Blockchain-Powered Healthcare Systems: Enhancing Scalability and Security with Hybrid Deep Learning

. 2023 Sep 7;23(18):7740. doi: 10.3390/s23187740

Algorithm 3 Homomorphic Encryption for Medical Records

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procedure EncryptMedicalRecord(record, publicKey) $encryptedRecord \leftarrow new EncryptedRecord$ $encryptedRecord . patientID \leftarrow Encrypt (record . patientID, publicKey)$ $encryptedRecord . data \leftarrow Encrypt (record . data, publicKey)$ return $encryptedRecord$ ▹ Return the encrypted medical record
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end procedure
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procedure DecryptMedicalRecord(encryptedRecord, privateKey) $decryptedRecord \leftarrow new MedicalRecord$ $decryptedRecord . patientID \leftarrow Decrypt (encryptedRecord . patientID, privateKey)$ $decryptedRecord . data \leftarrow Decrypt (encryptedRecord . data, privateKey)$ return $decryptedRecord$ ▹ Return the decrypted medical record
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end procedure
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procedure PerformHomomorphicOperation(encryptedData1, encryptedData2) $result \leftarrow HomomorphicOperation$ (encryptedData1, encryptedData2) return $result$ ▹ Return the result of the homomorphic operation
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end procedure