区块链每个人的数据是不是很大,区块链会不会泄露个人信息

近几年，随着技术的发展，区块链技术已经被广泛应用到各个领域，它不仅仅是一种记录和存储数据的手段，更是一种让数据得到安全保护的方式。但是，有人担心，区块链每个人的数据是不是很大，会不会泄露个人信息。

其实，区块链技术本身是一种安全的技术，它可以保证数据的安全性，并且不会泄露个人信息。区块链技术采用“分布式账本”的形式，数据存储在多个节点上，每个节点都有一份完整的数据，数据一旦被写入，便不可更改。因此，即使有人试图篡改或查看数据，也不可能取得成功，从而保证了数据的安全性。

此外，区块链技术还采用加密技术，以及“零知识证明”等技术，可以有效地保护个人信息，防止个人信息泄露。“零知识证明”可以证明一方拥有某种信息，但不会披露该信息的具体内容，因此可以有效地保护个人信息的安全性。

总之，区块链技术可以有效地保护个人信息安全，不会泄露个人信息。区块链技术采用分布式账本的形式，采用加密技术和“零知识证明”等技术，可以有效地保护个人信息，从而保证个人信息安全。只有把握好区块链技术的优势，才能有效地保护个人信息安全，确保个人信息的隐私性。

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『一』 Application aspects of blockchain

The main application scope of blockchain includes: digital currency, transaction settlement of financial assets, digital government affairs, and certificate anti-counterfeiting data services and other fields. Blockchain is a database technology that links data blocks in an orderly manner. Each block is responsible for recording a file data and encrypting it to ensure that the data cannot be modified or forged.

Blockchain is essentially a distributed database system that uses cryptography technology for multi-party participation, joint maintenance, and continuous growth. It is also called a distributed shared ledger. Each page in the shared ledger is a block, and each block is filled with transaction records. The anonymity, decentralization, openness, transparency, and non-tamperability of blockchain technology make it highly favored by enterprises and has gained More extensive application attempts.

Blockchain application scope 1. Financial field

Blockchain can provide a trust mechanism and has the potential to change the financial infrastructure. Various financial assets such as equity, bonds, bills, warehouse receipts, fund shares, etc. It can be integrated into the blockchain technology system and become a digital asset on the chain, which can be stored, transferred and traded on the blockchain.

The decentralization of blockchain technology can reduce transaction costs and make financial transactions more convenient, intuitive and secure. The combination of blockchain technology and the financial industry will inevitably create more and more business models, service scenarios, business processes and financial products, thereby bringing more impact to the development of financial markets, financial institutions, financial services and financial formats. . With the improvement of blockchain technology and the combination of blockchain technology with other financial technologies, blockchain technology will gradually adapt to the application of large-scale financial scenarios.

2. Public service field

Traditional public services rely on limited data dimensions, and the information obtained may not be comprehensive enough and have a certain lag. The non-tamperable nature of the blockchain makes the digital certification on the chain highly credible. It can be used to establish new authentication mechanisms in the fields of property rights, notarization and public welfare, and improve the management level of public services.

Relevant information in the public welfare process, such as donation projects, fundraising details, fund flows, recipient feedback, etc., can be stored on the blockchain to meet the privacy protection of project participants and other relevant laws and regulations. Under the premise of requirements, public disclosure will be made conditionally to facilitate public and social supervision.

3. Information security field

Using the traceability and non-tampering characteristics of blockchain, we can ensure the authenticity of data sources and ensure the non-forgery of data. Blockchain technology will fundamentally change information Security issues of the propagation path.

Blockchain is reflected in the following three points in the field of information security:

User identity authentication protects data integrity and effectively prevents DDoS attacks

The distributed storage architecture of blockchain will make Hackers are at a loss as to what to do. Some companies have begun to develop a distributed Internet domain name system based on blockchain to eliminate the root cause of the current DNS registration shortcomings and make the network system cleaner and more transparent.

4. Internet of Things field

Blockchain + Internet of Things, which allows each device on the Internet of Things to operate independently, and the information generated by the entire network can be guaranteed through the smart contract of the blockchain.

Security: Traditional IoT devices are highly vulnerable to attacks, data loss and maintenance costs are high. Typical information security risk issues for IoT devices include low firmware versions, lack of security patches, permission loopholes, too many device network ports, and unencrypted information transmission. The blockchain's consensus mechanism for network-wide node verification, asymmetric encryption technology and distributed data storage will significantly reduce the risk of hacker attacks.

