区块链的热钱包和冷钱包,区块链的冷热钱包

近年来，随着区块链技术的发展，其中的热钱包和冷钱包也受到了越来越多的关注。那么，热钱包和冷钱包是什么？它们之间有什么区别？本文将为您解答。

什么是热钱包？热钱包是指将私钥存储在联网设备上的钱包。它可以通过互联网进行访问，比如桌面钱包、手机钱包和网络钱包等。由于它是联网的，所以它更容易受到黑客的攻击。因此，使用热钱包时，您需要注意安全性，并定期备份您的私钥。

什么是冷钱包？冷钱包是指将私钥存储在脱机设备上的钱包。它不能通过互联网进行访问，比如硬件钱包、纸钱包和离线钱包等。由于它是脱机的，所以它更安全，不容易受到黑客的攻击。因此，使用冷钱包时，您不需要担心安全性问题，但也需要注意备份您的私钥。

热钱包和冷钱包有什么区别？首先，热钱包和冷钱包的安全性不同。热钱包是联网的，容易受到黑客的攻击，而冷钱包是脱机的，不容易受到黑客的攻击。其次，热钱包和冷钱包的可用性不同。热钱包可以通过互联网进行访问，可以随时随地进行交易，而冷钱包不能通过互联网进行访问，需要拥有私钥才能进行交易。

总之，热钱包和冷钱包都有各自的优缺点，您可以根据自己的需求来选择合适的钱包。但无论您使用哪种钱包，都要注意安全性，并定期备份您的私钥。

请查看相关英文文档

㈠ What are some professional terms in the currency circle

Explanation of 26 common terms in the blockchain industry

1. Blockchain——Blockchain

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. is a shared distributed ledger where transactions are permanently recorded through appended blocks.

2. Block——Block

In the Bitcoin network, data will be permanently recorded in the form of files. We call these files blocks. A block is a set of records of some or all of the latest Bitcoin transactions that have not been recorded by other previous blocks.

3. Node - A copy of the ledger operated by participants in the blockchain network.

4. Decentralization

Decentralization is a phenomenon or structure that must appear or exist in a system with many nodes or in a group with many individuals. The influence between nodes will form a non-linear causal relationship through the network.

5. Consensus mechanism

The consensus mechanism is to complete the verification and confirmation of transactions in a very short time through the voting of special nodes; for a transaction, if the interests are irrelevant If several nodes can reach a consensus, we can think that the entire network can also reach a consensus on this.

6. Pow - Proof of Work

Proof of Work refers to how much currency you get, depending on the workload you contribute to mining. The better the computer performance, the more money will be allocated to you. There will be more mines.

7. PoS - Proof of Stake

Proof of Stake, a system of interest distribution based on the amount and time of currency you hold. In POS mode, your "mining" The income is proportional to your currency age and has nothing to do with the computing performance of your computer.

8. Smart Contract

Smart contract is a computer protocol designed to spread, verify or execute contracts in an information-based manner. Smart contracts allow trusted transactions to be made without third parties, which are traceable and irreversible.

9. Timestamp

Timestamp refers to a string or encoded information used to identify the recorded time and date. The international standard is ISO 8601.

10. Turing completeness

Turing completeness refers to the ability of a machine to perform any calculation that any other programmable computer can perform.

11. Dapp - decentralized application

It is an open source application that runs automatically and stores its data on the blockchain in the form of cryptocurrency tokens. Form incentives and operate with a protocol that displays proof of value.

12. DAO - Decentralized Autonomous Organization

It can be considered as a company that operates without any human intervention and hands over all forms of control toAn unbreakable set of business rules.

13. PrivateKey - Private Key

A private key is a string of data that allows you to access a token in a specific wallet. They, as cryptocurrencies, are hidden except from the owner of the address.

14. PublicKey——Public key

It appears in pairs with the private key. The public key can calculate the address of the currency, so it can be used as a certificate for owning the address of the currency.

15. Mining machine

A computing device or software that attempts to create blocks and add them to the blockchain. In a blockchain network, when a new valid block is created, the system will generally automatically give the block creator (mining machine) a certain number of tokens as a reward.

