EEoP: A Lightweight Security Scheme over PKI in D2D Cellular Networks

Device-to-Device (D2D) communication is a promising technology that facilitates the deployment of devices to provide extended coverage where devices can act as user or relays. However, introducing such technology where the user can act as semi-intelligent relays, open a wide range of security threats, specifically, in terms of confidentiality and integrity. Another key issue of these devices is the limited computational and storage capabilities. Thus, to address the above challenges, this paper proposed a computationally lightweight crypto system based on Elliptic curve and ElGamal over public-key infrastructure (EEoP). It uses ECC for creation of keys while uses ElGamal for encryption and decryption over public-key infrastructure. Mathematical analysis shows that EEoP ensures the confidentiality and integrity of the communication. Performance analysis shows that proposed scheme outperformed the baseline protocols. The proposed crypto system can be used in relay-based communication

Trust‑based lightweight security protocol for device to device multihop cellular communication (TLwS)

D2D communication is an integral part of LTE-Advance and 5G cellular networks, has gained a lot of popularity in recent years as it ofers high speed, extended coverage, and ubiquitous connectivity. Besides basic function that is direct communication without the need of Base Station (BS), D2D allows small communicating device to act as intermediate device not only for forward the trafcs but also permits the sharing of resources such as spectrum, services, data and social contents for any users that are near the proximity range. With the provision of devices to provide such services and act as authorization devices give rise to vulnerabilities in terms of security and trust, therefore secure mutual authentication is mandatory to mitigate any security threats. In this paper, certifcateless trust based lightweight security scheme (TLWS) for D2D multihop communication is proposed. This proposed scheme utilized elliptic curve and Elgamal cryptosystem assisted with secure hashing algorithm, timestamps, and blindfold challenge for secure communication and key agreements. In addition, we prove that TLWS provides secure mutual authentication using the broadly accepted Burrows–Abadi–Needham logic and shows that the proposed scheme is protected against replay attacks and Man in the middle attack. Overall, TLWS ofers better security and functionality features, and the communicationandcomputationaloverheadsarecomparablewiththerelatedschemes. Therefore, TLWS is applicable to mobile environment efciently

LEES: a Hybrid Lightweight Elliptic ElGamal-Schnorr-Based Cryptography for Secure D2D Communications, Journal of Telecommunications and Information Technology, 2021, nr 2

Device-to-device (D2D) communications in 5G networks will provide greater coverage, as devices will be acting as users or relays without any intermediate nodes. However, this arrangement poses specific security issues, such as rogue relays, and is susceptible to various types of attacks (impersonation, eavesdropping, denial-of-service), due to the fact that communication occurs directly. It is also recommended to send fewer control messages, due to authenticity- and secrecy related prevailing requirements in such scenarios. Issues related to IoT applications need to be taken into consideration as well, as IoT networks are inherently resource-constrained and susceptible to various attacks. Therefore, novel signcryption algorithms which combine encryption with digital signatures are required to provide secure 5G IoT D2D communication scenarios in order to protect user information and their data against attacks, without simultaneously increasing communication costs. In this paper, we propose LEES, a secure authentication scheme using public key encryption for secure D2D communications in 5G IoT networks. This lightweight solution is a hybrid of elliptic curve ElGamal-Schnorr algorithms. The proposed scheme is characterized by low requirements concerning computation cost, storage and network bandwidth, and is immune to security threats, thus meeting confidentiality, authenticity, integrity and non-repudiation-related criteria that are so critical for digital signature schemes. It may be used in any 5G IoT architectures requiring enhanced D2D security and performanc

A Multi-User, Single-Authentication Protocol for Smart Grid Architectures

open access articleIn a smart grid system, the utility server collects data from various smart grid devices. These data play an important role in the energy distribution and balancing between the energy providers and energy consumers. However, these data are prone to tampering attacks by an attacker, while traversing from the smart grid devices to the utility servers, which may result in energy disruption or imbalance. Thus, an authentication is mandatory to efficiently authenticate the devices and the utility servers and avoid tampering attacks. To this end, a group authentication algorithm is proposed for preserving demand–response security in a smart grid. The proposed mechanism also provides a fine-grained access control feature where the utility server can only access a limited number of smart grid devices. The initial authentication between the utility server and smart grid device in a group involves a single public key operation, while the subsequent authentications with the same device or other devices in the same group do not need a public key operation. This reduces the overall computation and communication overheads and takes less time to successfully establish a secret session key, which is used to exchange sensitive information over an unsecured wireless channel. The resilience of the proposed algorithm is tested against various attacks using formal and informal security analysis

Securing Body Sensor Networks: Sensor Association and Key Management

Accepted versio

Resource Efficient Authentication and Session Key Establishment Procedure for Low-Resource IoT Devices

open access journalThe Internet of Things (IoT) can includes many resource-constrained devices, with most usually needing to securely communicate with their network managers, which are more resource-rich devices in the IoT network. We propose a resource-efficient security scheme that includes authentication of devices with their network managers, authentication between devices on different networks, and an attack-resilient key establishment procedure. Using automated validation with internet security protocols and applications tool-set, we analyse several attack scenarios to determine the security soundness of the proposed solution, and then we evaluate its performance analytically and experimentally. The performance analysis shows that the proposed solution occupies little memory and consumes low energy during the authentication and key generation processes respectively. Moreover, it protects the network from well-known attacks (man-in-the-middle attacks, replay attacks, impersonation attacks, key compromission attacks and denial of service attacks)

Public key cryptography in resource-constrained WSN

In this paper we present a detailed review of the works on public key cryptography (PKC) in wireless sensor networks (WSNs). In the early days of sensor networks, public key cryptography was thought to be completely unfeasible considering its computational complexity and energy requirements. By this time, several works have proved that the lightweight versions of many well-known public key algorithms can be utilized in WSN environment. With the expense of a little energy, public key based schemes could in fact be the best choice for ensuring data security in high-security demanding WSN applications. Here, we talk about the notion of public key cryptography in WSN, its applicability, challenges in its implementation, and present a detailed study of the significant works on PKC in WSN