Listening to Tags: Uplink RFID Measurements With an Open-Source Software-Defined Radio Tool

2013 ◽  
Vol 62 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Danilo De Donno ◽  
Fabio Ricciato ◽  
Luciano Tarricone
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Software Defined Radio

scholarly journals Securing the wireless emergency alerts system

2021 ◽  
Vol 64 (10) ◽  
pp. 85-93
Author(s):  
Jihoon Lee ◽  
Gyuhong Lee ◽  
Jinsung Lee ◽  
Youngbin Im ◽  
Max Hollingsworth ◽  
...  
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Software Defined Radio ◽  
Severe Weather ◽  
Base Stations ◽  
The Public ◽  
Software Libraries ◽  
Amber Alerts ◽  
Almost All ◽  
To Receive

Modern cell phones are required to receive and display alerts via the Wireless Emergency Alert (WEA) program, under the mandate of the Warning, Alert, and Response Act of 2006. These alerts include AMBER alerts, severe weather alerts, and (unblockable) Presidential Alerts, intended to inform the public of imminent threats. Recently, a test Presidential Alert was sent to all capable phones in the U.S., prompting concerns about how the underlying WEA protocol could be misused or attacked. In this paper, we investigate the details of this system and develop and demonstrate the first practical spoofing attack on Presidential Alerts, using commercially available hardware and modified open source software. Our attack can be performed using a commercially available software-defined radio, and our modifications to the open source software libraries. We find that with only four malicious portable base stations of a single Watt of transmit power each, almost all of a 50,000-seat stadium can be attacked with a 90% success rate. The real impact of such an attack would, of course, depend on the density of cellphones in range; fake alerts in crowded cities or stadiums could potentially result in cascades of panic. Fixing this problem will require a large collaborative effort between carriers, government stakeholders, and cellphone manufacturers. To seed this effort, we also propose three mitigation solutions to address this threat.

scholarly journals SCATTER PHY: An Open Source Physical Layer for the DARPA Spectrum Collaboration Challenge

2019 ◽  
Author(s):  
Felipe Augusto Pereira de Figueiredo ◽  
Dragoslav Stojadinovic ◽  
Prasanthi Maddala ◽  
Ruben Mennes ◽  
Irfan Jabandžic ◽  
...  
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Spectral Efficiency ◽  
Software Defined Radio ◽  
High Performance ◽  
The United States ◽  
Physical Layer ◽  
Research Projects ◽  
Physical Interfaces ◽  
Wireless Spectrum

DARPA, the Defense Advanced Research Projects Agency from the United States, has started the Spectrum Collaboration Challenge with the aim to encourage research and development of coexistence and collaboration techniques of heterogeneous networks in the same wireless spectrum bands. Team SCATTER has been participating in the challenge since its beginning, back in 2016. SCATTER’s open-source software-defined physical layer (SCATTER PHY) has been developed as a standalone application, with the ability to communicate with higher layers of SCATTER’s system via ZeroMQ, and uses USRP X310 software-defined radio devices to send and receive wireless signals. SCATTER PHY relies on USRP’s ability to schedule timed commands, uses both physical interfaces of the radio devices, utilizes the radio’s internal FPGA board to implement custom high-performance filtering blocks in order to increase its spectral efficiency as well as enable reliable usage of neighboring spectrum bands. This paper describes the design and main features of SCATTER PHY and showcases the experiments performed to verify the achieved benefits.

Open source software-defined radio tools for education, research, and rapid prototyping

2012 ◽  
Vol 16 (1) ◽  
pp. 67-80
Author(s):  
Jason Snyder ◽  
Deepan Seeralan ◽  
Shereef Sayed ◽  
Jeffery Wilson ◽  
Carl B. Dietrich ◽  
...  
Keyword(s):  
Education Research ◽  
Rapid Prototyping ◽  
Open Source ◽  
Open Source Software ◽  
Software Defined Radio
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