Home Operation and Maintenance Safety Build a trusted subsystem to ensure system network security

Build a trusted subsystem to ensure system network security

Jun 11, 2023 pm 07:42 PM
Trusted computing security subsystem Network security

With the development of the information society, online data and information transmission has become more and more important. At the same time, commercial, political, social and cultural activities conducted on the Internet have become an important part of modern society. However, with the continuous increase of cyber threats and the rapid development of cyber attackers' skills, cyber security issues have become a serious problem, bringing great risks to modern society. Therefore, building a trusted subsystem has become one of the important ways to ensure system network security.

A trusted subsystem refers to a subsystem that can ensure the correct and reliable execution of its functions within the subsystem. The purpose of building a trusted subsystem is to solve the threat to large systems caused by unreliable or malicious software components. Trusted subsystems can protect data and prevent attacks through a variety of security methods, such as firewalls, data encryption, authentication, access control, and more. Through the above technical means, the trusted subsystem can ensure the confidentiality, integrity and availability of the system, thereby ensuring that sensitive data will not be stolen, tampered with, or unavailable.

The following is the practice of building a trusted subsystem to ensure system network security:

  1. Establishment of network security threat model

Establishing a complete network security threat Models are the first step in building trustworthy subsystems. Network threats can be analyzed from multiple dimensions such as threat sources, threat types, and threat objects to determine the possibility and severity of malicious attacks. For different types of security threats, different technical methods and defense methods need to be adopted to ensure the security of the system.

  1. Dynamic access control

The trusted subsystem should have a dynamic access control function that can dynamically control access permissions and permission scope while the system is running. During the practice of access control, issues such as user authentication, network communication protection, and server security should be considered.

  1. Design security interface

The trusted subsystem should have a programmable interface that can interface with external systems. Through the design of security interfaces, the security of the system when processing external requests can be guaranteed, thereby ensuring the integrity and confidentiality of the system. Designing security interfaces requires taking into account technical methods such as authentication and verification of external requests, identity verification, and data transmission encryption.

  1. Security Audit

Security audit can record the time, location, operator, operation content and execution results of key operations, leaving reliable evidence of security incidents. . Through the audit of security events, we can track the occurrence process of security events and understand the methods and techniques used by attackers so that we can take timely response measures.

  1. Construction of a trusted execution environment

A trusted execution environment refers to ensuring the reliability, security and confidentiality of the software operating environment through a series of technical means. In order to protect the system from malware attacks. A trusted execution environment requires the use of different technical means to prevent various security threats, such as the injection and execution of malicious files, anti-virus technology, code vulnerabilities, etc.

You can build a trusted subsystem through the above practical methods to ensure system network security. Establishing a trusted subsystem can achieve the goals of ensuring data security, strengthening the security of application systems, and protecting the application environment from attacks. In this process, you can consider drawing on some international security standards and best practices, such as the ISO 27002 standard, COBIT 5 framework, ITILv3 management system, etc.

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