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The need for secure and efficient communication between connected devices continues to grow in healthcare systems within smart cities. Secure communication of healthcare data in Internet of Things (IoT) systems is critical to ensure patient privacy and data integrity. Problems with healthcare communication, like data breaches, integrity issues, scalability issues, and cyber threats, make it harder for people to trust doctors, cause costs to rise, stop people from using new technology, and put private data at risk. So, this paper presents a blockchain-based hybrid method for sending secure healthcare data that combines IoT systems with blockchain technology and high-tech encryption techniques like elliptic curve cryptography (ECC). The proposed method uses the public key of a smart contract to encrypt private data to protect its privacy. It also uses cryptographic hashing and digital signatures to make sure that the data is correct and real. The framework stores metadata (e.g., hashes and signatures) on-chain, and large data uses off-chain storage like IPFS to reduce costs and improve scalability. It also incorporates a mechanism to authenticate IoT devices and enable secure communication across heterogeneous networks. Moreover, this work bridges gaps in existing solutions by providing an end-to-end secure communication system for healthcare applications. It provides strong data security and efficient storage for a reliable and scalable way to handle healthcare data safely in IoT ecosystems.
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Tremble: TRansparent Emission Monitoring with BLockchain Endorsement
Since the monitoring of environmental emissions is mostly in the hands of regulatory authorities, collected data may not be easily observed by the interested public. Centrally stored data may also tempt the authorities or others to manipulate the historical record for political or liability reasons. To enable timely, transparent and integrity-protected collection and presentation of emission data, we propose and implement Tremble, an emission monitoring system based on blockchain and IoT sensors. Tremble employs a hybrid storage approach to lower the cost of storage compared to using a pure blockchain without losing data integrity. It provides web interfaces and visualizations for end users to query emission values they are concerned about. Qualitative and quantitative studies involving a total of 62 subjects demonstrate the usability of the system.
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- Award ID(s):
- 1932418
- PAR ID:
- 10317806
- Date Published:
- Journal Name:
- IEEE/ACM Int'l Conference on & Int'l Conference on Cyber, Physical and Social Computing (CPSCom) Green Computing and Communications (GreenCom)
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1109/iThings-GreenCom-CPSCom-SmartData-Cybermatics53846.2021.00024
