Conference Papers

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    Towards a Secure Electronic Health Record System using Blockchain Technology
    (Institute of Electrical and Electronics Engineers Inc., 2021) Bhattacharyya, S.; Chandrasekaran, K.
    Blockchain has emerged as a key technology for ensuring reliability and security in several application areas primarily including the healthcare sector. Blockchain is a distributed ledger where blocks of transactions are connected in a chain using the cryptographic hash function of the previous block, making it an append-only structure. Any modification on any of the blocks will generate different hash values in other blocks in a cascading manner and different link relations. In this way the blockchain achieves immutability and security. Blockchain also involves consensus mechanisms in order to ensure synchronization among blocks and agreement between existing nodes to add a new transaction in the chain. Healthcare data is highly sensitive in nature, which consists of private information related to the diagnosis and treatment of patients. In traditional approach these data are stored by each hospital separately where sharing data is very time consuming. Also, health data is very limited to access due to the risk of disclosure of sensitive information. In order to address these issues, the objective of this paper is to integrate blockchain technology with healthcare records/data in order to provide better sharing of data without the fear of data tampering or security breach. © 2021 IEEE.
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    Swaasthya Sampathee: Blockchain based EHR Framework
    (Institute of Electrical and Electronics Engineers Inc., 2022) Sadashiv, N.; Vachana, S.G.
    Advancement in the field of technology has trans-formed healthcare system with increased healthcare records. Electronic health records (EHR) helps improve wellness of patient and promotes quality of medical care. However, lack of ubiquitous access to fool proof EHR leads to poor health care facilities with higher expenses. Traditional approaches of storage and access of EHR compromises the ownership, authenticity of the records along with privacy and security issues. To mitigate these issues and promote widespread adoption of EHR especially in rural areas, an Ehereum's Ropsten blockchain based EHR framework in cloud environment is presented in this paper. The framework and its implementation is based upon the use of asymmetric cryptographic keys to securely store the EHR on Inter planetary file system (IPFS) and provide controlled access. The blockchain powered EHR facilitates security and privacy of patient's records and renders authorized ubiquitous access of patient's EHR. © 2022 IEEE.