Shulou(Shulou.com)06/01 Report--

This article introduces the relevant knowledge of "what is the technology of blockchain". In the operation of practical cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Definition of block chain

Blockchain 2018 white paper is defined as follows: 1. The broad definition is that blockchain is a technical system that stores data in a block structure, is maintained by many parties, and uses cryptography to ensure transmission and access. It represents a decentralized recording technology behind the current hot Bitcoin and Ethernet Square. 2. In a narrow sense, when talking about block chain with specific products, it refers to the chained data storage mode connected by block chain.

The official definition and the textbook concept definition, we always have to speculate carefully in order to understand the true inner meaning. Let me give a case of bookkeeping, which is popular on the Internet. Suppose there are five objects A, B, C, D and E, and each object has a path to the other four objects.

Blockchain technology is essentially a kind of database technology, specifically a kind of account book technology. The ledger records the changes in the assets and transactions of one or more accounts. In fact, it is a database with the simplest structure. The running accounts we usually write down in the notebook and the statements sent by the bank are typical books. " Wang Jun, chief researcher of Tencent Financial Technology think-tank, said that security is a major feature of blockchain technology, which is mainly reflected in two aspects: first, the distributed storage architecture, the more nodes, the higher the security of data storage; the second is its ingenious design of tamper-proof and decentralization, which makes it difficult for anyone to modify data without rules.

Investment and financing of "Block chain"

Although the decentralized credit mechanism of blockchain technology can better solve the problem of value exchange around the world, it has received active attention from all parties and has the potential to become the next generation Internet basic protocol to a certain extent. however, from the current actual operation, there are still the following limitations.

First, the problem of waste of computing power in the whole network

In the blockchain system, all nodes need to do a lot of operations to verify the validity of the transaction, but only the block data provided by the nodes that first complete the operation verification can be regarded as new and legal blocks and get corresponding rewards, while the blocks and foreign exchange www.gendan5.com generated by other nodes participating in the operation at the same time have no effect, so it wastes the computing power of the whole network to a large extent.

II. Transaction processing capacity

On the one hand, as mentioned earlier, the current capacity of a single block is small and contains a small number of transactions, that is, the transaction processing capacity under the block chain mode may be relatively weak.

On the other hand, the current practical application of blockchain is still relatively few, and even the most mature Bitcoin application has limited transaction scale. therefore, the mode of operation of its network-wide transmission and storage has not had a substantial impact on the transmission efficiency and storage capacity of the existing network. Once the application of blockchain is further popularized and the transaction scale increases rapidly in the future, it may pose a great challenge to the transmission efficiency and storage space of the whole network.

Third, the security of the core algorithm

The de-trust basis of blockchain technology is mainly based on mathematical algorithms and encryption technology. although the current highest-level and highest-strength algorithm mechanism is adopted and has not been breached in the past seven years, it can not guarantee eternal security. At present, theoretical studies have shown that after the emergence of quantum computers in the future, the core algorithm of blockchain technology can be cracked in a relatively short time, which poses a great challenge to its trust foundation.

1. Distributed ledger: to put it simply, a distributed ledger is a database of assets shared by multiple people.

two。 Asymmetric encryption is a method of key secrecy, which is characterized by complex algorithm strength, strong security and slow decryption speed.

3. Consensus mechanism block chain transaction algorithm to reach distributed consensus. Blockchain is a decentralized distributed ledger system, which can be used to register and issue digital assets, property rights vouchers, points, etc., and transfer, pay and trade in a peer-to-peer way. Compared with the traditional centralized account system, the blockchain system has the advantages of complete disclosure, untamperability, prevention of multiple payments, and does not rely on any trusted third party.

4. Intelligent contract

5. Point-to-point transmission

Peer-to-peer technology (peer-to-peer, referred to as P2P), also known as peer-to-peer Internet technology, is a new network technology, which depends on the computing power and bandwidth of the participants in the network, rather than gathering the dependencies on a few servers.

This is the end of the content of "what is the technology of blockchain"? thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.