Network monitoring will become a new favorite in the market

Network monitoring is stepping into the era of cloud security. The original isolated network monitoring system will face many challenges from the Internet. The importance of data security in the new security era is particularly prominent. High-tech crimes, jailbreaks and other security issues are no longer The fictions in the movie blockbusters are actually being staged in real life. The rapid development of the information age has brought about the prosperity of network monitoring. Then, in the era of network cloud security, how to escort for "security"?

The rapid development of the information age brings wireless network monitoring

With the development of electronic information technology today, we have brought about various changes in our lives, and our communication transmission technology has also continued to improve. The scope of urbanization is also becoming wider and wider, and the corresponding urban security will also be the top priority of the government administrative department. Therefore, monitoring systems have emerged in various locations to protect people's travel safety. In the absence of large-scale development of wireless networks, the use of a wired layout model has become more and more inconvenient because of the inconvenience caused by the layout of the monitoring system, because even with the best optical fiber wiring, it is effective. Transmission distance is also limited, in order to spread further, you have to add other appropriate equipment to connect. In addition, there are many restrictions on the scope of wiring, such as wiring in more remote places, the cost-effective ratio is not very appropriate.

Therefore, as the application scale of our wireless network continues to expand, its technology is constantly improving. In particular, the speed of wireless transmission is increasing rapidly, which has spawned a wireless network monitoring system. It does not require much wiring, and it is more flexible and adaptable to decentralized single point models in remote areas, fast moving objects, and video surveillance that requires temporary deployment. It can be quickly deployed and flexible. The wireless transmission of the network gradually propped up another blue sky for security monitoring.

Now, in countries with advanced wireless networks, such as the Americas or European countries, due to government support in the relevant mobile surveillance, implementation is also relatively rapid. Countries in Asia, such as Singapore and Japan, are also actively Related field developments, such as displacement detection, face recognition, etc.

China is still in its infancy in the field of mobile surveillance. Enterprises cannot develop their own brands or products with high functionality and high added value. Despite this, with the development of 3G technology and the continuous popularization of services, the growing maturity of network signal coverage and mobile video surveillance systems and the improvement of relevant regulations, mobile video surveillance systems will surely usher in a vast market.

Network monitoring will become a new favorite in the market

In view of the weaknesses of the open security monitoring system mentioned above, security companies began to look for the next direction of the development of network monitoring systems, monitoring equipment encryption, data encryption, software encryption and a series of solutions proposed, all directions are directed to security encryption network monitoring technology Safety monitoring products have been initially applied in the financial and judicial industries. In the near future, data security will become an important criterion for measuring the surveillance system and will be the only key word for security.

With the gradual expansion of video surveillance network deployment and the large-scale deployment, the network monitoring system is more open, the diversification of networking modes, and the convenience of remote access, forcing the development of secure network monitoring technologies. The security issue will be the only way for cloud security marketization.

The security monitoring solution not only has the flexibility of an open network monitoring system, but also can be networked and expanded arbitrarily. At the same time, the security of the entire system is ensured through technical means, and the application of the security system is truly safe. The monitoring system with security features will be After the maturity of the network HD market, it attracts the attention of manufacturers.

How to create safety and security

In order to cope with the huge security risks existing in the above-mentioned network video surveillance, various manufacturers also conducted targeted research for this purpose and introduced some solutions.

The first is based on user names and passwords, or using user authentication such as 802.1x to enhance security and classify users based on permissions. This method has preliminary protective measures, but it can only solve the problem of primary equipment safety and can not effectively deal with data security. Even simple user names and passwords can be easily obtained to break through, and even now it is found that many users are almost It is rare to change the device's default user name and password.

In addition, in the deployment of network cameras, relying more on integrated network cameras, NVRs, network DVR network security technologies, such as the transmission of content using DES, 3DES, AES and other algorithms for encryption. Or hope to deploy other network devices such as security firewalls. Unfortunately, this method is effective for general users, but it is difficult for professional IT personnel and hackers to be effective. Especially using software encryption is easier to crack.

Effectively analyzing the possible ways of attack on network video surveillance is of great significance for us to deploy a more effective and safe network camera surveillance solution. In general, attacks can be divided into two main aspects. The first is the attack on data during transmission, such as interception of data during transmission, insertion of modified data, or backup of video data through transmission; On the one hand, infiltrating into image acquisition, storage or video equipment to steal confidential video information, and then process, falsify or even destroy data.

Taking Tongfang Cloud Computing as an example, it introduced a hardware security encryption solution that includes a series of products, encryption cards, keys, and industry solutions, and adopted a more secure and reliable user comprehensive authentication technology to ensure the security of the device. The user's authority is divided more closely, and all functions are hidden or displayed based on the user's type. The general user does not have control authority. The administrator user must have the corresponding key to be able to log in to the device. Secondly, at the network layer and transport layer, IPSEC encryption is used to implement device communication based on the SIP session protocol, and TLS is used to encrypt the SIP messages one by one. RSA (1024-bit, 2048-bit optional) session encryption is used during transmission. The key is encrypted, and the transmission content is encrypted using algorithms such as DES, 3DES, and AES. In addition, hardware cryptographic chips using encryption algorithms certified by the National Encryption Agency are used for image encryption and decryption in front-end image capture devices such as cameras, back-end storage decryption and display devices such as NVRs, DVRs, and VMS software. It is worth noting that this is a complete hardware encryption and decryption method, basically impossible to achieve by any means to crack. The security decryption card provided by the same party to the user must be provided with a key to implement the decryption function. Only users with secret cards and keys can access the network cameras, video preview, playback, video search, device management, and user configuration.

Conclusion

Networking is a major trend in the development of video surveillance industry. Network video surveillance solutions are changing the relatively closed analog surveillance mode based on local surveillance. Users are no longer limited to local access, access to video resources, but can access and obtain the required video remotely and easily, anytime, anywhere. Even now they face the challenges of some new technologies such as HD-SDI and other high-definition technologies. Basically, it will become the main development trend of video surveillance applications. This is undoubtedly, however, the open IP technology also brings a new technical threat, that is, the security of video data. How to ensure the security of network HD video data during video capture, transmission, decoding, playback, and video recording to achieve secure access and use, and to avoid problems such as malicious access, virus attack, malicious control, malicious tampering, and video recording caused by IP. More manufacturers are required to introduce more innovative technologies, products and solutions to address the data security problems brought about by the trend of networking.

About network monitoring

Network monitoring is for the monitoring and control of computers in the LAN, and for the internal Internet activities on the computer (Internet monitoring) and non-Internet-related internal behaviors and assets such as process management (intranet monitoring) the rapid development of the Internet, the use of the Internet More and more common, the Internet and the Internet not only serve as a bridge for communication within the company, but also serve as an important conduit for businesses and external parties to conduct various types of business transactions.