Why develop digital currency? From the perspective of the central bank, there are six advantages:

First, improve the convenience and transparency of economic transactions.

Second, reduce the high cost of traditional paper money distribution and circulation.

Third, better support economic and social development.

Fourth, help realize inclusive finance in an all-round way.

Fifth, reduce illegal and criminal acts such as money laundering and tax evasion.

Sixth, strengthen the central bank's control over money supply and currency circulation.

Digital currency development steps:

Step one,

First, we need to download the source code of a blockchain system from git, such as selecting the backbone code of Bitcoin and then downloading it.

Related source code.

At the same time, prepare the corresponding compilation environment (the suggestion of c++ is in Linux) and install the corresponding development environment and tools.

Step two,

The code needs to be compiled, so it is necessary to prepare the compilation environment and tools, and download the environment compilation tools and equipment.

Good system environment variables, qt environment and other files, compilation commands are detailed in Itc source code files.

However, the process of building a system, developing environment and compiling programs is complicated, so it is not recommended for ordinary users to make their own. For developers, it may take 2-3 days to estimate the installation configuration time for the first time.

Step three,

Take the development of Bitcoin as an example. It is the development environment of Q. After downloading the source code and configuring the environment, open the source code of Bitcoin core in QtCreator, configure related files and compilers, and start trying to compile the client of Bitcoin core.

Step four,

Convert to your own digital currency, open each source file, and find the corresponding place to adjust parameters, such as adjustment.

Number of coins per block, total output, adjustment difficulty, etc. And then the key point is to change its name to its own currency.

Name it casually, and don't forget to replace the related icons in the resource folder. If all goes well, a new one

Compile and your new coin will be invented smoothly.

For the development of digital currency, it is still a professional technology, and it is best to have a professional team to assist.

Digital currency Development Framework;

1. Build the private chain test environment of Ethereum and configure the public chain node environment.

2. The transaction and confirmation principle of Ethereum in Ethereum.

3. json rpc interface in Ethereum

4. The principle of transfer and withdrawal of Ethernet currency.

5. The server is connected to the public link port of Ethereum, and its own server stores business data, while the public link stores anonymous transaction data.

6. Safe handling of private key

The following is a code example developed:

For example, digital currency wallets commonly used in the market are:

APP class: kcash, imtokenweb: Myethereum Wallet Google Browser Plug-in: metaMask.

The most commonly used one is imToken.

Blockchain trading technology concept:

Let's take Bitcoin as an example to see how blockchain transactions are handled. In order to send a certain amount of bitcoin to another wallet, you need the following information: the address where the funds are sent to your wallet, and the amount of cryptocurrency you want to send.

ID of the payee's wallet.

Each transaction is signed with a unique secret key. Once the payment is signed by the sender, it is made public. The transaction still needs to be confirmed so that the payee can get the money. To confirm the transaction, it is necessary to generate a new chain block.

These blocks are generated by performing complex mathematical calculations to find a unique key. It takes 10 minutes to create a new square, and the person who finds the key gets a certain number of coins as a reward. Once a new block in the chain is created, it is impossible to delete it from the database or change the information in some way. Therefore, blockchain transactions are final and irreversible.

Three core advantages of digital currency:

First, digital currency is a fair currency.

Digital currency has no specific issuer, nor is it issued by a certain country. It is only generated by a specific algorithm, that is to say, digital currency cannot manipulate it by manipulating the number of issues. Therefore, digital currency is a free non-state currency.

We can see that many countries have directly recognized virtual currency, so if there is demand, we need a trading platform.

Now many investors who want to build a virtual currency trading platform, why can't they go to these areas to build a trading platform? Isn't it a good business opportunity to build a virtual currency trading platform?

Second, digital currency has a higher safety factor.

Although the appearance of paper money facilitates the transactions in our daily life, there is also the risk of being stolen. Although electronic money can avoid these risks, there will also be new problems such as stealing brushes.

Digital currency can avoid the above problems. Record every transaction on the network and broadcast it. Yes, all the nodes have saved all the money circulation information, so that any node can easily find the money circulation before the transaction.

Third, digital currency's transactions can be anonymous.

Because there is no traditional process of bank account opening and identity authentication, digital currency is purely anonymous. Although you can query the running water information of each account according to the local complete transaction records.

But it is impossible to know who the owner of this account is, and no one has the ability to manipulate the digital currency on other people's accounts, which protects the privacy of users.

If you are also trading digital currency, foreign exchange, gold, crude oil and contract futures: