Title:
COMMUNICATION TERMINAL, CORE NETWORK DEVICE, CORE NETWORK NODE, NETWORK NODE AND KEY DERIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/065897
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a communication terminal which is capable of preventing the lowering of a security level which occurs when multiple connections are established through a 3GPP access and a non-3GPP access. A communication terminal (10) according to the present disclosure is provided with: a communication unit (11) which communicates with a gateway device disposed in a previous stage of a core network device (20) through an untrusted non-3GPP access; and a key deriving unit (12) which derives, from a first security key, a second security key which is to be used for security-processing a message transmitted by using a prescribed protocol with the gateway device, the first security key being used for security-processing a message transmitted by using a prescribed protocol with the core network device (20).
Inventors:
ITO HIRONORI (JP)
LAKSHMINARAYANAN SIVAKAMY (IN)
PRASAD ANAND RAGHAWA (JP)
ARUMUGAM SIVABALAN (IN)
BASKARAN SHEEBA BACKIA MARY (IN)
LAKSHMINARAYANAN SIVAKAMY (IN)
PRASAD ANAND RAGHAWA (JP)
ARUMUGAM SIVABALAN (IN)
BASKARAN SHEEBA BACKIA MARY (IN)
Application Number:
PCT/JP2018/036074
Publication Date:
April 04, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04W12/04
Domestic Patent References:
| WO2017049461A1 | 2017-03-30 |
Foreign References:
| JP2017063422A | 2017-03-30 | |||
| JP2010536241A | 2010-11-25 | |||
| IN201711034337A |
Other References:
ERICSSON: "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects;Study on the security aspects of the next generation system (Release 14)", 3GPP TR 33.899 V1.2.0, 19 May 2017 (2017-05-19), pages 105 - 118, XP051310297
NEC: "pCR to TR 33.899: Consolidated Key Hierarchy for NextGen networks", 3GPP TSG SA WG3 #86 S3-170386, 10 February 2017 (2017-02-10), XP051217721
NEC: "Interim Agreement on inputs for key derivation", 3GPP TSG SA WG3 #88 S3-172047, 31 July 2017 (2017-07-31), XP051311152
See also references of EP 3691317A4
NEC: "pCR to TR 33.899: Consolidated Key Hierarchy for NextGen networks", 3GPP TSG SA WG3 #86 S3-170386, 10 February 2017 (2017-02-10), XP051217721
NEC: "Interim Agreement on inputs for key derivation", 3GPP TSG SA WG3 #88 S3-172047, 31 July 2017 (2017-07-31), XP051311152
See also references of EP 3691317A4
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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