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Cryptography
Special Issues
Key Management in Wireless Sensor Network
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Key Management in Wireless Sensor Network

A special issue of Cryptography (ISSN 2410-387X).

Deadline for manuscript submissions: closed (31 October 2018) | Viewed by 16926

Special Issue Editors

Dr. Filippo Gandino

E-Mail Website
Guest Editor
Dipartimento di Automatica e Informatica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
Interests: pervasive computing; wireless sensor networks; RFID
Prof. Dr. Maurizio Rebaudengo

E-Mail Website
Guest Editor
Department of Control and Computer Engineering, Politecnico di Torino, Torino, Italy
Interests: RFID; WSN
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wireless sensor networks (WSNs) are becoming a very popular pervasive technology. They normally consist of many low-cost and low-power devices that can sense the environment, process information, and transmit messages by means of wireless communication. According to their limited resources, WSNs are exposed to many security threads, such as eavesdropping, hardware tampering and false messages injection. Therefore, effective security systems that are compliant with the specific characteristics of a WSN are required.

The majority of security systems for wireless sensor networks are based on symmetric encryption. The main open issue for these approaches concerns the establishment of symmetric keys. Much research in recent years has focused on key distribution and management, and several schemes have been proposed. Most of the current solutions use symmetric cryptography since the communication and computational overheads of public-key cryptography limit their applicability to WSNs.

Among symmetric key approaches, many different strategies have been considered. The purpose of this Special Issue on “Key Management in Wireless Sensor Network” is to explore the most recent and innovative solutions that guarantee security and efficiency.

Dr. Filippo Gandino
Prof. Dr. Maurizio Rebaudengo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Cryptography is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Public-key cryptography
  • Deployment knowledge
  • Random Key Distribution
  • Symmetric key management
  • Hardware security
  • Transitory Master Key
  • Combinatorial key predistribution

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Published Papers (2 papers)

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12 pages, 693 KiB  
Article
Redundancy in Key Management for WSNs
by Filippo Gandino, Bartolomeo Montrucchio and Maurizio Rebaudengo
Cryptography 2018, 2(4), 40; https://doi.org/10.3390/cryptography2040040 - 8 Dec 2018
Viewed by 6230
Abstract
Security in wireless sensor networks is commonly based on symmetric encryption and requires key-management systems to establish and exchange secret keys. A constraint that is common to many key-management approaches is an upper bound to the total number of nodes in the network. [...] Read more.
Security in wireless sensor networks is commonly based on symmetric encryption and requires key-management systems to establish and exchange secret keys. A constraint that is common to many key-management approaches is an upper bound to the total number of nodes in the network. An example is represented by the schemes based on combinatorial design. These schemes use specific rules for the generation of sets of keys that are distributed to the nodes before deploying the network. The aim of these approaches is to improve the resilience of the network. However, the quantity of data that must be stored by each node is proportional to the number of nodes of the network, so the available memory affects the applicability of these schemes. This paper investigates the opportunity of reducing the storage overhead by distributing the same set of keys to more than one node. In addition, the presence of redundant sets of keys affects the resilience and the security of the network. A careful analysis is conducted to evaluate benefits and drawbacks of redundant key distribution approaches. The results show that the use of redundancy decreases the level of resilience, but it scales well on very large networks. Full article
(This article belongs to the Special Issue Key Management in Wireless Sensor Network)
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12 pages, 2596 KiB  
Article
An Enhanced Key Management Scheme for LoRaWAN
by Jialuo Han and Jidong Wang
Cryptography 2018, 2(4), 34; https://doi.org/10.3390/cryptography2040034 - 2 Nov 2018
Cited by 33 | Viewed by 10060
Abstract
The LoRaWAN is one of the new low-power wide-area network (LPWAN) standards applied to Internet of Things (IoT) technology. The key features of LPWAN are its low power consumption and long-range coverage. The LoRaWAN 1.1 specification includes a basic security scheme. However, this [...] Read more.
The LoRaWAN is one of the new low-power wide-area network (LPWAN) standards applied to Internet of Things (IoT) technology. The key features of LPWAN are its low power consumption and long-range coverage. The LoRaWAN 1.1 specification includes a basic security scheme. However, this scheme could be further improved in the aspect of key management. In this paper, LoRaWAN 1.1 security is reviewed, and enhanced LoRaWAN security with a root key update scheme is proposed. The root key update will make cryptoanalysis of security keys in LoRaWAN more difficult. The analysis and simulation show that the proposed root key update scheme requires fewer computing resources compared with other key derivation schemes, including the scheme used in the LoRaWAN session key update. The results also show the key generated in the proposed scheme has a high degree of randomness, which is a basic requirement for a security key. Full article
(This article belongs to the Special Issue Key Management in Wireless Sensor Network)
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