16. Mining pool

It is a fully automatic mining platform that allows miners to contribute their own computing power to mine together to create blocks and obtain block rewards. And the profits are distributed according to the proportion of computing power contribution (that is, the mining machine is connected to the mining pool - provides computing power - obtains income).

17. Public chain

A completely open blockchain refers to a fully open blockchain that can be read by anyone, anyone can send transactions, and transactions can be effectively confirmed. People around the world can participate in system maintenance, and anyone can read and write data through transactions or mining.

18. Private chain

A blockchain where write permission is only for a certain organization or a specific few objects. Read permissions can be open to the outside world, or restricted to any degree.

19. Alliance chain

The consensus mechanism is a blockchain jointly controlled by a number of designated institutions.

20. Sidechains

Pegged sidechains technology will enable the transfer of Bitcoin and other digital assets between multiple blockchains. This This means that users can access the new cryptocurrency system while using their existing assets.

21. Cross-chain technology

Cross-chain technology can be understood as a bridge connecting various blockchains. Its main application is to realize Atom transactions, asset conversion, and partitioning between blockchains. Information exchange within the blockchain, or solving Oracle problems, etc.

22. Hard fork

The blockchain has a permanent divergence. After the new consensus rules are released, some nodes that have not been upgraded cannot verify the blocks produced by the upgraded nodes. Usually a hard fork happens.

23. Soft fork

When the new consensus rules are released, nodes that have not been upgraded will produce illegal blocks because they do not know the new consensus rules, which will cause Temporary forks.

24. Hash——Hash value

Generally translated as "hash", there are also direct transliterations as "hash". Simply put, it is a function that compresses a message of any length into a message digest of a fixed length.

25. MainChain

The term main chain comes from the main network (relative to the test network), which is an officially launched, independent blockchain network.

For those who don’t understand the “jargon” of the currency circle, come and learn it quickly:

1. What is legal currency?

Legal currency is legal tender, issued by the country and the government, and is only guaranteed by government credit, such as RMB, US dollars, etc.

2. What is token?

Token, usually translated as pass. Token is one of the important concepts in the blockchain. It is more commonly known as "token", but in the eyes of professional "chain circle" people, its more accurate translation is "pass", which represents the area. A proof of stake on the blockchain, not a currency.

The three elements of Token

The first is digital proof of rights and interests. The token must be a certificate of rights and interests in digital form, representing a right and an inherent and intrinsic value;

The second is cryptocurrency. The authenticity, tamper resistance, privacy protection and other capabilities of the token are guaranteed by cryptography;

The third is the ability to flow in a network, so that It can be verified anytime and anywhere.

3. What is position building?

Building a position in the currency circle is also called opening a position, which refers to a trader’s new purchase or sale of a certain amount of digital currency.

4. What is stud?

Cryptocurrency stud means investing all the principal.

5. What is an airdrop?

Airdrops are currently a very popular cryptocurrency marketing method. In order to provide potential investors and people who are passionate about cryptocurrency with information about the token, the token team will conduct frequent airdrops.

6. What is lock-up?

Lock position generally means that after investors buy and sell contracts, when the market trend is opposite to their own operations, they open a new position opposite to their original position. Its name is Butterfly Flying Double.

7. What is candy?

Cryptocurrency candies are digital coins that are distributed to users for free when various digital currencies are first issued during ICO. They are a kind of momentum and publicity for the project itself by the issuer of the virtual currency project.

8. What is a break?

Break refers to falling below, and hair refers to the issuance price of digital currency. A currency circle break means that a certain digital currency falls below the issuance price.

9. What is private equity?

Cryptocurrency private placement is a way to invest in cryptocurrency projects, and it is also the best way for cryptocurrency project founders to raise funds for platform operations.

10. How do you look at the K-line chart?

K-line charts (Candlestick Charts) are also called candle charts, Japanese lines, yin-yang lines, stick lines, red and black lines, etc. The commonly used term is "K-line". It is plotted as the opening, high, low and closing prices for each analysis period.

