The need for secure data sharing between hospitals is a big deal. This is because hospitals handle sensitive information. However, current systems have trouble keeping data safe and accessible. They also struggle with scalability and transparency. This is due to the many threats lurking online.

To tackle these issues, a new approach has been suggested. It combines blockchain technology, the Inter-Planetary File System (IPFS), and proxy re-encryption. This mix aims to boost data security during exchanges between hospitals. Proxy re-encryption allows data to be shared securely. It does this without revealing the original data.

In this setup, encrypted Electronic Medical Records (EMRs) are stored in a decentralized way using IPFS. IPFS handles large EMRs, bypassing the blockchain's storage limits. The blockchain acts as a secure and unchangeable ledger. It stores the hash returned from IPFS, ensuring transparency and accountability of patient records.

The proposed method has been put through rigorous testing. It measures key performance metrics like computation cost, key generation time, encryption and decryption processes, deployment cost, latency, and throughput. The results show that this new scheme is more efficient and secure than existing methods. It offers a stronger defense against data breaches and ensures that patient information remains confidential and intact.

However, it's important to note that while this approach shows promise, it's not without its challenges. Implementing such a system requires significant resources and technical expertise. Additionally, ensuring interoperability between different hospital systems can be complex. But with the right investment and collaboration, this could revolutionize how hospitals share and protect patient data.

It's also crucial to consider the broader implications of such technology. As healthcare becomes more digital, the need for robust security measures will only grow. This approach could set a new standard for data protection in the healthcare industry. It could also pave the way for similar innovations in other sectors. But for now, the focus is on improving data security in hospitals. The goal is to ensure that patient information remains safe and accessible, no matter where it needs to go.

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