Content for  TR 33.969  Word version:  17.1.0

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1  Scopep. 8

The present document studies security features and mechanisms for protection against false Base Stations broadcasting False Warning Notifications.
The default terminal behaviour is to accept all Warning Notifications even if their authenticity is unknown (i.e. no security protection). The default terminal behaviour is therefore open to the presentation of false Warning Notifications issued by false BSs even in countries without a Public Warning System (PWS) deployed.
Examples of false BS risks include, but are not limited to:
  • False Warning Notifications to induce panic;
  • Abuse of warning system broadcast channel to send advertising / spam.

2  Referencesp. 9

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
TR 21.905: "Vocabulary for 3GPP Specifications".
TS 22.268: "Public Warning System (PWS) requirements".
TS 23.041: "Technical realization of Cell Broadcast Service (CBS)".
TS 48.049: "Base Station Controller - Cell Broadcast Centre (BSC-CBC) interface specification; Cell Broadcast Service Protocol (CBSP)".
TS 25.419: "UTRAN Iu-BC interface: Service Area Broadcast Protocol (SABP)".
TS 23.251: "Network sharing; Architecture and functional description".
TR 33.859: "Study on the Introduction of Key Hierarchy in Universal Terrestrial Radio Access Network (UTRAN)".
TS 33.102: "3G security; Security architecture".
TS 35.206: "3G Security; Specification of the MILENAGE Algorithm Set: An example algorithm set for the 3GPP authentication and key generation functions f1, f1*, f2, f3, f4, f5 and f5*; Document 2: Algorithm specification".
FIPS 186-3: "Digital Signature Standard (DSS)".
SP 800-57 Part 1: "Recommendation for Key Management - Part 1: General (Revision 3)".
SP 800-56A: "Recommendation for Pair-Wise Key Establishment Schemes Using Discrete Logarithm Cryptography".
M. Bellare and P. Rogaway, "Random Oracles are Practical: A Paradigm for Designing Efficient Protocols", ACM CCS 1993.
V. Shoup, "Lower Bounds for Discrete Logarithms and Related Problems", EUROCRYPT 1997.
S. Vaudenay, "The Security of DSA and ECDSA", PKC 2003.
P. Paillier and D. Vergnaud, "Discrete-Log-Based Signature May Not Be Equivalent to Discrete Log", Asiacrypt 2005.
D. Brown, "The Exact Security of ECDSA". Technical Report CORR 2000-34, Certicom Research, 2000.
D. Brown, R. Gallant, and S. Vanstone, "Provably secure implicit certificate schemes", Financial Cryptography 2001.
D. Brown and D. Johnson, "Formal Security Proofs for a Signature Scheme with Partial Message Recovery", CT-RSA 2001.
D. Brown, M. Campagna, and S. Vanstone, "Security of ECQV-Certified ECDSA Against Passive Adversaries", IACR eprint Archive,
TS 31.115: "Secured packet structure for (Universal) Subscriber Identity Module (U)SIM Toolkit applications".
TS 31.102: "Characteristics of the Universal Subscriber Identity Module (USIM) application".
TS 31.116: "Remote APDU Structure for (U)SIM Toolkit applications".
TS 31.111: "Universal Subscriber Identity Module (USIM) Application Toolkit (USAT)".
TS 29.168: "Cell Broadcast Centre interfaces with the Evolved Packet Core; Stage 3".
TS 33.220: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA)".
TS 33.223: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA) Push function".
TS 33.224: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA) push layer".
TS 23.090: "Unstructured Supplementary Service Data (USSD); Stage 2".
TS 23.202: "Circuit switched data bearer services".
TS 33.203: "3G security; Access security for IP-based services".
TS 33.234: "3G security; Wireless Local Area Network (WLAN) interworking security".
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3".
Cornell University, "GPS receivers can be 'spoofed,' say researchers ",
TS 33.402: "3GPP System Architecture Evolution (SAE); Security aspects of non-3GPP accesses".
TS 43.318: "Generic Access Network (GAN); Stage 2".
TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2".
TS 23.234: "3GPP system to Wireless Local Area Network (WLAN) interworking; System description".
TS 23.402: "Architecture enhancements for non-3GPP accesses".
TS 33.310: "Network Domain Security (NDS); Authentication Framework (AF)".
TS 44.060: "General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control / Medium Access Control (RLC/MAC) protocol".

3  Abbreviationsp. 10

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
Base Station
Certificate Authority
Cell Broadcast Centre
Cell Broadcast Entity
Commercial Mobile Alert System
Digital Signature Algorithm
ECRYPT Benchmarking of Asymmetric Systems
Elliptic Curve DSA
Elliptic Curve Qu-Vanstone
European Emergency Alert System
Gateway Core Network
Earthquake and Tsunami Warning System
Korean Public Alert System
Multi-Operator Core Network
Network Security Use Counter
Network Domain Security
Public Warning System
Reduced Instruction Set Computing
Transport Layer Security

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