Key challenges for smart grid information security

Smart grid is the future development direction of China's power grid and even the world's power grid. Establishing a high-speed, two-way, real-time and integrated communication system is the basis for realizing data acquisition, protection and control of smart grids. Therefore, establishing a high-quality communication system is a step toward smart grid. first step. In the construction of smart grid, China Southern Power Grid actively introduces and absorbs the key advanced technologies of the smart grid in the world, and combines the specific conditions and needs of the South Network to innovate, with plans, steps, and efficiency. Building a smart grid.

Guangdong Power Grid is currently the largest provincial power grid in China Southern Power Grid. With the gradual implementation of the “9+2” Pan-Pearl River Delta cooperation strategy and the rapid, healthy and coordinated development of Guangdong's economy and society, the development space of Guangdong Power Grid will be more extensive. Combining the different aspects of Guangdong smart grid planning, technology and management standards, key technology research and the medium and long-term development goals of Guangdong Power Grid, this paper analyzes the pressure faced by Guangdong Power Communication Network, and has rationally formulated the evolution goal and specificity of Guangdong Power Communication Network. Program.

Key challenges for smart grid information security

Guangdong Power Grid's dispatching data network and integrated information network mainly develop MulTI-ServiceTransferPlatform (MSTP) optical communication, and on this basis, develop data, voice exchange, frequency synchronization, video conferencing systems and other applications, to So far, Guangdong Power Grid Dispatching Data Network and Integrated Information Network have realized three levels of interconnection of network, province and land. Some areas have been extended to county-level units. The sharing of communication resources has effectively expanded the control scope of each application system, reflecting Guangdong. The information development idea of ​​grid integration also makes Guangdong Power Grid's integrated information network face more security challenges.

Security threats from the Internet are more complicated: With the continuous improvement of the information construction of the Guangdong Power Grid Integrated Information Network, the security threats from the Internet are also complicated, and new viruses, Trojans, DDoS attacks, APT attacks, etc. emerge in an endless stream. These new threats In the integrated information network, as well as power grid dispatching automation, relay protection and safety devices, power plant control automation, substation automation, distribution network automation, power load devices, power market transactions, power user information collection, intelligent power and other fields The continuous emergence of the Guangdong Power Grid integrated information network faces external security threats more severe.

More threats from internal network security: Guangdong Power Grid Integrated Information Network carries the daily office of the power grid, as well as the external power trading business and application platform, from the internal illegal access, the abuse of network resources, the proliferation of viruses, the vulnerability of applications and systems, etc. Affecting the operation of normal business and applications, the internal threats of the integrated information network are mainly reflected in the following aspects:

The number of internal network terminal access points has increased, which has become a major source of security risks and threats. How to implement fine-grained network access control and access control;

How to implement dynamic access control on sensitive data or information inside the office network to protect data security;

Unpredictable security vulnerabilities exist in numerous application systems and service platforms within the integrated information network, from internal deliberate/malicious attacks;

How to ensure effective implementation of information security system and security management strategy, how to monitor network applications and optimize traffic, improve ICT network resource utilization efficiency, and improve unified security management and operation and maintenance.

solution:

In order to ensure that Guangdong Power Grid's comprehensive information network can effectively resist internal and external attacks, Guangdong Power Grid Corporation has carried out rigorous testing on security products of domestic manufacturers. Huawei's USG6000 series of next-generation firewalls have performed well in performance and security capabilities, while effectively ensuring reliability. The scalability and easy management requirements have become the first choice for Guangdong Power Grid to build a smart grid information security infrastructure, providing comprehensive network border management and defense for the entire power integrated information network.

According to the different characteristics of Guangdong Power Grid's comprehensive information network defense requirements, Huawei first uses USG6650 next-generation firewall products to deploy USG6650 at the boundary of the Internet export boundary and integrated information network to provide 10G full threat protection and provide powerful NAT address translation for Internet exports. Features. At the same time, the whole network equipment realizes dispatch management and report presentation through the unified management center, and builds a simple and efficient security protection system for Guangdong Power Grid.

The USG6000 series is a new generation of next-generation firewall released by Huawei in 2013. It provides 6000+ application identification and 6-dimensional security management and control based on Gartner's definition of NGFW. It is the next-generation firewall with the most detailed management and control capabilities in the industry. The USG6000 series closely follows ICT trends and threat trends, providing feature-based intrusion prevention and behavior-based unknown threat protection, providing comprehensive network security protection for Guangdong Power Grid.

value of customer:

Full threat defense to ensure smooth operation of the Guangdong power grid office business. Based on the feature-based intrusion prevention and virus protection capabilities, the USG6000 series provides cloud-based sandbox technology to provide behavioral characteristics analysis of unknown threats, which can effectively prevent various unknown threats and APT attacks against office service systems. Provides fine access control and user identity authentication in both directions of the network, providing user and application rights management, which guarantees the stable development of the Guangdong power grid office business, and also meets the basic requirements of the power industry information security level protection.

High-performance protection, high-quality user experience, and support for large business traffic. With the new hardware and software design, the USG6000 series can achieve a performance degradation of less than 50% with full threat protection enabled, and the performance degradation is minimal among all participating security vendors. Full threat protection greater than 10G has the ability to provide comprehensive security protection for every business system at the same time.

Hardware reliability design to ensure business continuity. Huawei's solution for Guangdong Power Grid adopts redundant design on power supply, fan and hard disk. At the same time, it adopts dual-system hot standby redundancy deployment at each node, which effectively reduces the business risks that may be brought about by each link. The real-time and continuity of the business system provides the best guarantee.

Efficient management means to reduce TCO. Huawei's USG6000 series introduces a new management concept in the design and development process, namely, automatic policy configuration and optimization based on traffic learning. Provide rapid deployment through the preset template when the device goes online. After the line is online, traffic policy learning and analysis automatically generate security policy recommendations and continuously refine security policy management. After stable operation, the strategy is learned to automatically reduce the redundancy strategy to improve the efficiency of policy matching. The automatic management method of the USG6000 series enables the radio and television power grid to accurately open the full threat security protection in the absence of professional security management personnel, and the CTO is reduced by more than 30%.

Huawei's next-generation firewall has become one of the products for building the information security infrastructure of Guangdong's smart grid. While ensuring the security and continuity of the power business, it is designed in strict accordance with the security requirements of the information system security of the power industry to improve the security of power information systems. Level protection level and capability, further strengthen the safety level protection construction of power information system, and obtain the recognition and trust of Guangdong Power Grid Company customers, and promote further cooperation between Huawei and Guangdong Power Grid Corporation in the field of information security construction.

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