Title:
DEVICE FOR TRANSMITTING KEY DATA TO SUBSCRIBER IN MULTICAST GROUP
Document Type and Number:
WIPO Patent Application WO/2020/242062
Kind Code:
A1
Abstract:
According to technology disclosed in the present application, the security of a multicast group can be enhanced by encrypting, by using a group key, first key data to nth key data used for encrypting first message data to nth message data (except that n is a natural number greater than or equal to 2), and then transmitting the first key data to nth key data to a subscriber in the multicast group. Also, as return address extraction information is included in key data and transmitted, the subscriber in the multicast group can use the return address extraction information to acquire, from the first message data to nth message data, a return address and an authentication key that correspond, and connect to a computing device by using the acquired return address and authentication key.
Inventors:
BANG SEONGCHEOL (KR)
CHA JAEWON (KR)
KWAK SEUNGCHUL (KR)
CHA JAEWON (KR)
KWAK SEUNGCHUL (KR)
Application Number:
PCT/KR2020/005351
Publication Date:
December 03, 2020
Filing Date:
April 23, 2020
Export Citation:
Assignee:
UNIONPLACE CO LTD (KR)
International Classes:
H04L9/08; H04L9/32; H04L12/18
Foreign References:
| KR20060064469A | 2006-06-13 | |||
| KR20080006621A | 2008-01-16 | |||
| KR101130001B1 | 2012-03-28 | |||
| KR20130030476A | 2013-03-27 | |||
| US9497171B2 | 2016-11-15 | |||
| KR102024062B1 | 2019-09-24 |
Attorney, Agent or Firm:
LEE, Changbuhm et al. (KR)
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