Digital currency wallet maintenance

1. Decentralized or cold wallets are relatively safe. The private key is backed up by itself and can be checked on all data links. As long as the private key is not leaked, the assets will not be stolen.

2. It is suggested to play with more official wallets, such as bitpie wallets

3.

The digital currency wallet is the hardware wallet, which means that the private key of digital assets is stored in a single chip, isolated from the Internet, plug and play. Hardware wallet can't guarantee 100% security. For example, if a geek gets your hardware wallet and doesn't know your private key, it may be cracked by violence. It's just one of the safest storage methods compared to other storage methods

many block chain entrepreneurs at home and abroad are optimistic about the development of this field, so they begin to build more hardware wallets. In the case of the exchange being stolen a lot of money and the software wallet being stolen from time to time, many investors regard the hardware wallet as the last moat

extended information:

whether the hardware wallet is safe

the hardware wallet can not guarantee 100% security. For example, if a geek obtains your hardware wallet, it may be cracked violently even if it doesn't know your hardware wallet immediately. It's just one of the safest storage methods compared to other storage methods

of course, there are exceptions, such as you have unlimited brain power and never forget. It's better to save it anywhere than in your own mind

4. Bet in wechat group? No app? Now many news reports about wechat group fraud. It's too unsafe. When the wechat group is disbanded, who do you want to get the money from.

5. It's a tool for managing and using digital currency.

6. Kushen digital currency wallet guarantees that the user's private key will never touch the Internet. Its core function is to construct the transaction process offline in Kushen wallet and sign the transaction digitally
at the same time, Kushen users can set seed password and payment password to strengthen the multiple protection of Kushen wallet
the layered certainty of Kushen digital currency wallet allows users to manage multiple bitcoin addresses with a single seed password
Kushen digital currency wallet is easy to use. Kushen users can set service charges and multiple target bitcoin address book on the wallet to facilitate the management of multi account digital assets
Kushen digital currency wallet has only one screen as a single output device and only one camera as a single input device. He communicates with Kushen Internet app through two-dimensional code communication.

7.

Generally speaking, blockchain wallet is used to store digital currency. In fact, blockchain wallet does not store digital currency, but a tool to store key (private key and public key). With the key, you can have the right to control the digital currency in the corresponding address, and use the digital currency collection address generated in blockchain wallet, You can accept the digital currency transferred to you by others, and you can also transfer the digital currency you own to others.

classification of digital currency wallets:

can be roughly divided into two categories, hot wallet (online wallet) and cold wallet (offline wallet)

first, hot wallet

Hot wallet is also called online wallet, It includes light wallets and heavy wallets (all node wallets). The wallets that need to be connected to the Internet can be directly traded

1. Light Wallet:

does not store the complete blockchain, only stores the data related to itself. It is small in size and can run on mobile phones, computers, web pages, etc

advantages and disadvantages: it does not occupy memory, supports a variety of digital assets, has a good user experience, is fast for novices, but transaction verification is a little slow

2. HEAVY WALLET (full node wallet)

maintains all blockchain data, completely decentralizes 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 needs to synchronize data before each use, takes up a lot of hard disk space, and does not support multiple digital currency transactions

Second, cold wallet

cold wallet is not connected to the Internet, also known as offline wallet; For example, professional hardware devices, or private keys (mnemonics) written on paper

1. Hardware wallet

Hardware wallet is to store digital currency with professional hardware, store the private key of digital assets in a chip, isolate it from the Internet, and plug and play

2. Paper wallet

the advantages and disadvantages of writing the private key on paper and then deleting

cold Wallet:

is relatively safe, but it is very troublesome to create a wallet and trade. It is difficult for novices to operate, and the price of wallets is relatively expensive, generally ranging from thousands to tens of thousands of yuan. If you don't have a large amount of digital assets, you don't need to consider

generally, it's recommended for novices to use light wallet. Light wallet is easy to operate and easy to use. Personal used geekwallet

simple and convenient light wallet supports bitcoin (BTC), lightcoin (LTC), Ethereum (ETH), EOS Storage and management of mainstream digital currency assets such as usdt

using bip44 mnemonics, local private key, off-line signature and other security mechanisms, as well as mobile phone and computer al backup strategy, completely solve the loss of digital currency assets caused by hacker attack, virus infection, mobile phone loss, forgetting mnemonics and other ways, and provide users with online Multi Chain digital assets one-stop management service. The platform also has tiaoshao market, which can carry out token trading of physical assets on the chain

8.

