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Method and system for gigabit-capable passive optical network (GPON) uplink advanced encryption standard (AES) encryption key updating

A key update and key technology, which is applied in the field of communication, can solve the problem of low security and achieve the effect of ensuring security, simple update process, and seamless switching

Inactive Publication Date: 2013-06-19
ZTE CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a GPON uplink AES encrypted key update method and system to improve the low security of the existing AES encryption method

Method used

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  • Method and system for gigabit-capable passive optical network (GPON) uplink advanced encryption standard (AES) encryption key updating
  • Method and system for gigabit-capable passive optical network (GPON) uplink advanced encryption standard (AES) encryption key updating
  • Method and system for gigabit-capable passive optical network (GPON) uplink advanced encryption standard (AES) encryption key updating

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0022] like figure 2 As shown, is the flow chart of the preferred embodiment of the OLT side in the key update method for GPON uplink AES encryption of the present invention, and this embodiment includes the following steps:

[0023] Step S01: send the key value and update time of the uplink AES encryption to the ONU;

[0024] In this step, the OLT may send the above key value and update time to the ONU through a GEM (Generic Encapsulation Method) frame or a PLOAM (Physical Layer Operations, Administration and Maintenance) message. If...

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Abstract

The invention discloses a method and a system for gigabit-capable passive optical network (GPON) uplink advanced encryption standard (AES) encryption key updating. The method includes the steps: an optical line terminal (OLT) sends uplink AES encryption key values and updating time to an optical network unit (ONU); and when the updating time is up, the OLT and the ONU update local key values. The system comprises the OLT and the ONU. The method and the system for the GPON uplink AES encryption key updating are simple in updating process and fast in updating speed, and guarantee safety of the key values and the updating time.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method and a system for updating a key for GPON (Gigabit-Capable PON) upstream AES (Advanced Encryption Standard, Advanced Encryption Standard) encryption. Background technique [0002] FTTH (Fiber To The Home, Fiber To The Home) is the ultimate goal of fiber access, and it is the mainstream mode of GPON large-scale commercial use by international developed operators. The network structure of GPON is as follows: figure 1 As shown, it is mainly composed of OLT (optical line terminal), ODN (optical distribution network) and ONU / ONT (optical subscriber unit / optical subscriber terminal). Among them, AF is an adaptation function block, which can be integrated in the ONU; NE is Network equipment, WDM is an optical wavelength division multiplexing module, UNI is a user network interface, SNI is a service network interface, S and R are nodes, S refers to the connection point between the O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32
Inventor 熊良芳
Owner ZTE CORP
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