Article
Trusted Cameras on Mobile Devices Based on SRAM Physically Unclonable Functions
Author/s | Arjona, Rosario
Prada Delgado, Miguel Ángel Arcenegui Almenara, Javier Baturone Castillo, María Iluminada |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Publication Date | 2018 |
Deposit Date | 2018-11-13 |
Published in |
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Abstract | Nowadays, there is an increasing number of cameras placed on mobile devices connected to the Internet. Since these cameras acquire and process sensitive and vulnerable data in applications such as surveillance or monitoring, ... Nowadays, there is an increasing number of cameras placed on mobile devices connected to the Internet. Since these cameras acquire and process sensitive and vulnerable data in applications such as surveillance or monitoring, security is essential to avoid cyberattacks. However, cameras on mobile devices have constraints in size, computation and power consumption, so that lightweight security techniques should be considered. Camera identification techniques guarantee the origin of the data. Among the camera identification techniques, Physically Unclonable Functions (PUFs) allow generating unique, distinctive and unpredictable identifiers from the hardware of a device. PUFs are also very suitable to obfuscate secret keys (by binding them to the hardware of the device) and generate random sequences (employed as nonces). In this work, we propose a trusted camera based on PUFs and standard cryptographic algorithms. In addition, a protocol is proposed to protect the communication with the trusted camera, which satisfies authentication, confidentiality, integrity and freshness in the data communication. This is particularly interesting to carry out camera control actions and firmware updates. PUFs from Static Random Access Memories (SRAMs) are selected because cameras typically include SRAMs in its hardware. Therefore, additional hardware is not required and security techniques can be implemented at low cost. Experimental results are shown to prove how the proposed solution can be implemented with the SRAM of commercial Bluetooth Low Energy (BLE) chips included in the communication module of the camera. A proof of concept shows that the proposed solution can be implemented in low-cost cameras. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | TEC2014-57971-R
TEC2017-83557-R |
Citation | Arjona, R., Prada Delgado, M.Á., Arcenegui Almenara, J. y Baturone Castillo, M.I. (2018). Trusted Cameras on Mobile Devices Based on SRAM Physically Unclonable Functions. Sensors, 18 (10), 1-21. https://doi.org/10.3390/s18103352. |
Files | Size | Format | View | Description |
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pubsensors-18-03352.pdf | 4.430Mb | [PDF] | View/ | |
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