11. What is hedging?

GeneralHedging is to conduct two transactions at the same time that are related to the market, have opposite directions, have equal amounts, and offset profits and losses. In the futures contract market, buy positions of the same quantity but in different directions. When the direction is determined, close the position in the opposite direction and retain the positive direction to gain profits.

12. What is a position?

Position is a market agreement that commits to buying and selling the initial position of a contract. Those who buy the contract are long and are in a position to expect an increase; those who sell the contract are short and are in a position to expect a decrease.

13. What are the benefits?

Good news: It refers to news that a currency has received mainstream media attention, or that a certain technology application has made breakthrough progress, which is conducive to stimulating price increases. This is called good news.

14. What are the disadvantages?

Bad news: news that causes currency prices to fall, such as Bitcoin technical problems, central bank suppression, etc.

15. What is rebound?

The price adjustment phenomenon in which currency prices rebound due to falling too fast in a downward trend. The recovery is smaller than the decline.

16. What is leverage?

Leveraged trading, as the name suggests, is to use small amounts of funds to invest several times the original amount, in the hope of obtaining multiple returns or losses relative to the fluctuations in the investment target.

㈡ What are blockchain digital asset cold wallets and hot money

Bitcoin wallets come in many forms, such as PC or mobile wallet clients, online web wallets, and even recorded A small notebook (paper wallet) or brain (brain wallet) for Bitcoin private keys. You can choose a wallet that suits you based on your needs.

Bitcoin wallets can be divided into cold wallets and hot wallets according to the storage method of private keys.

01. A cold wallet refers to a wallet where your private key cannot be accessed by the network.

Cold wallets often rely on "cold" devices to ensure the security of Bitcoin private keys, such as computers, mobile phones, and small notebooks with private key addresses written on them that are not connected to the Internet. Cold wallets avoid the risk of private keys being stolen by hackers, but may face physical security risks, such as computer loss and damage.

02. Hot wallet refers to a wallet that can access your private key via the Internet.

Hot wallets are often in the form of online wallets. When using hot wallets, it is best to set different passwords on different platforms and enable secondary authentication to ensure the security of your assets.

A wallet is actually a "management tool for private keys, addresses and blockchain data."

㈢ 7 Best Practices to Protect Cryptocurrency Assets

According to Atlas VPN research on January 12, 2021, attacks on blockchain last year caused 38 Huge losses of billions of dollars.

These numbers are provided by the Slowmist Hacked security team and include information about the number of attacks against blockchain projects, applications andtokens as well as cryptocurrency scams, with the latter accounting for 13% of all blockchain-related hacking incidents in 2020.

DApps and decentralized applications running on Ethereum suffered 47 attacks, with a current value of $446.3 million, followed by cryptocurrency exchanges, which suffered 28 attacks (losing $300.1 million) ).

Crypto wallets are the most popular targets of hackers, with losses of nearly $3.03 billion.

A cryptocurrency wallet is a software program that stores private and public keys, enabling users to send and receive digital currencies and monitor their balances.

The private key is the entrance to the digital wallet. Only the private key can prove that you are the owner of the assets in the wallet, and no one knows this private key except you. Cybercriminals often use sophisticated techniques to hack into digital wallets and steal or transfer crypto assets without users’ knowledge. When protecting digital currencies from cyberattacks, protecting your wallet is crucial.

Example: Jon, an Englishman, bought Bitcoin in 2010 and wrote the private key on paper, but was thrown away by the cleaner. From then on, the 10,000 in his wallet US dollar Bitcoin has nothing to do with him anymore.

Here are some recommended ways to protect your cryptocurrency:

01 Keep Stay calm

When your encrypted assets are stolen, please stay calm and do not panic to avoid secondary losses of assets caused by improper operation.

If you want to change your password, email, or backup device, take some time to make sure you are clear and sane enough to complete the steps.

If your funds are stored offline, your assets are safe, and hardware wallets are the safest way to store assets.

02 Use hot and cold wallets

Hot wallet Hot wallet is an "online wallet", an online wallet that can be used in a browser or mobile device Trade Bitcoin on, which can be accessed at any time.

