Open a hole in the brain, imagine one day you receive a message, without your distant relatives under the knee, you can inherit his one hundred million, the assets will be 1000 bitcoin form to call you, this time, you want to receive bitcoins, and to protect the assets.
To enter the digital currency world, it is necessary to store the assets, so the standard must be carefully read, because it is too important.
Bitcoin will be used to pick up bitcoin purse. The core wallet CORE of bitcoin community will download all the transaction data of bitcoin since its birth, so that it can be used. At present, this data has been 150G, and it is time-consuming and hard to download.
There are many bitcoin purses, including web purses, light purses, hardware purses and so on. There are too many options, and we recommend the use of light purses that are convenient and safe.
The advantage, not to download transaction data, to centralization of no central server to save the data, can prevent the wallet development team from cheating.
Bitcoin wallet domestic players currently recognized as a good wallet, recommended bit wallet wallet official website bitpei.com, because it is open source wallet, code is also checked by the industry, there is no problem. Remember to download from the official website, otherwise there is a chance to download a modified wallet.
If you play after the currency, there is a square wallet based on imtoken Ethernet is also often used, this wallet support Ethernet ETH and other several kinds of coin currency based on the ERC20 protocol, then if participate in other projects to raise the public, often using Ethernet ETH currency payment, making money with IMtoken.
The official website token.im, IOS system needs to borrow or buy an overseas ID download from Taobao.
There are several new terms that need to be understood deeply, or there will be losses in assets. These terms are addresses, passwords, private keys, mnemonic words, keystore and TXID (transaction Hashi).
Taking the imtoken as an example, the 5 words correspond to the contents of the bank account as the following:
The address is equivalent to the bank card number
The password is equivalent to the bank card code
The private key is equivalent to the bank card number and the bank card code
The word "AIDS" is equivalent to the bank card number and the bank card code
Keystore+ password = bank card number and bank card password
Keystore = bank card
TXID= transfer receipt (transfer record)
- Generating address
Address = bank card number
This is the address length.
0xD6b433aD0eb6c1dA48C4f1f9C137386C67C05396 - generation
After creating the wallet, a 42 bit string starting with 0x will be generated. This string is the wallet address. A wallet corresponds to a wallet address. The address is unique and cannot be modified, that is to say, the receipts and receipts of all tokens in a purse are the same. For example, the ETH's transfer address in a wallet is the same as the EOS's transfer address. This is different from the trading platform. The address of transfer receipts on different platforms in the platform is generally different. Therefore, we must confirm the address before transferring money to the trading platform. - use
The address of the wallet can be used to receive other people's currency or as a voucher for the currency.
Two, cipher
Password = bank card cipher - setting
When you create a wallet, you need to set up a password, which requires no less than 8 characters (bit is 6 bits). For security, the password is best set up more complicated. The password can be modified or reset. There are two ways to modify the password. One is to modify the password directly, which requires the input of the original password. If the original password is forgotten, the wallet is imported with the help word or the private key, and the new password is set up at the same time. - use
There are two uses for the password, one is the payment password when the account is transferred, and the two is the login password when the keystore is imported into the wallet. - features
In the real world, a bank card corresponds to a single password, and the original password will be lost after the password is modified. But in the imToken wallet, it's different. A wallet can use different passwords on different phones, independent of each other, and do not affect each other. For example, a password is set up in A mobile wallet. It is not necessary to enter the wallet on B phone and set up a new password, which does not affect the password usage of A mobile wallet.
Three. Private key
Private key = bank card number + bank card password
The private key is also a string of code - export
When you create a wallet, you enter the password to export the private key. The private key belongs to a plaintext private key, consisting of 64 bit strings. A purse has only one private key and cannot be modified. - use
In the import wallet, enter the private key and set a password (without entering the original password), then you can enter the wallet and have the control power of the wallet, then you can transfer the token in the wallet.
Four.
Word of aid = bank card number and bank card password
Word of help = private key - backup
After creating a wallet, there will be a backup assistant function. When selecting a backup word and entering the password, there will be 12 words. There is a space between each word. This is a mnemonic word. A wallet has only one auxiliary word and can not be modified. - use
Mnemonic is another form of the private key and the private key has the same function in the import wallet, enter the mnemonic word and set a password (do not enter the original password), can enter the wallet and have this wallet control, you can put the wallet in the token transferred. - features
The help words can only be backed up once, after the backup, in the wallet will not be displayed again, so it must be copied down when the backup.
