A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes

Security is essential in sensor nodes which acquire and transmit sensitive data. However, the constraints of processing, memory and power consumption are very high in these nodes. Cryptographic algorithms based on symmetric key are very suitable for them. The drawback is that secure storage of secre...

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Main Authors: Rosario Arjona, Miguel Ángel Prada-Delgado, Javier Arcenegui, Iluminada Baturone
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/18/8/2429
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author Rosario Arjona
Miguel Ángel Prada-Delgado
Javier Arcenegui
Iluminada Baturone
author_facet Rosario Arjona
Miguel Ángel Prada-Delgado
Javier Arcenegui
Iluminada Baturone
author_sort Rosario Arjona
collection DOAJ
description Security is essential in sensor nodes which acquire and transmit sensitive data. However, the constraints of processing, memory and power consumption are very high in these nodes. Cryptographic algorithms based on symmetric key are very suitable for them. The drawback is that secure storage of secret keys is required. In this work, a low-cost solution is presented to obfuscate secret keys with Physically Unclonable Functions (PUFs), which exploit the hardware identity of the node. In addition, a lightweight fingerprint recognition solution is proposed, which can be implemented in low-cost sensor nodes. Since biometric data of individuals are sensitive, they are also obfuscated with PUFs. Both solutions allow authenticating the origin of the sensed data with a proposed dual-factor authentication protocol. One factor is the unique physical identity of the trusted sensor node that measures them. The other factor is the physical presence of the legitimate individual in charge of authorizing their transmission. Experimental results are included to prove how the proposed PUF-based solution can be implemented with the SRAMs of commercial Bluetooth Low Energy (BLE) chips which belong to the communication module of the sensor node. Implementation results show how the proposed fingerprint recognition based on the novel texture-based feature named QFingerMap16 (QFM) can be implemented fully inside a low-cost sensor node. Robustness, security and privacy issues at the proposed sensor nodes are discussed and analyzed with experimental results from PUFs and fingerprints taken from public and standard databases.
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spelling doaj.art-4c75388cfa5a40bd9165102fd8068f192022-12-22T02:59:13ZengMDPI AGSensors1424-82202018-07-01188242910.3390/s18082429s18082429A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor NodesRosario Arjona0Miguel Ángel Prada-Delgado1Javier Arcenegui2Iluminada Baturone3Instituto de Microelectrónica de Sevilla (IMSE-CNM), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Sevilla, Américo Vespucio, 28, 41092 Seville, SpainInstituto de Microelectrónica de Sevilla (IMSE-CNM), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Sevilla, Américo Vespucio, 28, 41092 Seville, SpainInstituto de Microelectrónica de Sevilla (IMSE-CNM), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Sevilla, Américo Vespucio, 28, 41092 Seville, SpainInstituto de Microelectrónica de Sevilla (IMSE-CNM), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Sevilla, Américo Vespucio, 28, 41092 Seville, SpainSecurity is essential in sensor nodes which acquire and transmit sensitive data. However, the constraints of processing, memory and power consumption are very high in these nodes. Cryptographic algorithms based on symmetric key are very suitable for them. The drawback is that secure storage of secret keys is required. In this work, a low-cost solution is presented to obfuscate secret keys with Physically Unclonable Functions (PUFs), which exploit the hardware identity of the node. In addition, a lightweight fingerprint recognition solution is proposed, which can be implemented in low-cost sensor nodes. Since biometric data of individuals are sensitive, they are also obfuscated with PUFs. Both solutions allow authenticating the origin of the sensed data with a proposed dual-factor authentication protocol. One factor is the unique physical identity of the trusted sensor node that measures them. The other factor is the physical presence of the legitimate individual in charge of authorizing their transmission. Experimental results are included to prove how the proposed PUF-based solution can be implemented with the SRAMs of commercial Bluetooth Low Energy (BLE) chips which belong to the communication module of the sensor node. Implementation results show how the proposed fingerprint recognition based on the novel texture-based feature named QFingerMap16 (QFM) can be implemented fully inside a low-cost sensor node. Robustness, security and privacy issues at the proposed sensor nodes are discussed and analyzed with experimental results from PUFs and fingerprints taken from public and standard databases.http://www.mdpi.com/1424-8220/18/8/2429security for sensor networkstrusted sensor nodesPhysically Unclonable Functions (PUFs)SRAM PUFslightweight biometricsfingerprint recognitionmultibiometricslow-power microcontrollers
spellingShingle Rosario Arjona
Miguel Ángel Prada-Delgado
Javier Arcenegui
Iluminada Baturone
A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
Sensors
security for sensor networks
trusted sensor nodes
Physically Unclonable Functions (PUFs)
SRAM PUFs
lightweight biometrics
fingerprint recognition
multibiometrics
low-power microcontrollers
title A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
title_full A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
title_fullStr A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
title_full_unstemmed A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
title_short A PUF- and Biometric-Based Lightweight Hardware Solution to Increase Security at Sensor Nodes
title_sort puf and biometric based lightweight hardware solution to increase security at sensor nodes
topic security for sensor networks
trusted sensor nodes
Physically Unclonable Functions (PUFs)
SRAM PUFs
lightweight biometrics
fingerprint recognition
multibiometrics
low-power microcontrollers
url http://www.mdpi.com/1424-8220/18/8/2429
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