Cold wallets Unlike hot wallets, cold wallets are not connected to the Internet, so they are not vulnerable to cyber attacks. They use physical media to store keys offline, which also makes them resistant to online hacking attacks. Therefore, cold wallets are more secure when it comes to storing tokens.

Hot wallets are suitable for frequent transactions, while cold wallets are more suitable for long-term storage of crypto assets.

03 Do not share private keys

Every cryptocurrency wallet has a public key and a private key.

The private key is used to verify asset ownership and encrypt the wallet, while the public key is used to identify the wallet and the public address to receive funds.

Never share your private key or password with others. Sharing a private key or password essentially gives others access to their cryptocurrency assets. Remember, a reputable cryptocurrency company will never ask users for their keys to help them solve a problem.

Only by protecting your private key can you control your own coins. This is where the saying “not your keys, not your coins” comes from.

04 Use a secure network

When conducting any transactions, please use a secure internet connection and avoid using public Wi-Fi network. Even when accessing your home network, you can use a VPN to improve security. Using a VPN will change your IP address and location. It will keep your communications, data, location and other private information confidential while surfing the Internet, thereby improving the security of your transactions.

05 Use multiple wallets to diversify assets

As the saying goes, you should put your eggs in into different baskets, so you can spread your assets across multiple wallets. Use one wallet for daily transactions and store the rest in separate wallets to enhance asset security and mitigate account losses in the event of an accident

06 Change your password regularly

Passwords are especially important.

Three-quarters of U.S. millennials use the same password on more than a dozen devices, apps and other social media accounts, according to a U.S. study. He also noted that most people use the same password in more than 50 different places.

If your email address has been compromised, we recommend that you change the associated password. When thinking about your password, we recommend that you choose a password that contains multiple types of characters, such as uppercase and lowercase letters and symbols to enhance security. .

Changing your password regularly can help improve the security of your assets. If you have multiple wallets, choose two-factor authentication (2FA) or multi-factor authentication (MFA) for added security.

07 Beware of Phishing Activities

Online scams through malicious ads and emails are very common in the cryptocurrency space, so we are Be careful when trading cryptocurrencies and avoid clicking on any suspicious and unknown links.

According to an Atlas VPN report released on January 12, 2021, the number of attacks has generally been on a downward trend over the past five years, although in 2019 there were 133 attacks targeting various Coordinated attacks on blockchain platforms, applications and tokens, but this number fell by 8% in 2020.

As the cryptocurrency industry continues to evolve, it is crucial that we learn to take the necessary security precautions to protect the safety of our assets.

For more information, please follow the public account: 1TMine computing power platform.

㈣ The value of wallets to blockchain

For entrepreneurs, the development of wallets is at the infrastructure level in the blockchain industry ecological map and belongs to digital asset storage subdivided areas, the technical threshold is relatively high.

Many users who have never used a digital wallet have almost no idea about it, and even think that digital wallets are just for "storing" digital currencies. This article gives a rough definition of a wallet. A wallet application has a series of key pairs, and each wallet address corresponds to a key pair - a private key and a public key.

The private key is untestable and non-repeatable and therefore unique. And the private key has ownership and control of the wallet and is used to sign and verify every transaction. In order to lower the user's threshold for use, the private key also has another form of expression - a mnemonic phrase to help users remember complex private keys.

How is the private key related to the public key? It generates a public key through a certain encryption algorithm, so that the private key corresponds to the public key one-to-one. The encryption algorithm is one-way, that is, the private key can derive the public key, but the public key cannot derive the private key. Therefore, it can be understood that mastering the private key is equivalent to mastering its ultimate control.

Security issues of digital wallets

First of all, everyone must know that digital wallets are decentralized, and most hot wallets inherit this attribute. Since the private keys are managed by the users themselves, they cannot be retrieved if lost, and transactions cannot be rolled back, making many users feel unsafe.

