Stochastic and Information Theory Techniques to Reduce Large Datasets and Detect Cyberattacks in Ambient Intelligence Environments

Bordel, Borja; Sánchez-Picot, Álvaro

doi:10.1109/access.2018.2848100

Cited by 20 publications

(22 citation statements)

References 29 publications

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“…32 Besides, intelligent mechanisms to protect IoT and CPS deployments have also been studied. 33,34 Finally, PbD mechanisms have also been investigated in the context of well-being services, especially in scenarios combining health services, digital technologies, and hardware devices, such as IoT elements. 7 Discussions about legal issues related to this approach have also been published.…”

Section: Related Workmentioning

confidence: 99%

Enabling trustworthy personal data protection in eHealth and well-being services through privacy-by-design

Robles

Bordel

Alcarria

et al. 2020

International Journal of Distributed Sensor Networks

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Users are each day more aware of their privacy and data protection. Although this problem is transversal to every digital service, it is especially relevant when critical and personal information is managed, as in eHealth and well-being services. During the last years, many different innovative services in this area have been proposed. However, data management challenges are still in need of a solution. In general, data are directly sent to services but no trustworthy instruments to recover these data or remove them from services are available. In this scheme, services become the users’ data owners although users keep the rights to access, modify, and be forgotten. Nevertheless, the adequate implementation of these rights is not guaranteed, as services use the received data with commercial purposes. In order to address and solve this situation, we propose a new trustworthy personal data protection mechanism for well-being services, based on privacy-by-design technologies. This new mechanism is based on Blockchain networks and indirection functions and tokens. Blockchain networks execute transparent smart contracts, where users’ rights are codified, and store the users’ personal data which are never sent or given to external services. Besides, permissions and privacy restrictions designed by users to be applied to their data and services consuming them are also implemented in these smart contracts. Finally, an experimental validation is also described to evaluate the Quality of Experience (in terms of user satisfaction) and Quality of Service (in terms of processing delay) compared to traditional service provision solutions.

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Section: Related Workmentioning

confidence: 99%

Enabling trustworthy personal data protection in eHealth and well-being services through privacy-by-design

Robles

Bordel

Alcarria

et al. 2020

International Journal of Distributed Sensor Networks

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“…The mutual information between the encrypted and the original information flow ( ; ) represents the residual information that remains in the encrypted signal about the original one (7). Considering expressions (5) and (6), it is easy to obtain this amount is zero; i.e., the encrypted signal does not provide any information about the original…”

Section: Encryption Mechanismmentioning

confidence: 99%

“…This encryption scheme also enables us to easily calculate the synchronization signal through the proposed correlation algorithm. As key streams have a random behavior, their correlation with Then, because of the structure of the XOR truth table, a known value from the encrypted signal e[n] of all possible values in the range of the information signal m[n] have the same probability of having generated that encrypted sample (6).…”

Section: Encryption Mechanismmentioning

confidence: 99%

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Protecting Private Communications in Cyber-Physical Systems through Physical Unclonable Functions

et al. 2019

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Cyber-physical systems (CPS) are envisioned to change the whole of society. New engineered systems joining physical and digital solutions are being employed in industry, education, etc. These new systems are networked by default, and private information is shared among the different components related to users, critical infrastructures, or business operations. In this context, it is essential to encrypt those communication links to protect such information. However, even most complicated schemes based on hybrid (asymmetric and symmetric) solutions, finally require physical devices to store a secret key. This approach is cryptographically weak, as any person with physical access to the device could obtain that key. Therefore, in this paper we propose the use of physical unclonable functions (PUF) to generate secret keys for lightweight encryption schemes. Using PUFs, any attempt to capture the key is changing the original secret stream, and even manufacturers are not able to build two identical PUFs. The proposed key generator is based on magnetic materials and lightweight pseudorandom number generators to meet the low-cost and small size requirements of CPS. In particular, materials with an activated exchange-bias effect are employed, together with simple copper coils. The encryption process can be based on a simple XOR gate because of the robustness of the proposed key generator. In order to evaluate the performance of the proposed technology, an experimental validation based on simulation scenarios is also provided.

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“…Block ciphers, asymmetric keys, secure sessions, and similar solutions based on, for example, elliptic curves are typical solutions presenting these problems [ 11 ]. However, lighter cryptographic approaches [ 12 ] have been proved to be unsecure against some of the most typical attacks; and (what is more worrying) against modern and future cyber-physical attacks [ 13 ]. Then, a totally new and innovative approach is required to communicate access points in the fronthaul and base stations in the backhaul (where large processing resources are available).…”

Section: Introductionmentioning

confidence: 99%

Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media

Bordel

Alcarria

Jara

2020

Sensors

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Future 5G networks are characterized by three basic ideas: enhanced mobile broadband communications, massive machine-type communications, and ultra-low-latency communications. Any of these requirements needs, to be fulfilled, the implementation of high-efficiency technologies at all levels. This includes some of the costliest mechanisms in terms of computational time and bitrate: information protection solutions. Typical techniques in this area employ complex algorithms and large protocol headers, which strongly reduces the effective baud rate and latency of future 5G networks and communications. This is especially relevant in the access network, which in 5G networks will follow a cloud-based architecture, where thousands of different devices must communicate, before aggregating all those streams to be sent to the backbone. Then, new and more efficient mechanisms are needed in the cloud radio access networks (C-RAN) for future 5G systems. Therefore, in this paper it is proposed a novel information protection scheme for C-RAN architectures based on resonant phenomena in optical fibers communicating the fronthaul and backhaul in 5G networks. Resonant structures and physical nonlinearities generate a chaotic signal which may encrypt and hide at physical level every communication stream in a very efficient manner. To evaluate the proposed mechanism, an experimental validation based on simulation techniques is also described and results discussed.

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Stochastic and Information Theory Techniques to Reduce Large Datasets and Detect Cyberattacks in Ambient Intelligence Environments

Cited by 20 publications

References 29 publications

Enabling trustworthy personal data protection in eHealth and well-being services through privacy-by-design

Enabling trustworthy personal data protection in eHealth and well-being services through privacy-by-design

Protecting Private Communications in Cyber-Physical Systems through Physical Unclonable Functions

Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media

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