Electronic prescription sharing method based on block chain and conditional agent re-encryption

Abstract

The invention belongs to the field of blockchain data sharing, and particularly relates to an electronic prescription sharing method based on blockchain and conditional agent re-encryption, which comprises the following steps: generating common parameters, and initializing sharing nodes; generating a second secret key of the user; enabling an electronic prescription issuer to sign an electronic prescription; enabling the electronic prescription sharer to encrypt the IPFS value and the symmetric key; enabling the electronic prescription sharer to generate a conditional proxy re-encryption key by using the key; allowing the shared person to obtain and verify the electronic prescription; according to the invention, the identity-based key escrow problem is solved through distributed key generation, fine-grained decryption authority delegation of data is achieved through conditional agent re-encryption, and finally safe storage and trusted sharing of electronic prescriptions are achieved incombination with the decentralization and non-tampering characteristics of the blockchain.

Description

technical field [0001] The invention belongs to the field of block chain data sharing, in particular to an electronic prescription sharing method based on block chain and conditional proxy re-encryption. Background technique [0002] With the continuous development of science and technology, more and more information technology means are assisting the hospital to gradually enter the paperless era. The electronic prescription of the hospital is one of the representatives of the application of medical information. Electronic prescriptions rely on network transmission and use information technology programming to carry the drug treatment information that doctors fill in for patients during diagnosis and treatment activities, and serve as a voucher for dispensing drugs. The electronic prescription data archived by the hospital must not only be recognized by patients and the law, but also be strong evidence to resolve disputes encountered by the hospital. At present, electronic ...

AI Technical Summary

Problems solved by technology

[0004] However, when this method encrypts the electronic prescription, it only performs one electronic encryption process, which makes it easy for the sharer to be cracked during the decryption process, and the security of the electronic prescription is poor; when the method obtains the electronic prescription, it does not verify all The signature of the electronic prescription obtained, so that the correctness of the electronic prescription cannot be judged

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