HANDLING IDENTIFIER VALIDATION

WIPO Patent Application WO/2019/137793

A1

A network function performs a method to identify an invalid subscription concealed identifier, SUCI. When the network function receives a message containing a SUCI, it determines a size of the SUCI contained in the received message, and also determines an expected size of the SUCI in the received message. The network function then determines whether the size of the SUCI contained in the received message satisfies a criterion associated with the expected size. If the size of the SUCI contained in the received message does not satisfy the criterion associated with the expected size, the network function determines that the SUCI in the received message is invalid, and it rejects the SUCI in the received message if it is determined to be invalid.

NAKARMI PRAJWOL (SE)
SAARINEN PASI (SE)

PCT/EP2018/086416

July 18, 2019

December 20, 2018

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ERICSSON TELEFON AB L M (SE)

H04W8/18; H04W8/20

US7096273B1

2006-08-22

"3 Generation Partnership Project; Technical Specification Group Services and System Aspects; Security Architecture and Procedures for 5G System (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 33.501, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG3, no. V0.6.0, 4 January 2018 (2018-01-04), pages 1 - 79, XP051392349
ERICSSON: "Clause 6.12.5 (SIDF - size of SUCI)", vol. SA WG3, no. Gothenburg; 20180122 - 20180126, 15 January 2018 (2018-01-15), XP051390755, Retrieved from the Internet [retrieved on 20180115]

ERICSSON (SE)

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