Post-Quantum Enabled Cyber Physical Systems

Cyber physical systems (CPSs) will be deployed for decades, thus they should be secure against long-term attacks. Most CPSs adopt the datagram transport layer security (DTLS), as the de facto security protocol. By using public key cryptography (PKC) based on traditional RSA or elliptic-curves, DTLS...

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Bibliographic Details
Published in:IEEE embedded systems letters 2019-12, Vol.11 (4), p.106-110
Main Authors: Sepulveda, Johanna, Liu, Shiyang, Bermudo Mera, Jose M.
Format: Article
Language:English
Subjects:
Communications technology
Cryptography
Cyber-physical systems
Encryption
Internet of Things
Internet of Things (IoT)
Internet security
Quantum computers
Quantum computing
Transport
Wireless sensor networks
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Summary:Cyber physical systems (CPSs) will be deployed for decades, thus they should be secure against long-term attacks. Most CPSs adopt the datagram transport layer security (DTLS), as the de facto security protocol. By using public key cryptography (PKC) based on traditional RSA or elliptic-curves, DTLS establishes secured communication channels between multiple parties. However, the foreseeable breakthrough of quantum computers represents a risk for many PKC ecosystems. Traditional PKC will no be longer considered secure. Therefore, the integration of post-quantum security is mandatory. Due to their limited resources, tight performance requirements, and long-term life-cycles, this is especially challenging for CPSs. In this letter we propose, implement and evaluate for the first time a post-quantum enhanced DTLS, able to establish secure communications of CPSs, even in the presence of quantum computers. An NTRU post-quantum solution was used to perform the key transport among the CPSs entities. We show that is feasible to integrate our post-quantum enhanced DTLS, together with the full Internet engineering task force protocol stack in highly constrained environments, such as the CPSs.
ISSN:1943-0663
1943-0671
DOI:10.1109/LES.2019.2895392