Patent ID: 8948401
Filing Date: 2015-02-03
Classification: H04L,H04Q

Abstract:
1. A method in which an optical network terminal obtains a registration approval from an optical line terminal in a Gigabit passive optical network (GPON), comprising: at the optical network terminal, being assigned an optical line terminal (OLT) public key, by the optical line terminal, when the optical network terminal joins the GPON, the OLT public key corresponding to an optical line terminal (OLT) private key assigned to the optical line terminal; and at the optical network terminal, encrypting a header of a frame associated with registration of the optical network terminal, the header including a physical layer Operations, Administration and Maintenance (OAM) message, using the OLT public key, and obtaining the registration approval from the optical line terminal using the frame with the encrypted header; wherein the obtaining of the registration approval comprises: encrypting a physical layer OAM message included in a header of a frame associated with registration of a serial number of the optical network terminal using the OLT public key, transmitting the encrypted physical layer OAM message to the optical line terminal and obtaining registration for the serial number from the optical line terminal; and at the optical network terminal, generating an optical network terminal (ONT) public key and an ONT private key in response to the obtaining registration for the serial number and transmitting the ONT public key to the optical line terminal.