Central China blockchain training

1. Recommend Hong Kong Institute of international new economy chain energy institute
in order to better promote the application of blockchain in real economy, Hong Kong Institute of international new economy has arranged "chain energy institute" + "chain energy capital" + "chain energy instry alliance", and established an ecological environment of self-development and self evolution of chain energy economy
chain energy college is an academic research and ecational institution focusing on economic theory, business model research and chain energy training ecation. It is the "brain" and theoretical pioneer of chain energy economy
the Hong Kong International New Economy Research Institute was officially established in Hong Kong on June 7, 2018. It is a comprehensive scientific research service institution. Its research fields include research on the integration and application of global blockchain and big data technology, research on the integration and application of global blockchain and artificial intelligence technology, Research on regulatory policies, laws and regulations of blockchain, research on the development of China's blockchain instry, research on the integration and application of global blockchain and artificial intelligence technology The practical application of blockchain technology. With the help of research and judgment on the trend of new economy, research results and promotion experience, the Hong Kong Institute of international new economy has proposed the forward-looking theoretical system of "chain energy economy" for the first time, which is committed to providing the popularization and relevant solutions of the theoretical system of financial new economy, blockchain technology and "chain energy economy" for government regulators and real enterprises
as the proponent of "chain energy economy", the Hong Kong Institute of international new economy is committed to providing government regulators and traditional Chinese entities with new financial economy, blockchain technology and popularization of the theoretical system of "chain energy economy" and related solutions.

2. Recommend Hong Kong Institute of international new economy chain energy institute
in order to better promote the application of blockchain in real economy, Hong Kong Institute of international new economy has arranged "chain energy institute" + "chain energy capital" + "chain energy instry alliance", and established an ecological environment of self-development and self evolution of chain energy economy
chain energy college is an academic research and ecational institution focusing on economic theory, business model research and chain energy training ecation. It is the "brain" and theoretical pioneer of chain energy economy
the Hong Kong International New Economy Research Institute was officially established in Hong Kong on June 7, 2018. It is a comprehensive scientific research service institution. Its research fields include research on the integration and application of global blockchain and big data technology, research on the integration and application of global blockchain and artificial intelligence technology, Research on regulatory policies, laws and regulations of blockchain, research on the development of China's blockchain instry, research on the integration and application of global blockchain and artificial intelligence technology The practical application of blockchain technology. With the help of research and judgment on the trend of new economy, research results and promotion experience, the Hong Kong Institute of international new economy has proposed the forward-looking theoretical system of "chain energy economy" for the first time, which is committed to providing the popularization and relevant solutions of the theoretical system of financial new economy, blockchain technology and "chain energy economy" for government regulators and real enterprises
as the proponent of "chain energy economy", the Hong Kong Institute of international new economy is committed to providing government regulators and traditional Chinese entities with new financial economy, blockchain technology and popularization of the theoretical system of "chain energy economy" and related solutions.

3. With blockchain e-invoice, the operator can apply for, issue, check and enter the invoice on the blockchain, and the consumer can realize the storage, circulation and reimbursement on the blockchain. For tax supervision, the tax bureau of the management side can achieve the technological innovation of the whole process supervision and realize paperless intelligent tax management. The ordinary invoice has a complex process from printing, transportation, storage, sale, issuing to accounting, which is difficult to control and so on.

4. Now the content of online zero basic school blockchain is multifarious, but none of them can really let people learn the knowledge of blockchain with actual combat dry goods. As micro three cloud has been working in this area for a long time, the accumulated experience is worth learning. I hope it is useful for you.

5. Hubei now does few blockchain training, you know from the chain college, it is more comprehensive

6. Don't worry about the quality of one of the brands. You can find a better choice by comparing three brands

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm for building trust and acquiring rights and interests between different nodes in the blockchain system.

blockchain is an important concept of bitcoin, which is essentially a decentralized database and serves as the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block

in a narrow sense, blockchain is a kind of chained data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography

broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access A new distributed infrastructure and computing method using intelligent contract composed of automated script code to program and operate data

7. The recommendation of Guoxing blockchain business school is also top ranking in the instry, which is helpful for enterprises and can enhance the competitiveness of enterprises.

8. Don't limit the region, since the chain college can, the kind of online, I have learned two hours

9. RSA algorithm is very simple, summarized as follows:
find two prime numbers P and Q
take n = P * q
take t = (p-1) * (Q-1)
take any number e, which is required to meet E & lt; T and E and T are mutually prime (that is, the greatest common factor is 1)
take d * e% t = = 1

so that three numbers are finally obtained: n d e

let the message be the number m (M & lt; n)
set C = (m * * d)% n to get the encrypted message, C
set M = (c * * e)% n to M = = m, so as to complete the decryption of C
note: * * denotes the power, and D and E in the above two expressions are interchangeable

in symmetric encryption:
n d two numbers constitute a public key, which can be told to others
n e two numbers constitute the private key, which is reserved by E and not let anyone know
the information sent to others is encrypted by E. as long as others can use d to decrypt, it will prove that the information is sent by you, which constitutes a signature mechanism
when someone sends you a message, use d encryption, so that only you who own e can decrypt it

the security of RSA is that for a large number n, there is no effective method to decompose it
so that e cannot be obtained when n d is known; It is also impossible to
get d when n e is known<

RSA is simple and elegant, but its computing speed is relatively slow. Generally, RSA is not used to encrypt all information directly in encryption,
the most common case is to generate a symmetric encryption key randomly, then use symmetric encryption algorithm to encrypt the information, and then use
RSA to encrypt the encryption key

finally, it should be noted that the current n less than 1024 bits has been proved to be unsafe
in your own use, do not use RSA less than 1024 bits, it is better to use 2048 bits.