红色之火Key迁移之路（redis 迁移 key）

The implementation of Key Transfer is a hot issue in the blockchn industry. It has been put forward by Ethereum founder Vitalik Buterin. It is proposed to improve the scalability of blockchn networks through the use of relayers, or middle layers, to collect, authenticate and confirm transactions. This mechanism has not been formally implemented yet, but it has received a lot of attention from the market.

Key transfer is also known as state channel, which means that the user opens a channel with another party and sends signed transactions between them, reducing the transactions to the blockchn. During the channel, the two sides can transfer funds, complete smart contract executions, or agree on progress in their transaction. All transactions are settled at the end of the channel.

The application of Key Transfer technology can achieve high scalability of blockchn networks while mntning the security of the underlying blockchn system. With the implementation of Key Transfer, users can complete transactions without having to wt for the entire network to be verified. This can reduce transaction time, reduce transaction costs, and ultimately increase user experience.

In fact, key transfer technology is not entirely a new concept. Already Lightning Network and Connext Network have adopted the technology. In the future, more and more blockchn networks will adopt state channels to improve the scalability of blockchns.

Here’s an example of a simple state channel:

(The code is written in Solidity language)

function pay(bytes32 _hashLock, uint64 _amount) public {

require(_amount > 0);

require(!channels[_hashLock]);

// create new stateChannel

channels[_hashLock] = new StateChannel(_sender, _recipient, _amount);

// transfer amount to recipient, both recipient and sender have to sign off the transaction

_transfer(_recipient, _amount);

}

function {

StateChannel(address _sender, address _recipient, uint _amount) public{

sender = _sender;

recipient = _recipient;

amount = _amount;

}

}

In conclusion, Key Transfer is one of the most promising technologies in the blockchn industry. It has the potential to dramatically improve user experience and scalability for blockchn networks in terms of speed and cost, but further exploration and development is needed before it can be implemented.