Nowadays, people's lives have undergone earth shaking changes. Shopping methods and work habits are being overturned. From the cash age to the Internet age, code scanning payment is becoming more and more convenient in all aspects, and the zero cash mode of clothing, food, housing and transportation has been fully realized. It must have never been thought about before. Now it is actually a reality, but this way will also say goodbye, Did you think of it? In an era of progress, there will be constant updates and iterations

according to the relevant reports, the next digital currency will be carried out in 28 regions such as Chongqing. According to this form, it will become a reality in the next few years. After the popularity of digital money, there will also be other ways of payment, but there are always lots of people who are willing to try new things. After experiencing the comparison, WeChat Alipay's two-dimensional code payment may really have to meet again. It is more secure than that. It does not need to bind the bank card, nor does it need the help of the third party platform. It's more convenient

which way do you prefer? Welcome to discuss

9. Safe and reliable digital wallet should be designed from at least five dimensions:
1. Security risk of running environment
the core file of encrypted digital currency Wallet - private key / mnemonics is stored on the terminal device, whether it is PC or mobile terminal, if the terminal device appears unsafe phenomenon, it has a very high security risk for private key / mnemonics
at the beginning of design, a secure digital wallet can avoid the possibility of private key / mnemonics being stolen e to the running environment. The security problems of the running environment on the terminal mainly include virus software, operating system vulnerabilities and hardware vulnerabilities
2. The security risk of network transmission
the security of network transmission is more reflected in the ability to resist man in the middle attack. Man in the middle attack means that the attacker creates independent contact with both ends of the communication and exchanges the data they receive, so that both ends of the communication think that they are talking directly with each other through a private connection, but in fact the whole conversation is completely controlled by the attacker
although most digital wallet applications use the HTTPS protocol to communicate with the server, the man in the middle attack method is to get the content of the HTTPS protocol by installing a digital certificate in the user terminal
a secure digital wallet needs to be able to scan the legality of all the digital certificates in the terminal, check the proxy settings in the network transmission process, and ensure the security of the basic network communication environment
in the development of digital wallet, whether to use two-way verification for communication verification at the network transmission level is also an important criterion to measure the security of a digital wallet application
3. The security risk of file storage mode
for the private key / mnemonics of digital wallet, the storage mode of terminal device also needs to be paid attention to in the security design. The access right of private key / mnemonic file directory, the form of private key / mnemonic file storage and the design of encryption algorithm all need to be strictly designed
when we analyze the security of several mainstream digital wallets, we find that even the well-known digital wallets are random in the storage of private key / mnemonic words. There are both plaintext storage and encrypted storage, but the decryption key is fixed in the code, which can not play any role in security defense
4. The security risk of the application itself
the security risk of the application itself mainly focuses on the security defense of the application installation package itself
whether the application installation package has the ability of anti tampering is a very core technical ability. In addition, memory security, anti debugging ability, life cycle management of private key / mnemonics, security of debugging log and security of development process also need to be enhanced
5. Security risk of data backup
if the mobile application can be backed up, it can use the machine with more powerful computing performance to brutally crack the private key / mnemonics. For example, if android:allowBackup Property is set to allow backup, then the backup mechanism of the system can be used to back up the application data files, and the private key / mnemonics of the encrypted digital currency will be backed up to the external media, which breaks the security boundary design of the operating system from another direction
for the majority of users, the security of digital wallet also means the security of wealth, so we must be careful when choosing digital wallet.

10. Did you buy this digital currency online? If it's a fraud, they're all showing up to protect their rights. They can only call the police