Method and computing device for isolating power information and relying on it for power checking
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 杨力祥
- Publication Date
- 2021-12-14
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Figure 1
Abstract
Description
technical field
[0001] The present application relates to the field of information technology, in particular to an access control technology and a technology for preventing attacks through power control. Background technique
[0002] In the prior art, software inevitably has design flaws, and these flaws often become "loopholes" that can be exploited by attacks. For example, by using methods such as copying the array out of range, array out of bounds caused by the array subscript operation, etc., the attacker can use the prepared data to modify the data and code of the kernel, and then launch an attack.
[0003] On this basis, the attacker can further modify the authorization information, change the authorization state, and obtain a state beyond authorization. In turn, operations such as the following can be performed:
[0004] 1. Read user data (including memory and peripheral data) beyond authorization.
[0005] 2. Writing (including tampering and deleting) user data be...