How to backup digital currency Wallet
Publish: 2021-04-17 13:10:50
1.
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
2. The answer is yes
when transferring money, the receiver only needs to send the address of the wallet to the other party, and the other party can transfer the digital currency to the address. When trading in the exchange, the user should also enter the digital currency into the address designated by the exchange, that is, the wallet, to complete the transaction. At the time of withdrawal, the exchange will also enter the digital currency into the user's wallet address accordingly. This is how the money should be transferred to the wallet.
when transferring money, the receiver only needs to send the address of the wallet to the other party, and the other party can transfer the digital currency to the address. When trading in the exchange, the user should also enter the digital currency into the address designated by the exchange, that is, the wallet, to complete the transaction. At the time of withdrawal, the exchange will also enter the digital currency into the user's wallet address accordingly. This is how the money should be transferred to the wallet.
3. When transferring money, the receiver only needs to send the address of the wallet to the other party, and the other party can transfer the digital currency to the address. When trading in the exchange, users should also enter the digital currency into the address set by the exchange, that is, the wallet, to complete the transaction. At the time of withdrawal, the exchange will also enter the digital currency into the user's wallet address accordingly. This is how the money should be transferred to the wallet.
4. 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.
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.
5. The dealer chooses your wallet address, transfers it to you, and you pay. This is a complete transaction
6. I think it's convenient and safe to use kushenleng wallet, because the part storing digital currency can only communicate through two-dimensional code, it won't touch the network, and it's very safe to store.
7. 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.
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.
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