Accession Number:

ADA620385

Title:

Software-Defined Radio Global System for Mobile Communications Transmitter Development for Heterogeneous Network Vulnerability Testing

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

2013-12-01

Pagination or Media Count:

143.0

Abstract:

The conversion from homogeneous global system for mobile communications GSM networks to heterogeneous GSMuniversal mobile telecommunications system UMTS networks is rapidly expanding. Previous research identified vulnerabilities in the GSM network that were fixed in the UMTS standard however, the mobile device must successfully access the UMTS network to take advantage of security improvements. Therefore, a possible vulnerability not addressed in either the GSM or UMTS standards is the potential for a malicious entity to prevent a mobile device from handing over from a GSM to UMTS network, because the GSM network maintains the standalone dedicated control channel SDCCH uplink time slots. The process of testing this vulnerability requires the development of a device that monitors a GSM base transceiver station, identifies when a handover to UMTS message is sent, tracks the time slots of the SDCCH uplink, and transmits a GSM handover-failure message. In this thesis, we present an open-source coding scheme that utilizes parts of the OpenBTS source code to transmit a GSM handoverfailure message using the universal software radio peripheral. The method is validated through the collection of the GSM transmitter messages by Airprobe s GSM-receiver software.

Subject Categories:

  • Computer Programming and Software
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE