A security control method for an intelligent terminal

Abstract

The invention provides a security control method for an intelligent terminal, comprising the following steps: S1: establishing a communication connection between a cloud security control server and the intelligent terminal, and determining a security control level of the intelligent terminal, that is, a basic level, a standard level or a high security level; S2: controlling the intelligent terminal to power on and read the CPU and flash id information if the security control level between the cloud security control server and the intelligent terminal in the step S1 is the basic level, calculating an encryption value according to the encryption algorithm, and comparing with the value stored in the flash; if the storage flag bit value is 0, representing the first power-on, storing the tag value as 1, and writing the encryption result calculated by the multiple encryption algorithm; reading flash mark bit when the next power-on, storing the flag bit as 1, and realizing normal operation only when the encrypted value calculated in real time must be the same as the encrypted value stored in the flash. Since the algorithm may be switched in real time, and the interactive data is randomlyhopped in the algorithm library, the invention is high in the degree of anti-hacking, high in security, high in cost performance, and convenient for upgrading and maintaining.

Description

[technical field] [0001] The invention relates to the technical field of intelligent terminal security control, in particular to an intelligent terminal security control method with high flexibility, strong security performance and low manufacturing cost. [Background technique] [0002] With the rapid development of Internet infrastructure, the shipments of smart terminals continue to grow and become popular. How the smart terminal protects the self-developed products, prevents software from being copied by competitors, and how to strike a balance between cost and performance are the core concerns of the present invention. [0003] Some traditional smart terminals use hardware encryption to protect self-developed core products. This method increases the cost of the product. The encryption level of the encryption chip is also very different, and the encryption method is fixed. Once the encryption chip is cracked, the entire product will be damaged. There is no security at al...

AI Technical Summary

Problems solved by technology

[0004] Some traditional smart terminals use software encryption, but the encryption method is single, there is no hierarchical control, nested configuration, and it cannot be flexibly matched and combined. High and low hierarchical control, how can we achieve classification of security levels to meet different security requirements? Security algorithm selection It has a wide range and can be combined and nested. The security controller can switch the encryption algorithm at any time, reducing the possibility of being maliciously cracked. It has a high degree of security. It is a problem often considered by technicians in the field, and a large number of research and development and experiments have also been carried out. , and achieved good results

Images