US 8,942,378 B2 · Method and device for encrypting multicast service in passive optical network system

Abstract

A method for encrypting multicast services in a passive optical network system is provided in the present invention, and the method includes: an Optical Line Terminal (OLT) generating a public key, and using the public key to encrypt the multicast service data in a bearer channel and then transmitting the encrypted data, the multicast service data in the same one bearer channel being encrypted using the same public key; and said OLT sending the public key ,which is used to encrypt the multicast service data, via a management control channel to an Optical Network Unit (ONU) which is activated successfully and requests to receive said multicast service data. A device for encrypting multicast services in a passive optical network system is also provided in the present invention.

Claims13

Dependent claims

A method for encrypting multicast service in a passive optical network system, the method comprising:

an optical line terminal (OLT) generating a common key, and using the common key to encrypt multicast service data of all different multicast services in a same bearer channel and then sending encrypted data, wherein the multicast service data of all different multicast services in the same one bearer channel use a same common key to carry out encryption;
and
said OLT sending the common key applied in encrypting the multicast service data via a management control channel to an optical network unit (ONU) that is activated successfully and applies to receive said multicast service data.

A device for encrypting multicast service in a passive optical network system, and the device comprising a key generation unit, an encryption unit and a sending unit, wherein:

said key generation unit is configured to:
generate a common key;
said encryption unit is configured to:
encrypt multicast service data of all different multicast services born in a same one bearer channel with a same common key;
said sending unit is configured to:
send the encrypted multicast service data, and send the common key applied in encrypting the multicast service data via a management control channel to an optical network unit (ONU) that is activated successfully and applies to receive the multicast service data.

3 more elements

Dependencies are inferred from the claim text.

Method and device for encrypting multicast service in passive optical network system

Life of this patent

Method and device for encrypting multicast service in passive optical network system

Life of this patent

Abstract

Claims13