Five, keystore
Keystore+ password = bank card number and bank card password
Keystore = bank card number
Keystore= encryption private key
Keystore+ password = private key - backup
There is a backup keystore function in the wallet, select the backup keystore, enter the password, there will be a large segment of the character, this is the keystore. - use
In the import wallet, select the official purse, enter the keystore and the password, and get into the wallet. It needs to be explained that this password is the password of the wallet originally set up by this phone, which is different from that of importing a purse with a private key or a memorizing word, and importing a wallet with a private key or a memorizing word does not need to know the original password and reset the password directly. - features
Keystore belongs to the encryption key, and is closely related to the wallet password, wallet password changes, keystore will use keystore to import the corresponding change in the purse, need to enter a password, this password is a backup keystore wallet password, the password modification has nothing to do with the later.
Six. Lost
In the real world, if your bank card is lost, the password is forgotten, you can go to the bank to retrieve it for you, your money or your money can't be lost, this is the advantage of centralization.
But in the block chain world, no one can save your wallet information except your own, if your wallet information is lost, no one can help you find it, nor can a wallet company. Therefore, as long as you protect the information of the wallet, the property inside the wallet belongs only to yourself, and no one can grab it, which is the advantage of centralization. - forgetting
If you forget your wallet information, what will happen to you? In several cases,
(1) the address is forgotten, you can use the private key, the help word, the keystore+ password, and import the wallet.
(2) the password is forgotten, you can use the private key, the memorizing word, import the wallet and reset the password.
(3) the password is forgotten. If the private key and assistant words are not backed up, they cannot resume the password, so they cannot transfer money to the token, or lose control of the wallet.
(4) the password was forgotten, and keystore lost its effect.
(5) the private key is forgotten, as long as your wallet is not deleted, and the password is not forgotten, you can export the private key.
(6) the private key forgot, can also use the aid word, the keystore+ password, into the wallet retrieved.
(7) the help word forget, can through the private key, the keystore+ password, into the purse to back up the backup word.
(8) keystore forgot, as long as your wallet is not deleted, the password is not forgotten, you can back up the keystore.
(9) keystore forgot that you can back up the keystore through the private key, the help word, the wallet and the wallet.
As you can see, as long as there is a message in the "private key, the help word, the Keystore+ code", the wallet is in. Therefore, a good backup of "private key, help word, Keystore+ password" is the most important. - leaks
It is important to back up the information of your wallet, and it is also important to prevent the leak of the wallet information. If the information of the wallet is leaked out, what will be the consequences? In several cases,
(1) the address is leaked, and it doesn't matter.
(2) the password is leaked, it doesn't matter.
(3) the address + password is leaked, as long as the cell phone is not lost, it doesn't matter.
(4) keystore leaked, the password did not leak, no relationship.
(5) the keystore+ password has leaked out, and other people can enter the wallet and turn the money away.
(6) the private key leaks, others can enter the wallet and turn the coin away.
(7) the help word leaked, and other people can enter the wallet and turn the money away.
It can be seen from the above that as long as there is a leak of information in the private key, mnemonic word and Keystore+ password, others will have the control of your wallet, and the money in your wallet will be transferred by others. Therefore, the "private key, the help word, the Keystore+ password" must never be leaked out. Once the possibility of leakage is found, the currency inside is transferred immediately. - backup
Since the private key, the memorable word, the Keystore+ password are so important, how to save it, the safest way to do it is:
Hand or print out
Because Keystore is more content, handwriting is not convenient, and it is not safe to be stored on computers. Therefore, it is not possible to backup Keystore. The key is to copy private key and assistant word only.
(1) copy several copies, put them in different safe areas, and tell the family.
(2) the opponent copied the content to verify, the introduction of the wallet can not be successful, prevent copying errors.
(3) backup information do not spread on the networking equipment, including mailbox, QQ, WeChat and so on.
(4) teach family to operate purses.
Seven. Cold Purse
I believe that we should have enough knowledge of wallet. If we store large assets, we need to use cold purse, that is, a wallet that doesn't connect to the Internet, so that the private key and mnemonic of the wallet will not appear in the environment of networking.
Because of the Internet, various programs can check pictures, SMS, chat records, WeChat collection and so on, which is very easy to leak.
Making a cold wallet is also very simple. Prepare a mobile phone specially designed for storing wallet, restore the mobile phone to the factory settings, and download the wallet from the official website, then download the network and disconnect the network.
Then the wallet address is generated and the assets are turned in. After the transfer is successful, there will be a block chain browser to see TXID (through wallet or exchange can see), you can see whether the transfer progress is successful or not. After that, the backup words are backed up, and the cell phone is saved.
Bitcoin block chain browser blockchain.info
Ether Fang block chain browser Etherscan.com
Used to query the result of the transfer
The former richest man said that his waking up assets were up one hundred million, and all of them were depressed. Because you want to have too much money after the cold wallet which can rest assured that it was stolen, how to do, how to do, fire water to do.......
Haha, old iron, do you have any ideas?