Here are ten wallet usage suggestions given by industry experts:

[if !supportLists]1. [endif] Use a backup wallet;

[if !supportLists]2. [endif] Do not transfer private keys to others at will;

[if !supportLists]3.   [endif] Do not use WeChat collection or cloud backup to store private keys;

[if !supportLists]4.           [endif] Cannot take screenshots or take photos to save private keys;

[if !supportLists]5. [endif]You cannot use WeChat or QQ to transfer the private key;

[if !supportLists]6. [endif]Do not choose email or cloud storage private key;

[if !supportLists]7. [endif]Do not use wallet applications from unknown sources provided by third parties;

[if !supportLists]8. [endif]Avoid Apple IDs provided by others;

[if !supportLists]9. [endif] Do not send the private key to the group;

[if !supportLists]10. [endif] Do not import the private key into the unknown of third-party websites.

Security is the foundation of digital wallets, as well as cryptocurrency and even the entire blockchain industry. In addition to ensuring the complete functions of the wallet, wallet developers should also pay attention to security.

How to manage digital wallets

We should pay attention to several issues about wallets:

[if !supportLists]First, [endif]Private The key determines the property rights of the digital currency you own and must be managed properly by yourself.

[if !supportLists]Second, [endif]The public key is public and the address is also public. Anyone who transfers coins to your address can only truly own the coins if they control the private key.

[if !supportLists] Third, [endif] The transaction flow is stored on the blockchain and has nothing to do with the private key address. The transaction accounts are public, and as long as you know the address, you can check how much the corresponding digital assets are.

[if !supportLists] Fourth, [endif] If the wallet is installed on a mobile phone or computer, or the backup key or mnemonic phrase is damaged, lost, or stolen, you should immediately reinstall or transfer assets to other wallets.

[if !supportLists] Fifth, [endif] No matter what kind of wallet it is, it is relatively safe. There is no absolute security. The private key or mnemonic phrase must be backed up and kept, and it is portable. It is difficult to have both.

How digital wallets operate in commercial banks

It was previously reported that the People’s Bank of China has a two-layer architecture design for digital currencies, and the central bank is also preparing to issue Digital currency.

Bank accounts and digital wallets of commercial banks have common management aspects. In this case, bank accounts and digital wallets are positioned differently. Then according to the wallet standards designed by the central bank, the wallet is a safe deposit box. The bank will manage the customer's safe deposit box according to the customer's requirements, which can be said to have all the attributes of cryptocurrency. So in this framework, the ID field of the digital currency wallet is added to the bank account. In this case, the digital currency wallet not only functions as a safe deposit box, but also does not participate in business, avoiding affecting the core business of the bank.

Digital currency transfers can be transferred directly in the commercial banking system, or through the issuing bank using a client digital wallet for direct point-to-point transactions. In this case, there is no need to rely on inter-bank payments between account banks.

The current competitive situation of digital wallets

The first is the competition for traffic, mainly to attract new users and promote activation, in order to have a large user base.

The second type is competition in gameplay, mainly reflected in community rewards, in order to enhance user stickiness.

Another option is to expand more extensive services, such as CTGPay, which can realize functions such as currency exchange and financial management with different countries. It saves users the trouble of exchanging currency and managing multiple legal currencies, and also greatly expands the application scenarios of digital currencies. Financial management can also guarantee an income of about 5% per month, so it is very popular among users.

The value of wallets to blockchain

The purpose of wallets is to store private keys. As mentioned at the beginning, it is not to store cryptocurrency. It can be said that as long as you have a private key, it means you have the corresponding token.

However, the current digital currency market has problems such as inconvenient digital management, high transaction and exchange thresholds, insufficient blockchain performance and unreasonable design, high blockchain development costs, difficulty in connecting to reality, and lack of scenario applications. And other issues. To put it simply, it is a token developed based on different public chains.n all require their own wallets.

Summary

If you still stay in the competition for basic functions, you will undoubtedly be left behind. Today's digital wallets should pay attention to building an ecosystem that covers multiple functions such as user community, transaction, interaction, financial management, etc. In order to have a large user base and ensure extremely high daily activity.

How many types of blockchain wallets are there?