Trustability: The traditional Internet of Things is managed and controlled by a centralized cloud server. Due to the security of the device and the opacity of the centralized server, it is difficult to effectively protect user privacy data. The blockchain is a distributed account book. Each block is interconnected and has its own independent working ability, ensuring that the information on the chain will not be tampered with at will. Distributed ledgers can therefore provide trust, ownership records, transparency and communication support for the Internet of Things.

Effectiveness: Limited by cloud services and maintenance costs, the Internet of Things is difficult to achieve large-scale commercial use. The traditional Internet of Things realizes communication between things through centralized cloud servers. The disadvantage of this model is that as the number of access devices increases, the server faces more load, requiring enterprises to invest a lot of money to maintain the normal operation of the IoT system.

Blockchain technology can directly realize point-to-point transactions, omitting the labor expenditure of other intermediaries or personnel, which can effectively reduce the costs incurred by third-party services and maximize benefits.

5. Supply chain field

The supply chain consists of many participating entities, with a large amount of interaction and collaboration. Information is discretely stored in their own systems, lacking transparency. The lack of smooth information makes it difficult for various participating entities to accurately understand the real-time status and existing problems of related matters, affecting the collaborative efficiency of the supply chain. When disputes arise between parties, it is time-consuming and laborious to provide evidence and pursue accountability.

Blockchain can make data open and transparent among various entities, thereby forming a complete, smooth, and non-tamperable information flow throughout the entire supply chain. This can ensure that all entities promptly discover problems arising during the operation of the supply chain system and find targeted solutions, thus improving the overall efficiency of supply chain management.

6. Automotive Industry

Last year announced a partnership using blockchain to build a proof of concept to streamline the car rental process and build it into a “click, sign up, and drive” process. Future customers choose what they want The rented car enters the public ledger of the blockchain; then, sitting in the driver's seat, the customer signs the rental agreement and insurance policy, and the blockchain updates the information simultaneously. This is not an imagination, for car sales and car registration Said, this type of process may also develop into reality.

7. Stock Trading

For many years, many companies have worked to make the process of buying, selling, and trading stocks easy. Emerging Blockchain Chain startups believe that blockchain technology can make this process more secure and automated than ever before.What solution is there? At the same time, blockchain startup Chain is cooperating with Nasdaq to realize the equity transfer of private companies through blockchain

8. Government management

Government information, project bidding and other information are open and transparent ,Government work usually attracts public attention and supervision. Since blockchain technology can ensure the transparency and immutability of information, it plays a great role in the implementation of transparent government management. There is a certain degree of information opacity in government project bidding, and companies also have the risk of information leakage during the sealed bidding process. Blockchain can ensure that bidding information cannot be tampered with, and can ensure the transparency of information, forming a shared trust among competitors who do not trust each other. And it can arrange subsequent smart contracts through the blockchain to ensure the construction progress of the project and prevent the growth of corruption to a certain extent.

There are many more applications of blockchain technology, and this is just a fulcrum of blockchain applications. In the future, blockchain technology will be applied in various places

