区块链的模型架构,区块链功能模块

近年来，随着区块链技术的发展，越来越多的企业开始将其应用于实际场景中。那么，区块链到底是什么？今天，我们就来聊聊区块链的模型架构和功能模块。

区块链是一种分布式数据库，它使用密码学技术，将数据分布在多个节点上，每个节点都可以访问数据，并且每个节点都可以安全地对数据进行更新。区块链的模型架构主要包括：

网络架构：网络架构是指区块链网络的组成部分，包括节点、网络和协议等。它们共同组成了一个安全可靠的分布式网络，可以支持数据的存储和传输。

共识机制：共识机制是指区块链网络中使用的一种技术，它的目的是为了防止网络中的数据被篡改，确保数据的安全和可靠性。

加密算法：加密算法是指在区块链网络中使用的一种技术，它的目的是为了保护数据的安全性，确保数据不被篡改。

存储机制：存储机制是指在区块链网络中使用的一种技术，它的目的是为了确保数据的存储和传输的安全性，以及数据的可靠性。

除了上述模型架构，区块链还有一些功能模块，它们可以帮助企业构建可靠的分布式网络：

身份认证：身份认证是指在区块链网络中使用的一种技术，它的目的是为了验证网络中的用户身份，确保网络中的数据安全。

智能合约：智能合约是指在区块链网络中使用的一种技术，它的目的是为了实现自动执行合约，确保双方的权利和义务得到有效的保障。

去中心化应用：去中心化应用是指在区块链网络中使用的一种技术，它的目的是为了实现去中心化的应用，确保数据的安全性和可靠性。

以上就是区块链的模型架构和功能模块，它们可以帮助企业构建可靠的分布式网络，实现安全可靠的数据存储和传输。

❶ What are the different types of blockchains

The different types of blockchains are as follows

1. Divided by degree of openness: public chain, alliance Chain, private chain

2. Divide by application scope: basic chain, industry chain
There is a saying that currency is about consensus, and chain is about ecology.

3. Divide by original program: original chain, forked chain
This division may be more niche, and maybe there is such an understanding

Four , divided according to the degree of independence: main chain, side chain
There is another way to divide the blockchain according to whether the blockchain is independent enough.

5. Division by hierarchical relationship: parent chain, sub-chain
The last division method is also relatively niche, and let’s give a simple definition.

❷ What are the main modules included in blockchain technology

Jinwowo Network Technology analysis believes that blockchain technology includes four main modules, which can improve the efficiency and effectiveness of the entire business network. cut costs. Functions that enable blockchain to trust businesses include:
1. Consensus, as all parties must agree to the network to verify transactions.
2. Immutability, because anything written on the distributed ledger cannot be changed.
3. Source, because there is a record of where each asset is.
4. Privacy, as permissions and identities ensure appropriate visibility of transactions.

❸ Blockchain, 4 types, how much do you know

——Hello, I am mentality, focusing on sharing my understanding of blockchain and investment thinking. hope this helps.

Based on different usage requirements and scenarios, blockchain is divided into 4 types: public chain, alliance chain, private chain and hybrid chain.

1. Public chain

Public chain means that anyone at any node in the world and at any geographical location can enter the system to read data, send transactions, and compete. Blockchain that participates in consensus such as accounting. No institution or individual can tamper with the data in it, so the public chain is completely decentralized.

Bitcoin and Ethereum are both representatives of public chains. Public chains generally encourage participants to compete for accounting (i.e. mining) by issuing tokens to ensure data security and consensus updates.

Bitcoin generates one block every 10 minutes on average, and its POW mechanism is difficult to shorten the block time. The POS mechanism can shorten the block time relatively speaking, but it is more likely to cause forks. So the transaction needs to wait for more confirmations before it is considered safe.

It is generally believed that a block in Bitcoin is secure enough after 6 confirmations, which takes about an hour. Such a confirmation speed is difficult to meet commercial-level applications. Therefore, companies such as ETH and EOS that support more writing speedsYouchain is constantly developing.

2. Alliance chain

Alliance chain refers to a blockchain that is jointly participated and managed by several institutions, with each institution running N nodes.

The data of the alliance chain only allows different institutions in the system to read, write and trade. The PKI-based identity management system transactions or proposals are initiated through digital certificates and are verified by the joint signature of the participants. A consensus is reached, so there is no need for proof of work (POW), and there is no digital currency (token), which improves the efficiency of transaction completion and saves a lot of computing costs (computing hardware investment and electricity energy consumption).