How many types of blockchain wallets are there? It can be roughly divided into two categories, hot wallets (online wallets) and cold wallets (offline wallets)

1. Hot wallets
Hot wallets are also called online wallets, including light wallets and heavy wallets. Wallet (full node wallet), which needs to be kept online, can directly perform transaction operations.
1. Light wallet:
Does not store the complete blockchain, only saves data related to itself. It is small in size and can be run on mobile phones, computers, web pages, etc.
Advantages and disadvantages: Does not occupy memory, supports multiple digital assets, good user experience, quick to get started with novices, but transaction verification is slightly slow
Common digital currency light wallets include: cobo, geek wallet, kcash, etc.
2. Heavy wallet (full node wallet)
Maintains all blockchain data, is completely decentralized, and synchronizes all data. It has better privacy and can verify the validity of transaction data locally.
Advantages and disadvantages: It has better privacy and faster verification of information, but it requires data synchronization before each use, takes up a lot of hard drive space, and does not support multiple digital currency transactions.
2. Cold wallet
A cold wallet is a wallet that is not connected to the Internet, also called an offline wallet; such as professional hardware equipment, or writing the private key (mnemonic phrase) on paper.
1. Hardware Wallet
Hardware wallet uses professional hardware to store digital currency, and stores the private key of digital assets in a separate chip, which is isolated from the Internet and is plug-and-play.
2. Paper wallet
Write the private key on paper and store it, then delete it
Advantages and disadvantages of cold wallet:
Relatively safe, but creating a wallet and making transactions are very troublesome. It is difficult for novices to operate, and wallet prices are relatively expensive, generally ranging from a few thousand to tens of thousands of yuan. If you don’t have a large amount of digital assets, you don’t need to consider it.

㈥ Introduction to the development of digital currency wallets, blockchain digital wallets

The blockchain digital wallet system can conduct unified management of multiple mainstream digital currencies such as Bitcoin and Ethereum. And storage, that is to say, all currencies are installed in one wallet for management, which greatly reduces the threshold for using digital currencies and the management burden, and is also very flexible and convenient to use.

Blockchain digital currency wallet functions:

1. Financial management: Blockchain wallet APP developmentYou can add mortgage loan functions or other functions, such as bringing money to earn interest or other financial management functions.

2. Recommendation rewards: This is the reward mechanism of the wallet APP. For example, if you invite new users through links or other channels, you will also receive certain rewards. This mechanism can also This will also attract more users.

4. Trading system: If you want to trade when you see the market, the trading module in the general wallet can have Lianzhong's approach. For this purpose, a trading module can be directly developed and then used by those who are strong and able to afford funds.

5. Market information: For users, market conditions are very important. They can obtain new information at any time in order to make timely adjustments, so this function is equally important.

Advantages of blockchain wallet App development:

1. Distributed storage

Blockchain wallets that use distributed storage eliminate The influence of centralization is to store data in different nodes in a distributed manner, ensuring the security of users' wallets and data, and removing the central management mechanism. If someone wants to steal the user's wallet account information, they need to first find the node where the user stores the information, and then attack different data storage nodes at the same time, instead of just attacking one central point as before, which increases the number of hackers. The difficulty of stealing user information ensures the security of user information.

2. Encryption algorithm

Every data storage node in education has the application of encryption algorithm, and a user’s data is not only stored in several nodes, but also Among the unclear nodes. It may be hundreds, thousands, tens of thousands, etc. Each node has the application of encryption algorithm, which further improves the security of account information.

3. Traceability

Traceability is the most practical aspect of a blockchain wallet. When a user transfers a wrong account, the transferred money can be recovered through the application of technology. Chase back. Since transfer is also a kind of data transmission information, we only need to trace the source of the data, submit a management application, and retrieve the money data.

㈦ [Blockchain] What is a blockchain wallet?

When it comes to blockchain wallets, we have to talk about Bitcoin core (Bitcoin core) and other blockchain wallets Most of them are modeled after Bitcoin wallets, which are our tools for managing Bitcoins.

Our Bitcoin information is stored in the Bitcoin wallet, including Bitcoin address (similar to your bank card account number) and private key (similar to your bank card password). The Bitcoin wallet can Store multiple Bitcoin addresses and the independent private keys corresponding to each Bitcoin address.

