How to install digital currency wallet in Apple system
in terms of cloth storage and mining, I recommend Heshu hardware wallet and jiajiabao intelligent home miner. The core advantage of the proct is safety
take sum hardware wallet as an example. The advantages of sum hardware wallet are as follows:
1. The private key seed is encrypted layer by layer, physically isolated and never touched the Internet.
firstly, when creating the wallet, the seed password is generated and stored in the local encryption chip, and the 10 bit payment password is required
then, the transaction is made in the wallet. At this time, the user needs to enter the payment password to obtain the private key to digitally sign the transaction, and the transaction is completed. In addition, the private key seed is permanently stored in the chip, which is physically isolated and never touches the Internet. There is no need to worry about my password being stolen by hackers
Second, the bank system verifies the financial level motherboard and encryption chipuses the bank system to verify the financial level motherboard, and the private key seed is stored in the chip. If the proct is stolen or lost, and destroyed by malicious violence, the chip will trigger a self destruct circuit, and immediately permanently and irrecoverably delete all the information in the area
Third, it supports the withdrawal of global bitcoin ATM, which is convenient and fastthe reason why digital assets attract the attention of many fields in the world is that it is creating a global fast circulation, and the larger the circulation field is, the wider the scope is, and the higher its use value is. The core of digital assets is the medium it acts on among currencies. The Heshu wallet has built-in many mainstream exchanges in the world. It can trade digital assets anytime and anywhere. With one machine in hand, it can walk around the world without worry, and no longer have to worry about exchanging foreign currency
Different from conventional digital wallets, multi signature wallets need the authorization of multiple key holders to transfer digital currency, so the security of multi signature wallets is higher. Ordinary Wallet: a wants to transfer a bitcoin to X. A only needs his signature (using the private key) to complete the transaction. Sum Wallet: if a wants to transfer a bitcoin to x, a multi signature verification is set (at least two signatures of Abc3 indivials are required to transfer the money), then a needs B or C to complete the signature (using the private key) when a wants to transfer the money to X. I hope I can help you. Thank you1. 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.
insert the key shield into the computer and let it run the installation program by itself. After completion, there will be a big f sign in the lower right corner. Click the f sign and you will be prompted to modify the initial password (gdbebank). After the modification is successful, you can click "certificate version of personal online banking login" on the bank's website, and there will be a blue word "personal online banking activation" on the page. Click the prompt to complete the activation<
GF key shield is a tool launched by GF bank to ensure the security of online banking transactions. It adopts the digital certificate issued by the authoritative third-party certification authority, China Financial Certification Center (CFCA), to ensure the confidentiality, authenticity, integrity and non repudiation of online transactions, and at the same time to provide reliable guarantee for the security of customers' online banking accounts and funds. In February 2010, a new installation free GF key shield was launched, which can be used after being inserted into the computer
note: so far, MAC system does not support all online banking controls. If not, you can install a virtual machine or al system.
how to install Apple system
1. First, download the DMG image file of the new system from the website, then connect the USB flash disk to the computer, and get ready. The premise is that everything in the system is backed up, because after the installation, all the information in the system will be gone
2. First, make the startup and installation U disk: go to the top menu | utilities | disk tools, open the disk tools, and you can see all the connected disk letters in the list on the left
3. In the list on the left, select the U disk letter to make the startup system disk, select "partition" in the label bar on the right, and select "one partition" in the volume scheme. If the capacity of the disk is large enough, it can be divided into multiple disks, but make sure that the capacity of the disk is larger than 4.5g, select "Mac OS extension (log format)" in the format, and click the "options" button below, Select GUI partition table for the three options under "select a partition scheme of disk" to ensure more stable system disk. After selecting the parameters, click "apply" to format the U disk into the required format
4. Go back to the desktop, click the downloaded DMG system image file, and load it. After opening, there is a "install OS X mount lion" file in it. Right click to "display the package content". In the opened package content folder directory, find: contents / sharedsupport / installesd.dmg. Double click to load the image file. This is the system file we want to install
5. Go back to the "disk tools" interface, click the drive letter of the U-disk in the list on the left, click "restore" in the options bar on the right, then drag the image chart of the installation file from the left to the "source disk" position on the right, and drag the icon of the U-disk on the left to the "destination disk" position on the right to ensure that the icons of the two disks are displayed in the corresponding positions, Then click "restore" to the system file of the image to the U disk. This process takes about three to five minutes. After ing, open the U disk folder and you can see that the contents of the image file of the system have been copied to the U disk. In this way, you can start the U disk
6. Click the apple icon in the upper left corner and select restart. At this time, hold down the option key on the keyboard. When the drive letter option appears in the startup interface, use the direction key to select the newly made u disk; After a few seconds of operation, the OS X utility interface appears. Click the "disk tool" at the bottom to open the disk tool. At this time, we need to format the old system, so that the installed system is brand new and cleaner
7. It's the same as the principle of making the startup U disk just now, but the object to be formatted is different. Select the Macintosh HD icon of the hard disk system letter on the left, click the "partition" on the right tab, set the partition format as shown in the figure, and click "apply"
8. Next, click the "agree" agreement, select the drive letter of the installation to the hard disk, and then the display is ready to start the installation. About two minutes later, it will restart automatically
9. After the system is restarted, the installation will start. It takes about 20 minutes. After the installation, you will be prompted that "installation is complete". Then restart the system and start setting up the new system.