『二』Blockchain Information Service Management Regulations

The first article is to standardize blockchain information services activities, safeguard national security and social public interests, protect the legitimate rights and interests of citizens, legal persons and other organizations, and promote the healthy development of blockchain technology and related services, in accordance with the "Cybersecurity Law of the People's Republic of China", "Internet Information Services Management Measures" and The "Notice of the State Council on Authorizing the Cyberspace Administration of China to Responsible for the Management of Internet Information Content" formulates these regulations. Article 2 Those engaged in blockchain information services within the territory of the People's Republic of China must comply with these regulations. If laws and administrative regulations provide otherwise, such provisions shall prevail. The term “blockchain information services” as mentioned in these regulations refers to the provision of information services to the public through Internet websites, applications, etc. based on blockchain technology or systems. The term "blockchain information service provider" as mentioned in these regulations refers to the entities or nodes that provide blockchain information services to the public, as well as the institutions or organizations that provide technical support to the entities of blockchain information services; the term "blockchain" as mentioned in these regulations refers to Chain information service users refer to organizations or individuals who use blockchain information services. Article 3 The Cyberspace Administration of China shall be responsible for the supervision, management and law enforcement of blockchain information services nationwide in accordance with its duties. The Internet Information Offices of provinces, autonomous regions, and municipalities directly under the Central Government are responsible for the supervision, management and law enforcement of blockchain information services within their respective administrative regions according to their responsibilities. Article 4 encourages blockchain industry organizations to strengthen industry self-discipline, establish and improve industry self-discipline systems and industry standards, guide blockchain information service providers to establish and improve service specifications, promote the construction of industry credit evaluation systems, and supervise blockchain information service providers Provide services in accordance with the law, accept social supervision, improve the professional quality of blockchain information service practitioners, and promote the healthy and orderly development of the industry. Article 5 Blockchain information service providers shall implement information content security management responsibilities and establish and improve management systems for user registration, information review, emergency response, and security protection. Article 6 Blockchain information service providers should have technical conditions suitable for their services.Information content prohibited by administrative regulations should have immediate and emergency response capabilities for its release, recording, storage, and dissemination, and technical solutions should comply with relevant national standards and regulations. Article 7 Blockchain information service providers should formulate and disclose management rules and platform conventions, sign service agreements with blockchain information service users, clarify the rights and obligations of both parties, and require them to promise to abide by legal regulations and platform conventions. Article 8 Blockchain information service providers shall, in accordance with the provisions of the "Cybersecurity Law of the People's Republic of China", collect the real identity information of blockchain information service users based on organizational codes, ID number or mobile phone number, etc. Certification. If users do not authenticate their real identity information, blockchain information service providers shall not provide relevant services for them. Article 9 If a blockchain information service provider develops and launches new products, new applications, or new functions, it shall report to the national and provincial, autonomous region, or municipality Internet Information Office for security assessment in accordance with relevant regulations. Article 10 Blockchain information service providers and users shall not use block chain information services to engage in activities that endanger national security, disrupt social order, infringe upon the legitimate rights and interests of others, or other activities prohibited by laws and administrative regulations, and shall not use block chain information services to produce , copy, publish, and disseminate information content prohibited by laws and administrative regulations. Article 11 Blockchain information service providers shall fill in the name, service category, service form, and application of the service provider through the Blockchain Information Service Registration Management System of the Cyberspace Administration of China within ten working days from the date of provision of services. Domain, server address and other information, and complete the filing procedures. If a blockchain information service provider changes its service items, platform URL, etc., it shall go through the change procedures within five working days from the date of change. If a blockchain information service provider terminates its services, it shall go through the cancellation procedures thirty working days before terminating its services and make appropriate arrangements. Article 12 After receiving the filing materials submitted by the filing party, the national and provincial, autonomous region, and municipality Internet Information Offices shall, if the materials are complete, be filed within twenty working days, issue a filing number, and pass the filing through the State Internet Information Office District The blockchain information service filing management system publishes filing information to the public; if the materials are incomplete, the filing will not be granted, and the filing person will be notified within twenty working days and the reasons will be explained. Article 13 Blockchain information service providers that have completed registration shall indicate their registration number in a prominent position on the Internet websites, applications, etc. that provide services to the outside world. Article 14 The Internet Information Office of the state and provinces, autonomous regions, and municipalities directly under the Central Government shall conduct regular inspections of blockchain information service registration information. Blockchain information service providers shall log in to the blockchain information service registration management system within the specified time and provide relevant information. Article 15 If the blockchain information services provided by a blockchain information service provider have potential information security risks, they must make rectifications and comply with laws, administrative regulations and other relevant provisions and relevant national standards before they can continue to provide information services. Article 16 Blockchain information service providers shall respond to violations of laws, administrative regulations and servicesUsers of the blockchain information services of the agreement shall take warnings, restrict functions, close accounts and other disposal measures in accordance with the law, take corresponding measures to deal with illegal information content in a timely manner, prevent the spread of information, save relevant records, and report to the relevant competent authorities . Article 17 Blockchain information service providers shall record information such as content and logs released by blockchain information service users, record backups shall be kept for no less than six months, and shall be provided when relevant law enforcement authorities inquire according to law. Article 18 Blockchain information service providers shall cooperate with the supervision and inspection implemented by the cybersecurity and informatization department in accordance with the law, and provide necessary technical support and assistance. Blockchain information service providers should accept social supervision, set up convenient complaint and reporting portals, and handle public complaints and reports in a timely manner. Article 19 Blockchain information service providers violate Article 5, Article 6, Article 7, Article 9, Article 11, Paragraph 2, Article 13, Article 15, Article 10 of these Regulations As stipulated in Articles 7 and 18, the national and provincial, autonomous region, and municipal Internet information offices shall give a warning in accordance with their duties and order them to make corrections within a time limit. The relevant business shall be suspended before making corrections; those who refuse to make corrections or the circumstances are serious shall be fined 5,000 yuan. A fine of not less than 30,000 yuan but not more than 30,000 yuan shall be imposed; if a crime is constituted, criminal liability shall be pursued in accordance with the law. Article 20 If a blockchain information service provider violates the provisions of Articles 8 and 16 of these Regulations, the Internet Information Office of the country and provinces, autonomous regions, and municipalities directly under the Central Government shall, in accordance with their duties and in accordance with the provisions of the Cybersecurity Law of the People's Republic of China, be processed. Article 21 If a blockchain information service provider violates the provisions of Article 10 of these Provisions by producing, copying, publishing, or disseminating information content prohibited by laws and administrative regulations, the Internet Information Office of the country, provinces, autonomous regions, and municipalities directly under the Central Government shall, on the basis of Responsibilities include giving a warning and ordering correction within a time limit, and relevant business should be suspended before correction; if the violation is refused or the circumstances are serious, a fine of not less than RMB 20,000 but not more than RMB 30,000 will be imposed; if a crime is constituted, criminal liability shall be pursued in accordance with the law. If users of blockchain information services violate the provisions of Article 10 of these Provisions and produce, copy, publish, or disseminate information content prohibited by laws and administrative regulations, the national and provincial, autonomous region, and municipality Internet Information Offices shall, in accordance with relevant laws and administrative regulations, regulations will be dealt with. Article 22 If a blockchain information service provider violates the provisions of Article 11, Paragraph 1 of these Regulations, fails to perform registration procedures in accordance with these Regulations or fills in false registration information, the Internet Information Office of the country, province, autonomous region, or municipality directly under the Central Government shall In accordance with their duties, they shall be ordered to make corrections within a time limit; if they refuse to make corrections or the circumstances are serious, they shall be given a warning and fined not less than RMB 10,000 but not more than RMB 30,000. Article 23 Those who engage in blockchain information services before the promulgation of these regulations shall complete relevant procedures in accordance with these regulations within twenty working days from the date when these regulations come into effect. Article 24 These regulations will come into effect on February 15, 2019.