The core function of a Bitcoin wallet is to protect your private key. If the wallet is lost, you may lose your Bitcoins forever.

Blockchain wallets come in many forms.

According to whether the user has the private key, wallets can be divided into: on-chain wallet (onchain wallet) and escrow wallet (offchain wallet). There are two differences between them:

Regarding on-chain wallets (onchain wallets), we can divide them into cold wallets and hot wallets according to whether the private key storage is connected to the Internet; we also call cold wallets and hot wallets They are offline wallet and online wallet.

Generally speaking, hardware wallets are cold wallets (it is generally recommended to use cold wallets to store large amounts of digital currency that are intended to be held for a long time). In addition to this kind of professional equipment, we can also use offline computers, Mobile phones, paper wallets, brain wallets, etc. are used as cold wallets to store our digital assets.

The biggest advantage of a cold wallet is its security, because it does not touch the Internet, which can greatly reduce the possibility of hacker attacks; the only thing you need to worry about is not to lose your cold wallet.

Corresponding to the cold wallet is the hot wallet. Hot wallets need to be connected to the Internet; hot wallets can be divided into desktop wallets, mobile wallets and web wallets.

Hot wallets are often in the form of online wallets, so when using hot wallets it is best to set different passwords on different platforms and enable secondary authentication to ensure the security of your assets.

According to the maintenance method of blockchain data and the degree of decentralization of the wallet, wallets can be divided into full node wallets, light node wallets, and centralized wallets.

Most of the full node wallets are desktop wallets, representatives of which include Bitcoin-Core core wallet, Geth, Parity, etc., this type of wallet needs to synchronize all blockchain data and takes up a lot of memory, but it can achieve complete decentralization.

Most mobile wallets and web wallets are light node wallets. Light wallets rely on other full nodes in the blockchain network and only synchronize transaction data related to themselves, which can basically achieve decentralization.

The centralized wallet does not rely on the blockchain network. All data is obtained from its own centralized server; however, the transaction efficiency is very high and can be credited in real time. The account you registered in the trading platform It is a centralized wallet.

Remember that in the world of blockchain, whoever holds the private key is the real owner of digital assets.

㈧ The difference between cold wallets and hot wallets

1. The cold wallet does not touch the network. It uses a new technical model to ensure that the cold-end hardware never touches the network and uses multiple encryption protection systems to ensure Core assets, fully cold environment completely eliminate the risk of private key leakage.
2. Hot wallets are more convenient to use than cold wallets, but are far less secure than cold wallets.
Extended information:
1. Cold wallet: refers to the Bitcoin storage technology developed by an information technology company that provides secure storage solutions for blockchain digital assets. The cold wallet integrates functions such as digital currency storage, multiple transaction password settings, publishing the latest market conditions and information, and providing hard fork solutions. It also uses QR code communication to prevent private keys from being exposed to the Internet, which can effectively prevent hackers from stealing.
2. Hot wallet: It allows users to use Bitcoin on any browser and mobile device. It usually also provides some additional features to make it more convenient for users to use Bitcoin. However, you must be careful when choosing a hot wallet because its security is affected by the service provider.
3. Advantages of cold wallets
(1) Some cold wallets support a wide range of currencies.
(2) The private key does not touch the Internet, so there is no need to worry about being attacked by hackers and Trojans.
(3) The coins in the cold wallet adopt a decentralized storage method, and each address stores a certain number of coins.
(4) Once a private key is transferred online, it will be invalid and will never be used again.
4. Advantages of hot wallets
(1) They allow software developers to adopt their own applications.
(2) It can easily withdraw cryptocurrencies without requiring third-party users to access private keys like supporting "exchanges".
(3) It prevents hackers from attacking using its custom protection methods, such as different confirmation procedures to improve withdrawals and two-step login.
5. The main advantage of cold wallet is security, but the disadvantage is also obvious, that is, it is inconvenient to operate, especially when transferring tokens. In comparison, hot wallets are slightly inferior in terms of security, but they are easy to operate. Security is always relative. From the perspective of hackers, Trojan viruses, etc., cold wallets are more secure than hot wallets. The operating threshold of cold wallets is also relatively high, and the convenience is not as good as hot wallets. Therefore, cold wallets are mainly used by institutions or individuals with large crypto assets. With the digital asset financial marketWith the rapid development of digital assets, the number of market participants and traders of digital assets has increased sharply. At the same time, pain points such as digital assets being stolen, digital assets being misappropriated at will, and digital asset investment risks being high have also been completely exposed. Therefore, as an indispensable part of the blockchain industry, wallets are accelerating with the development and expansion of the blockchain industry.

