Retrieval of blockchain mnemonics

1. If you lose the mnemonic words in the digital currency wallet, it is almost equal to the loss of the private key. Mnemonic words are just a form of the private key that is easier to understand. If you lose the private key, it is almost equal to the loss of the digital currency in the wallet. With the current technology, it is impossible to crack it. Therefore, if you forget it, you can only recognize it. Change the wallet and back up the mnemonic words

2. Indeed, there are blockchain wallets using this technology, such as IDC
wallet. In fact, mnemonics are another form of expression of the private key, which has the same function as the private key, mainly to protect your blockchain money

3. People who play digital currency know that everyone's wallet account has a private key. If you lose the private key, all the property in the wallet will no longer exist, so losing the private key is a terrible thing for friends who play currency. In addition, the person in charge of an encrypted digital currency exchange in a foreign country said: "it is the iron law of the blockchain world to recognize only the private key but not the person. With the current computing power and technology, it is absolutely impossible to dece the private key from the address. If it is feasible, all the addresses on the whole blockchain will lose security, and the assets on the blockchain will lose their meaning. "

4.

First of all, remember whether the mnemonic words are at risk of loss. If it is possible to be known by others, please create a new token wallet at the first time and transfer the original wallet assets

if the wallet account in the cornerstone stage cannot be transferred, please contact the project party in time and ask the other party to assist in the transfer of token assets. If you are sure that it belongs to your own deletion or damage and is not known by others, you can choose to note the private key and log in with the private key

mnemonics is another form of plaintext private key, which was first proposed by bip39 proposal. Its purpose is to help users remember complex private key (64 bit hash value)

mnemonic words are generally composed of 12, 15, 18, 21 words, which are all taken from a fixed vocabulary, and their generation order is also based on a certain algorithm, so users don't have to worry about randomly entering 12 words to generate an address

although both mnemonic words and keysore can be used as another form of private key, different from keysore, mnemonic words are unencrypted private keys. Anyone who gets your mnemonic words can easily take control of your assets

So after users backup mnemonics, they must pay attention to three points:

1. Try to use physical media backup as much as possible, such as writing on paper with pen, and try not to take screen shots or photos and put them in networked devices to prevent being stolen by hackers

If one or two words are copied wrong, it will bring great difficulties to retrieve the correct mnemonics

3. Keep the backup mnemonics properly and take anti-theft measures

users can use the backup mnemonics to re import imtoken and generate a new keysore with a new password to modify the wallet password

extended data:

the essence of using imtoken to create wallets is to generate a set of mnemonics randomly. Due to the characteristics of decentralization, imtoken does not keep the privacy information of users' wallets. So after generating mnemonics, users must keep them by themselves. This group of mnemonics can dece the private key, the public key and the address of the wallet

according to the above instructions, if we want to find the mnemonic words, we need to know the generation process of mnemonic words: first, we make a 128 bit random number, and then we check the random number by 4 bits to get a 132 bit number, and then we divide it by 11 bits, so that we have 12 binary numbers, and then we use each number to look up the word list defined by bip39, So you get 12 mnemonics

calculate the number of mnemonics that can be generated, bip39 mnemonics thesaurus contains a total of 2048 words, 12 words in each group. For example, by analogy, the amount of sand on earth is about 1, followed by 18 zeros. If we can generate one million mnemonics per second, we can generate 3.1536 e + 13 mnemonics per year, which takes about 1.6715937e + 26 years to traverse all mnemonics. Therefore, brute force cracking is impossible

if all mnemonics and private keys are lost, they can't be recovered by brute force cracking, because imtoken's decentralization can't be recovered from us. However, if the mnemonic words are lost and the private key is still kept, the use of the wallet will not be affected

source: Official Website of imtoken - why is there no way to retrieve the missing mnemonics