Homomorphic Consortium Blockchain for Smart Home System Sensitive Data Privacy Preserving

She, Weilong; Gu, Zhi-Hao; Lyu, Xukang; Liu, Qi; Zhao, Tian; Liu, Wei

doi:10.1109/access.2019.2916345

Cited by 65 publications

(50 citation statements)

References 26 publications

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“…managing the selection of energy-efficient service providers, of the proposed model. In [50], the authors have designed a smart home system based on consortium blockchain that is specific to data privacy. The performance of the model was evaluated by simulation; however, the architecture does not explained the energy consumption and activity processing time.…”

Section: Consortium Blockchain Systems For Smart Homesmentioning

confidence: 99%

Investigating Smart Home Security: Is Blockchain the Answer?

et al. 2020

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Smart Home automation is increasingly gaining popularity among current applications of Internet of Things (IoT) due to the convenience and facilities it provides to the home owners. Sensors are employed within the home appliances via wireless connectivity to be accessible remotely by home owners to operate these devices. With the exponential increase of smart home IoT devices in the marketplace such as door locks, light bulbs, power switches etc, numerous security concerns are arising due to limited storage and processing power of such devices, making these devices vulnerable to several attacks. Due to this reason, security implementations in the deployment of these devices has gained popularity among researchers as a critical research area. Moreover, the adoption of traditional security schemes has failed to address the unique security concerns associated with these devices. Blockchain, a decentralised database based on cryptographic techniques, is gaining enormous attention to assure security of IoT systems. The blockchain framework within an IoT system is a fascinating substitute to the traditional centralised models, which has some significant concerns in fulfilling the demand of smart homes security. In this article, we aim to examine the security of smart homes by instigating the adoption of blockchain and exploring some of the currently proposed smart home architectures using blockchain technology. To present our findings, we describe a simple secure smart home framework based on a refined version of blockchain called Consortium blockchain. We highlight the limitations and opportunities of adopting such an architecture. We further evaluate our model and conclude with the results by designing an experimental testbed using a few household IoT devices commonly available in the marketplace.

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Section: Consortium Blockchain Systems For Smart Homesmentioning

confidence: 99%

Investigating Smart Home Security: Is Blockchain the Answer?

et al. 2020

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“…Homomorphic cryptosystem comprises of three algorithms, such as key generation KeyGen, encryption Encry and decryption Decry. 46 A public-key cryptosystem is used to derive the pair of keys (sk, pk), where sk is used for decryption and pk is used for encryption. Homomorphic encryption (HE) enables certain algebraic operations on the plaintext to be applied directly on the ciphertext, such as a secure addition and secure multiplication.…”

Section: Homomorphic Cryptosystemmentioning

confidence: 99%

“…HE is used efficiently in data aggregation while protecting the privacy of users, and in this paper, paillier cryptosystem is used. 46 In paillier cryptosystem, E(.) is denoted as HE and m ∈ Z N are the messages.…”

Section: Homomorphic Cryptosystemmentioning

confidence: 99%

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A secure blockchain‐based demurrage mechanism for energy trading in smart communities

Dahunsi

Javaid

2020

Int J Energy Res

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This paper combines additive homomorphic encryption and consortium blockchain technology to provide privacy and trust. Additionally, a dynamic energy pricing model is formulated based on the demand response ratio (DRR) of the load demand of prosumers to address fixed energy pricing problems. The proposed dynamic pricing model includes demurrage fees, which is a monetary penalty imposed on a prosumer, if it failed to deliver energy within the agreed duration. Furthermore, this paper also designs and analyzes a threat model of the proposed system. Experimental evaluations show the effectiveness of the proposed model with regards to low transaction cost, the minimum execution time for block creation, the privacy of prosumers and dispute resolution of demurrage fees. Moreover, the proposed scheme reduces the average system overhead cost up to 66.67% as compared to 33.43% for an existing scheme. Additionally, the proposed blockchain proof-of-authority consensus average hash power is minimized up to 82.75% as compared to 60.34% for proof-of-stake and 56.89% for proof-of-work consensus mechanisms.

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“…However, false data sent by sensors frequently can increase the energy consumption of sensors and reduce the life span of sensors. Feng [18] used AES-128 encryption algorithm to encrypt smart home sensors data; In [19], WEI SHE et al integrated homomorphic encryption with blockchain to realize the privacy protection of smart home. The above encryption algorithms can realize privacy protection of smart home to a certain extent, but they cost a lot of calculation, because of the complex algorithm and the large amount of information.…”

Section: Relative Workmentioning

confidence: 99%

Preference Preserved Privacy Protection Scheme for Smart Home Network System Based on Information Hiding

2020

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Smart home is an emerging form of the Internet of things (IoT), which provides a convenient and comfortable living environment for the smart home users. With the explosive growth of smart home information, people pay more attention to the privacy protection of smart home, including the choice of privacy and effective privacy protection scheme. This paper proposes a privacy protection scheme based on information hiding, the scheme guarantees the sensitive data transmitted securely. First, the smart home Real-time sensor data are classified into sensitive data and non-sensitive data through machine learning, the process can be controlled according to the user's preferences. Second, the sensitive data can be transmitted securely by ordinary channels using method of combination encryption with information hiding. Experiment results show that this scheme can help users to express their preferences to the privacy protection, changing the previous practice that users can only accept the privacy settings provided by the supplier. What's more, the scheme combines encryption with information hiding, providing a double guarantee for the sensitive data during they are transmitted on ordinary channels. Comparing to the previous practice of using encryption merely, this scheme greatly improves the security of data transmission and is more suitable for the real environment. INDEX TERMS Smart home, privacy protection, data encryption, information hiding.

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Homomorphic Consortium Blockchain for Smart Home System Sensitive Data Privacy Preserving

Cited by 65 publications

References 26 publications

Investigating Smart Home Security: Is Blockchain the Answer?

Investigating Smart Home Security: Is Blockchain the Answer?

A secure blockchain‐based demurrage mechanism for energy trading in smart communities

Preference Preserved Privacy Protection Scheme for Smart Home Network System Based on Information Hiding

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