㈨ The importance of blockchain wallets

Now more and more people are beginning to participate in blockchain projects, understand and participate in them It is believed that people will use blockchain wallets. The "wallet" here refers to a virtual tool used to store and use virtual currencies.

Wallets are mainly divided into cold wallets and hot wallets, which include private keys, public keys and auxiliary words. Next, I will explain their differences and functions in detail.

Cold wallet: A cold wallet refers to a wallet that is not connected to the Internet and stores digital currency offline. Users generate digital currency addresses and private keys on an offline wallet and then save them. The cold wallet integrates functions such as digital currency storage, multiple transaction password settings, publishing the latest market conditions and information, and providing hard fork solutions, which can effectively prevent hackers from stealing.

Hot wallet: Hot wallet refers to a wallet that needs to be connected to the Internet. It is more convenient to use, but now the network is more complex, there are many phishing websites, and there are risks, so it is difficult to use a wallet or exchange. It is best to set different passwords and enable secondary authentication to ensure the security of your assets.

In summary, cold wallets are more secure than hot wallets.

Private key: The private key is a string of data generated by a random algorithm. It can calculate the public key through an asymmetric encryption algorithm, and the public key can then calculate the currency address. The private key is very important, as the password is hidden from all but the owner of the address. Blockchain assets are actually on the blockchain. The owner actually only owns the private key and has absolute control over the assets in the blockchain through the private key. Therefore, the core issue of blockchain asset security lies in the storage of the private key. The owner must keep it safe. Compared with the traditional form of username and password, the biggest advantage of using public key and private key transactions is to improve the security and integrity of data transmission. Because of the corresponding relationship between the two, users basically do not have to worry about the data transmission process. The possibility of being intercepted or modified by hackers. At the same time, because the private key encryption must be decrypted by the public key it generates, the sender does not have to worry about the data being forged by others.

Public key: The public key appears in pairs with the private key. Together with the private key, they form a key pair and are stored in the wallet. The public key is generated from the private key, but the private key cannot be derived from the public key. The public key can obtain the wallet address through a series of algorithm operations, so it can be used as a certificate to own the wallet address.certificate.

Mnemonic phrase: The mnemonic phrase uses a fixed algorithm to convert the private key into more than ten common English words. The mnemonic phrase and the private key are interoperable and can be converted into each other. It is just a friendly format for the private key of the blockchain digital wallet.

Keystore: Mainly common in Ethereum wallet apps (Bitcoin is similar to the Ethereum Keystore mechanism: BIP38). It is obtained by encrypting the private key through the wallet password, and the mnemonic phrase Different, generally it can be saved as text or JSON format. In other words, Keystore needs to be decrypted with the wallet password before it is equivalent to the private key. Therefore, Keystore needs to be used with the wallet password to import the wallet. When a hacker steals the Keystore, without a password, it is possible to unlock the Keystore by brute force cracking the Keystore password. Therefore, it is recommended that users set a slightly more complicated password, such as adding special characters, at least 8 characters, and make it safe. storage.

In summary: The function of the wallet is to protect our private key. The private key is the full authority to control the assets. Only those who have the private key can use the virtual currency in this account. When using the wallet, remember not to disclose your wallet's private key, mnemonic phrase, Keystore and other information to others. This information is important information that can directly steal your digital assets.

Things to note when using the wallet:

1. Make a backup copy of the private key and mnemonic phrase. It is best to write a handwritten copy on your mobile phone and save it.

2. Do not click on unknown websites easily.

3. Do not take screenshots or take photos to save.

In short, the most important thing is to keep your private key.