公开(公告)号：US20170134369A1

公开(公告)日：2017-05-11

申请号：US15348480

申请日：2016-11-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Muhammad BILAL ,  Shin-Gak KANG ,  Sung-Hei KIM ,  Juyoung PARK

IPC: H04L29/06

CPC classification number: H04L63/0807 ,  H04L9/0833 ,  H04L9/14 ,  H04L63/0428 ,  H04L63/068 ,  H04L2209/38

Abstract: Disclosed herein are a method and apparatus for time-assisted authentication. A main authentication entity may generate a group of communication entities. In keying protocol a key distributor, i-e main authentication entity, controls the key generation arguments and time factor; other member of the group independently generate the time-based keys using the key generation arguments. Respective keys in the chain of keys may be valid for time intervals predefined for respective keys. A ticket is issued to the valid customer node during initial authentication process, which is further used for re-authentication of customer node with other service providing entities and customer to customer node mutual authentication. A ticket verifier may authenticate a customer node by decrypting the ticket using time based keys.