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Real-time auditing method based on multi-level roles in medical cloud environment

A cloud environment and role technology, applied in digital transmission systems, user identity/authority verification, secure communication devices, etc., can solve problems such as poor security, high audit costs, and low efficiency, and achieve high security and high audit accuracy , to prevent the effect of attacking

Active Publication Date: 2022-07-05
HEBEI UNIVERSITY
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a real-time audit method based on multi-level roles in the medical cloud environment to solve the problems of high audit cost, low efficiency and poor security in the existing data integrity audit scheme, which is not suitable for the medical field

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  • Real-time auditing method based on multi-level roles in medical cloud environment
  • Real-time auditing method based on multi-level roles in medical cloud environment

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Embodiment Construction

[0045] The multi-level role real-time audit method in the medical cloud environment of the present invention is realized based on the multi-level role real-time audit system in the medical cloud environment, such as figure 1 As shown, the audit system includes multi-level role users, gateways, and cloud servers.

[0046] Multi-level role users: It is assumed that multi-level role users are trusted by medical institutions. Users include roles such as doctors, nurses, and pharmacists, and they have different access rights. A multi-level role user includes a group of user group nodes. The multi-level key management method is adopted. The parent node can export the private key of the descendant node, but the descendant node cannot export the private key of the parent node. Multi-level role users first register with the medical institution to receive the access credentials of the medical institution through a secure channel, and then use the access credentials to directly read or ...

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Abstract

The invention relates to a multi-level role real-time auditing method in a medical cloud environment, which is based on a multi-level role user structure, when a data object group is operated, firstly, whether the data object group belongs to a descendant node of the data object group needs to be judged, when the data is generated, the data is encrypted and uploaded to a medical cloud, and Mac of the encrypted data is calculated and stored; meanwhile, a signature and a receipt are generated and stored, and preparation is made for subsequent real-time audit determination. When the data is used, the encrypted data is downloaded to the local from the medical cloud, the signature and the receipt are verified, meanwhile, Mac of the encrypted data is calculated and compared with a locally stored value, so that the integrity of the data is audited, and after the audit is passed, the data is decrypted by using a descendant node key obtained through calculation. According to the method, the integrity of the data is audited while the data is used, so that real-time and deterministic auditing is realized.

Description

technical field [0001] The invention relates to a cloud data auditing method, in particular to a multi-level role-based real-time auditing method in a medical cloud environment. Background technique [0002] With the development of medical cloud, medical institutions use cloud servers to store Electronic Health Records (EHRs), which can effectively reduce local storage overhead and simplify the storage management process. However, most of the existing access controls rely on the assumption that the cloud server is trusted. In fact, once medical records are uploaded to the cloud, the owner loses control over the data, and sensitive content can be accessed or even maliciously modified by unauthorized entities. Therefore, it is crucial to protect the integrity of EHRs. [0003] Existing data integrity auditing schemes basically use third-party auditing, which requires purchasing auditing services from a third-party auditing agency, and the third-party auditing agency obtains ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/40H04L67/12
CPCH04L9/3247H04L63/123H04L63/0435H04L67/12H04L63/06
Inventor 杜瑞忠万源郝明超
Owner HEBEI UNIVERSITY
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