode, a mode ECC verification value and a reserved expenditure position; after preparation finishing of a current path is configured from the encryption end, configuring an encryption/decryption mode according to the first mode configuration information; when a fact that an encryptioncode character which is inserted into the reserved expenditure position of a current OTN frame satisfies a preset condition is monitored, updating the first mode configuration information to second mode configuration information; and transmitting the second mode configuration information to the encryption end. The embodiment of the invention further discloses a device for switching between the encryption mode and the decryption mode.

Description

technical field [0001] The invention relates to the technical field of encryption and decryption of an optical transport network, in particular to a method and device for switching between encryption and decryption modes. Background technique [0002] With the development of the communications industry and the advent of the era of full-service operations, telecom operators will transform into comprehensive service providers integrating telecom services and information technology services; the richness of services brings higher demand for It is reflected in the requirements for the capability and performance of the transport network; Optical Transport Network (OTN) technology has gradually moved from behind the scenes to the front of the stage because it can meet the needs of various new services, and has become the main direction of the development of the transport network. [0003] OTN is based on wavelength division multiplexing technology and organizes the transport netwo...

AI Technical Summary

Problems solved by technology

[0003] OTN is based on wavelength division multiplexing technology and organizes the transport network of the network at the optical layer; in the data transmission process of the OTN network, in order to ensure the security of network data, it is necessary to encrypt the transmitted data, and then pass through the OTN network Decrypt the ciphertext to obtain the plaintext; the existing technology usually uses a single mode to encrypt and decrypt the data during the data transmission process of the OTN network, which will be easily cracked and the security of data transmission is low

Images