Normally, nodes participating in the alliance chain will be divided into different read and write permissions, which can support more than 1,000 data writes per second.

3. Private chain

Unlike the public chain, which is completely decentralized, the private chain’s access rights are controlled by an organization, and the participation qualifications of each node are controlled by the organization. Authorization control.

Since the participating nodes are limited and controllable, private chains often have fast processing speeds and can support more than 1,000 data writes per second, while reducing the transaction costs of internal nodes.

Nodes can participate under real names and therefore have financial attributes to confirm identity. The value of the private chain is mainly to provide a safe, traceable, non-tamperable, and automatically executed computing platform, which can prevent both internal and external security attacks or tampering of data, which is difficult to achieve in traditional systems.

The application scenarios of private chains are generally within enterprises, such as inventory management of branches, summary statistics of data from various places, etc. It can also be used in areas that can be supervised by the public, such as government budgeting and execution. Large financial groups are also currently inclined to use private chain technology.

4. Hybrid chain

When the respective advantages of public and private chains are combined, a hybrid chain will appear. The development of hybrid chains is difficult, but the prospects are broad.

In the future market, there will definitely be giant companies that develop underlying technologies and protocols. These giant companies will set up public chains, private chains or alliance chains for different purposes, based on performance and security. and the different needs of application scenarios, and then grafted on applications in different industries. For example, a communication public chain that supports high concurrency, a payment alliance chain that focuses on security, etc.

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❹ A blockchain can be divided into at least three layers. What are the three layers?

Jinwowo Network Technology analyzes the key points of blockchain layering as follows:

The lowest layer is some common basic modules, such as basic encryption algorithms, network communication library, stream processing, thread encapsulation, message encapsulation and decoding, system time, etc.;

The middle layer is the core module of the blockchain, which generally contains the main logic of the blockchain, such as P2P network protocol, consensus module, transaction processing module, transaction pool module, simple contract or smart contract module, embedded database processing module, wallet module, etc.;

The top layer is often based on The interaction module of Json Standard RPC, based on Json-RPC, we can also make a better UI interface, or it can be a web-service.

❺ The classification of blockchain according to the network includes

Legal analysis: In this application stage, people try to use blockchain to subvert the lowest level protocol of the Internet, and try to The application of blockchain technology to the Internet of Things will bring the entire society into the era of intelligent Internet and form a programmable society. According to the scope of the network, it can be divided into public chain, private chain and alliance chain. The so-called public means that it is completely open to the outside world, and anyone can use it at will. There is no permission setting, and there is no identity authentication. Not only can you participate and use it at will, but all the data that occurs can be viewed at will, and it is completely open and transparent.

Legal basis: "Blockchain Information Service Management Regulations" Article 2 Those who engage 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 information services provided to the public through Internet websites, applications, etc. based on blockchain technology or systems.

❻ The classification of blockchain according to the network includes

Legal analysis: The classification of blockchain according to the scope of the network includes public chain, alliance chain and private chain, as follows: < p>1. Public chain: It mainly refers to a setting deployed within the Internet. There is no special permission setting, and there are no other conditions for login. Anyone can directly download the node and use it. You can also directly connect to a node through a client. There are no restrictions, and the data in it can also be accessed arbitrarily;

2. Alliance chain: It is an alliance network composed of several node members. , this type is mainly used in business environments, such as between multiple businesses, government affairs, banking, taxation, etc. They can jointly form an alliance to serve a specific scenario, such as enterprises An alliance network can be formed with its customers, suppliers, etc. Compared with the public chain, the alliance chain generally has an identity authentication, and not everyone can directly connect to the alliance chain. This network has identity authentication and more protection for data;

3. Private chain: more within the enterprise, such as a group enterprise, between its various departments, among its subsidiaries, from thisFrom this perspective, one of the main differences between these three types is the difference in network deployment based on different application scenarios and the distribution range of a network. It is a flexible concept. There are three differences between the three. A division based on different network scopes and application scenarios is not a strict definition.

Legal basis: "Cybersecurity Law of the People's Republic of China"

Article 1 is to ensure network security, safeguard cyberspace sovereignty and national security, and social and public interests, protect the legitimate rights and interests of citizens, legal persons and other organizations, and promote the economy This law is formulated for the healthy development of social informatization.

Article 2 This Law shall apply to the construction, operation, maintenance and use of networks within the territory of the People's Republic of China, as well as the supervision and management of network security.