Changsha blockchain security technology testing center

3. When it comes to the nature of blockchain, several key words are familiar. For example, decentralization, distrust, consensus mechanism, asymmetric encryption, distributed accounting, tamper proof, absolute transparency, openness and so on. At the same time, some teaching posts also list the structure of blockchain, such as data layer, network layer, consensus layer, incentive layer, contract layer and application layer
however, it's easy for people with an eye to see why there is no security layer? In fact, several key features of blockchain have already solved the security problem. First, the blockchain uses asymmetric encryption technology. In fact, encryption and decryption are different keys, namely public key and private key. In short, the public key is open to the public, while the private key is absolutely confidential
secondly, distributed bookkeeping is a way for blockchain to store data. It can also be understood as distributed storage, which is consistent with the concept of decentralization. In the form of ledger, there is no central ledger in the network, and the ledger is stored in each node. Each node is not only independent, but also can act as the central node. Therefore, the central node will not be attacked, leading to the loss of core books or data, and the whole network will not be paralyzed
moreover, tamper proof is the basic feature of blockchain. As long as the chain can not be modified, and can not be deleted. If it needs to be changed, based on the principle of transparency and openness, the whole network and all nodes need to be informed. Therefore, under the democratic mechanism, the possibility of tampering with data at will is very low. Therefore, blockchain technology is applied in various instries, such as finance, payment, traceability, games, etc., such as the network "universe", Tencent's "come together to catch the demon", and Zhongan Huanyu blockchain "Dr dragon hunt" are the safe and high-quality procts under the blockchain technology.

4. I know, because I know Tencent security dominates the blockchain. Compliance is a necessary condition for the development of blockchain technology and application, and Tencent security leader has achieved this by applying Tencent level security capabilities in many aspects, such as security technology and compliance supervision, to ensure the legal compliance of activities and transactions in the chain.

5. In fact, every time there is an emerging technology rise, it is a huge opportunity for the original traditional instries and traditional enterprises. The rise of emerging technologies means the significant improvement of social benefits. For traditional enterprises, it is also a free ride to improve business efficiency. Recently, it seems that SMIC platform is recruiting service providers, and there seems to be no special restrictions on the instry. In fact, you can go to see the opportunities.

6. I think it's very appropriate for Tencent security to lead the blockchain, which helps Tencent security to have many years of security operation experience and multi-dimensional proct capabilities. Leading the blockchain technology to build city level blockchain infrastructure services, it is widely used in various instries and scenarios.. You can ask me if you don't understand

7. Decentralization, distrust, consensus mechanism, asymmetric encryption, distributed accounting, tamper proof, absolute transparency, openness and so on are the characteristics of blockchain technology. Several key features have already solved the security problem - asymmetric encryption technology (encryption and decryption are different keys, namely public key and private key). In short, the public key is public, while the private key is absolutely confidential Distributed Accounting (the ledger is stored in each node) and so on.

8. On April 3, the "2019 Internet Yuelu summit" blockchain Technology Application Forum was held in Changsha. On the spot, the "Changsha urban block chain public service platform" prepared and built by Changsha urban block chain Technology Application Instry Association (Preparatory) was officially launched. Relying on the support policies of Changsha City and other districts, it will collect application solutions for block chain instry globally, form instrial clusters, promote the development of Changsha block chain instry chain, and form regional core competitiveness in the whole country
1. Benefit from participating in the project
1. Enjoy the blockchain support policies announced by Changsha City and all districts
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4. Participate in the construction of blockchain public service projects announced by Changsha City and various districts< 2. Participation conditions: 1. Facing global enterprises and development teams
2. Independent intellectual property rights, no intellectual property disputes
3. Application scenarios: whether the projects are actually commercial in the fields of government affairs, public services and instry scenarios, and have practical significance
4. Safety: the participating projects are safe and reliable, and can pass the safety test of relevant safety professional institutions
5. Continuous operation ability: the participating enterprises and technical teams have continuous operation ability for participating projects
6. There is no state order to prohibit or ban related behaviors< Third, the overall construction plan of public service platform is divided into three stages, and the participating enterprises and technical teams can choose to join the corresponding cooperative projects according to their own actual situation. Each stage will release the theme of project cooperation direction, and the platform will also update the theme of the project according to the actual situation and needs. Participants independently design related topics according to the selected project theme to register for participation. The overall construction plan is as follows:
the first stage involves topics in the fields of electronic certificate keeping, right works registration and judicial expertise
the second stage: topics related to e-government and financial and tax management (continuous update)
the third stage: topics related to anti-counterfeiting traceability, points management and residents' health management (continuous update).

9. Tencent's security leading blockchain is very good. In terms of security technology, Lingyu blockchain can meet the needs of blockchain supervision and smart contract security protection based on cryptographic algorithm technology, program verification technology, identity authentication technology and secure computing environment. Relying on deep security protection of smart contract, Lingyu blockchain can build a blockchain supervision and smart contract security protection system, which can realize the active detection and detection of public chain vulnerabilities.. Do you understand my answer? If you don't understand, please feel free to ask questions