『三』 What do you need to obtain when transferring money to a certain person on the blockchain?

What do you need to obtain when transferring money to a certain person on the blockchain? address. When transmitting information in the blockchain, you need to receiveThe person's address is then encrypted using the received public key.

『四』 Blockchain has been flying all over the world recently, and personal information has been seriously leaked. Will it bring danger to future life?

A huge hot topic in 2018 is none other than blockchain. Well, many blockchain apps have appeared since February. Of course, some of these blockchain companies have real technology and appropriate application scenarios; some companies use the popularity of blockchain technology to sell mining machines and routers.

After all, the blockchain technology has just begun to develop. I believe that when it matures, it will ensure the security of everyone's personal information.

『Wu』How to explain what blockchain is?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system
[1]
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Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. The blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of its information (anti-counterfeiting) and generate the next block.
Let’s talk about the social or economic significance of blockchain. Many technologies in the past were actually dedicated to "productivity", such as artificial intelligence, which is an advancement in productivity. The blockchain has greatly improved production relations and is dedicated to production relations. So why do you say that?
Because the so-called production relations are actually how business is done between people and business partners. And these things are originally in the process of people's mutual cognition, and no special procedures are used to program or quantify them.
For example, if you and I are good friends now, we can do business. If someone provokes our relationship and we are no longer good friends, we will not do business. Even if we can make money by doing business, we will not do it. , because everyone no longer has any trust in each other.
As for the blockchain, it is actually because the data has been certified by various nodes and backed up at the same time, so my data is as authentic as possible and cannot be tampered with. So in this case, you believe my data, On this basis, you can create a program, and then program the "production relations" of what kind of business contracts and business cooperation this data can be used for. In this way, everyone believes in the data and the program compiled by the algorithm. And because you believe in the data and the program, you can develop various APPs based on this program. These APPs are the relationship of production and what kind of business you are going to do. This is: Blockchain is actually a reconstruction of "production relations".

『Lu』 The definition of blockchainWhat is

Blockchain is a term in the field of information technology and is a shared database.

From a technological perspective, blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming. From an application perspective, simply put, blockchain is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency.

