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1. Blockchain technology
Blockchain technology is called distributed ledger technology. It is an Internet database technology that is characterized by decentralization, openness and transparency. , allowing everyone to participate in database recording.
Blockchain technology will be applied to credit reporting, transaction security and information security in the financial industry. Financial data security, information privacy and network security are suitable for distributed block technology. Blockchain can form point-to-point digital value transfer in finance, thus improving the security of transmission and transactions.
Domestic blockchain technology companies started late, but there are many ICO projects and they are developing very rapidly. Currently, the well-known blockchain technology companies include Yingtang Zhongchuang, Feifang Sentian Integrity, and Luyi Tong et al.
In these well-known companies, token prices vary, but those that use blockchain technology for commercial applications, such as Yingtang Zhongchuang in Shenzhen, develop commercial application technology and use blockchain The chain commodity Internet of Things comprehensive service platform is the core, providing enterprises and consumers with more competitive production management, warehousing management, anti-counterfeiting traceability, precision marketing and other services.
With the increase of ICO projects, supervision will inevitably follow the trend. Therefore, whether it is well-known or unknown, only by truly applying technology and applying blockchain technology to commercial applications can we truly succeed. More long-term.
2. What are the companies with blockchain technology and decentralized technology in Shenzhen that I would like to apply for? Thank you for the expert answer
The trust and security issues of transactions that blockchain mainly solves , proposed four technological innovations: distributed ledger, symmetric encryption and authorization technology, consensus mechanism, and smart contract. It can be applied to insurance, real estate, law, art and other industries, and you can start from these aspects.
3. What are the blockchain technologies?
The concept of blockchain can be said to be very popular. At the Internet Finance Summit, no one said that blockchain technology is out. What is blockchain technology?
Blockchain technology can be either a public classification (anyone can see it) or a permissioned network (only permissioned people can see it), solving supply chain challenges. Because it is An immutable record, so it is shared among network participants and updated in real time.
Blockchain technology - data layer: Designing the data structure of the account book
Core technology 1. Block_ _;Chain:
Technically, a block is a data structure that records transactions, reflecting the capital flow of the transaction. The transaction blocks that have been reached in the system are connected to form the main chain, and all nodes participating in the calculation are It records the main chain or a part of the main chain.
Each block is composed of a block header and a block body. The block body is only responsible for recording all transaction information in the previous period, mainly including transaction quantity and transaction details. The block header includes The current version number, the previous block address, timestamp (record the time when the block was generated, accurate to seconds), random number (record the answer value to the mathematical problem related to decrypting the block), the target hash value of the current block, MerkInformation such as the root value of le number source mill. From a structural point of view, most functions of the blockchain are implemented by the block header.
Core technology 2. Hash function:
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The hash function can convert data of any length from the Hash algorithm to a fixed-length code. The principle is a one-way hash function based on cryptography. This function is easy to verify, but difficult to interpret. The industry usually Expressed in the form of y=hash(x), this hash function implements the hash value y of the operation x.
Commonly used hash algorithms include MD5, SHA-1, SHA-256, SHA- 384, SHA-512, etc. Taking the SHA256 algorithm as an example, input any data into SHA256 and you will get a 256-bit Hash value (hash value). Its characteristics: the same data input will get the same result. The input data changes a little (for example , 1 becomes 0) will get completely different results, the results are measured. The forward calculation (the Hash value corresponding to the data calculation) is very simple. The reverse calculation is extremely difficult and is considered impossible under the current scientific and technological conditions.
Core technology 3. Merkle tree:
Merkle tree is a hash binary tree that can quickly verify the integrity of large-scale data. In the blockchain network, Merkle_黄髂jumimifu The sculls and weapons are the erkle trees.
Core technology 4. Asymmetric encryption algorithm:
Asymmetric encryption algorithm is a key confidentiality method that requires a key and a key. The public key and the private key are a pair. If you use the public key to encrypt data, you can only use the corresponding key. Decrypt the private key to obtain the corresponding data value. If you use the private key to sign the data, you can only use the corresponding public key to verify the signature. The sender of the verification information is the owner of the private key.
Due to encryption and decryption Using two different keys, the algorithm is called an asymmetric encryption algorithm, while symmetric encryption uses the same key in the encryption and decryption processes.
Blockchain Mitigation Technology - Network Layer: Implementing Charging Centralization of nodes
Core technology 5, P2P network:
P2P network (peer-to-peer network), also known as point-to-point technology, is an Internet system without a central server and user groups exchanging information . Different from the central network system with a central server, each client of the peer-to-peer network is a node and also has the function of a server. Domestic Xunlei software uses P2P technology. The P2P network has the characteristics of centralization and reinforcement.
< p>Blockchain technology - consensus layer: allocate the task load of charging nodes4. Blockchain employment direction and prospects
Financial field: Blockchain technology can be used for digital currency , smart contracts, payment and settlement, etc., bringing more efficient, secure and convenient services to the financial field.
In the field of Internet of Things: Blockchain technology can realize identity verification and secure communication of Internet of Things devices.information and data management, thereby improving the security and reliability of the entire IoT system.
Public service fields: Blockchain technology can be applied to public service fields such as government affairs, education, and medical care, and plays an important role in information sharing, data privacy protection, and social governance.
Other fields: Blockchain technology can also be used in supply chain management, intellectual property protection, games and other fields, and has broad application prospects.
Therefore, from the perspective of employment direction, blockchain technology talents can choose to work in different types of units such as financial institutions, technology companies, innovative enterprises, government agencies, etc., and engage in blockchain technology Development, application research, technical support, project management and other related work. At the same time, you can also expand your career development path through entrepreneurship and other methods.
