The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Mar. 27, 2020
Korea Internet & Security Agency, Jeollanam-do, KR;
Seong Min Park, Jeollanam-do, KR;
Young Kwon Park, Jeollanam-do, KR;
Bo Min Choi, Jeollanam-do, KR;
Eun Hye Ko, Jeollanam-do, KR;
Tae Eun Kim, Jeollanam-do, KR;
Jin Hyun Cho, Jeollanam-do, KR;
Do Won Kim, Jeollanam-do, KR;
Hyung Jin Cho, Jeollanam-do, KR;
Hwan Kuk Kim, Jeollanam-do, KR;
KOREA INTERNET & SECURITY AGENCY, Jeollanam-Do, KR;
Abstract
Provided are methods of detecting a Diameter spoofing attack. According to an embodiment, the method comprises, obtaining a normal International Mobile Subscriber Identity (IMSI) from a packet of a Diameter S6a protocol transmitted from a Mobile Management Entity (MME) to a Home Subscriber Server (HSS) of a home network, adding a record comprising the normal IMSI to a session table, obtaining an Insert Subscriber Data Request (IDR) message of the Diameter S6a protocol and determining a category of the IDR message.