These characteristics ensure the "honesty" and "transparency" of the blockchain and lay the foundation for the blockchain to create trust. The rich application scenarios of blockchain are basically based on its ability to solve the problem of information asymmetry and achieve collaborative trust and consistent action among multiple subjects. Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

Applications

Blockchain has potentially huge application value in financial fields such as international exchange, letters of credit, equity registration and stock exchanges. The application of blockchain technology in the financial industry can eliminate the need for third-party intermediaries and achieve direct point-to-point connection, thereby greatly reducing costs and quickly completing transaction payments.

Reference for the above content: Network - Blockchain

『撒』 How to check other people’s blockchain information

1. If you are checking account balance, account For historical transaction data and other information, it is recommended to directly enter the wallet address to query; if you are querying relevant information about a certain transfer, such as whether it has been received and how the progress is, it is most convenient to enter the transaction ID. Of course, the blockchain browser can not only query your own account, but also query all contacts of other people's accounts: display all contact addresses/tags with transaction records, addresses with more than 10,000 transactions, and take the most recent 1 Contact display for 10,000 transactions In summary, SixPencer’s new asset tracking and management tool can provide more comprehensive query and analysis functions than a blockchain browser or wallet. As a tool product, it is intended to assist users.
2. It can be queried through the blockchain browser. In the blockchain browser, we can know what transactions a wallet address has conducted, how many assets are on the account, etc. You can view it with a blockchain browser. Enter the wallet address you want to query in the search input box. If the address you enter is incomplete, but this address has been ETH traded or queried on the blockchain before, the input box will automatically query it for you

『8』 What is blockchain in simple terms

Blockchain is a term in the field of information technology. Essentially, it is a shared database. The data or information stored in it has the characteristics of "unforgeability", "whole process traceability", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid foundation of "trust" and created a reliable "cooperation" mechanism, which has broad application prospects.
2019On January 10, 2019, the State Internet Information Office issued the "Blockchain Information Service Management Regulations". Blockchain has entered the public eye and become the focus of society. From a technological perspective, blockchain involves many technological issues such as mathematics, cryptography, the Internet, and computer programming.
Extended information:
From an application perspective, in short, blockchain is a distributed shared ledger and database, which is decentralized, non-tampering, traceable, traceable, and collective. Maintenance, openness and transparency. These characteristics ensure the "honesty" and "transparency" of the blockchain and lay the foundation for establishing trust in the blockchain. The rich application scenarios of blockchain are basically based on the fact that blockchain can solve the problem of information asymmetry and achieve cooperation, trust and coordinated action among multiple entities.
Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism and encryption algorithm. Blockchain is an important concept of Bitcoin. Essentially, it is a decentralized database. At the same time, as the underlying technology of Bitcoin, it is a series of data blocks associated with cryptographic methods. Each data block contains a batch of Bitcoin network transaction information to verify the validity of its information (anti-counterfeiting) and generate the next data block [8]. In fact, the word blockchain does not appear in the original English Bitcoin white paper, but blockchain. In the Chinese translation of the earliest Bitcoin white paper [9], blockchain was translated into blockchain language. This is the earliest time when the Chinese word "blockchain" appeared.

『玖』 Blockchain information service refers to

Blockchain information service refers to a service model that uses blockchain technology to provide information services.
Blockchain technology is a distributed accounting technology that can store information on the blockchain and make the information non-tamperable and traceable by encrypting and hashing the information. Therefore, blockchain information services can be used to provide credible and reliable information services.
Blockchain information services have a wide range of specific application areas and can be used to provide various information services, such as identity authentication, data storage, trade records, etc. For example, in the field of identity authentication, blockchain technology can be used to store users’ identity information to achieve fast and secure identity authentication. In the field of data storage, blockchain technology can be used to store various data, making the data trustworthy and reliable. In the field of trade records, blockchain technology can be used to store trade records, making trade records non-tamperable and traceable.
In general, blockchain information service is a service model that uses blockchain technology to provide information services. It has the advantages of reliable information storage, non-tampering, and traceability. Blockchain information services have a wide range of applications and can be used to provide various information services, such as identity authentication, data storage, trade records, etc.
In actual use, blockchain information services also have some problems. For example, the current processing power of blockchain technology is still limited and cannot be processed as quickly as traditional databases.Large amounts of data. In addition, blockchain information services also need to solve issues such as data privacy protection and legal compliance. However, with the continuous development of blockchain technology, these problems will gradually be solved.