Title:
Ｄｉａｍｅｔｅｒエッジエージェントを利用して下りローミング加入者のために時間距離セキュリティ対策を行うための方法、システム、およびコンピュータ読み取り可能な媒体
Document Type and Number:
Japanese Patent JP7234342
Kind Code:
B2
Abstract:
A method includes receiving an ingress Diameter message related to a mobile subscriber from a MME located in a non-home network, sending a RIR message containing a mobile subscriber identifier to a HSS in a home network of the mobile subscriber, receiving identification information identifying a MME in the home network that conducted a most recent attachment of the mobile subscriber, utilizing the identification information to send an IDR message containing the mobile subscriber identifier to the identified MME, receiving an IDA message containing attachment timestamp data corresponding to the most recent attachment of the mobile subscriber in the home network, determining a transit time using the UE attachment timestamp data and timestamp information corresponding to the ingress Diameter message, and analyzing the transit time to determine if the ingress Diameter message is to be designated as a suspicious ingress message.
Inventors:
Mahalank, Shaki Kiran Balachandra
Carturi, Shridal
Carturi, Shridal
Application Number:
JP2021506739A
Publication Date:
March 07, 2023
Filing Date:
July 17, 2019
Export Citation:
Assignee:
Oracle International Corporation
International Classes:
H04W12/61; H04W12/08; H04W12/121; H04W60/00; H04W88/14
Domestic Patent References:
| JP200092567A |
Foreign References:
| US20180167906 | ||||
| CN107800664A | ||||
| US20190200232 | ||||
| WO2014160935A2 | ||||
| WO1998033340A2 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office