Electrum is a world-renowned Bitcoin light wallet with a long history of supporting multi-signatures and a very broad user base, many of which like to use Electrum as a cold wallet or multi-sign wallet for Bitcoin or even USDT (Omni). Based on this usage scenario, Electrum is used less frequently on the user's computer. The current version of Electrum is 3.3.8, and previous versions of 3.3.4 are known to have a "message flaw" that allows an attacker to send an "update prompt" through a malicious ElectrumX server. This "update tip" is very confusing for the user, and if you follow the prompt to download the so-called new version of Electrum, you may get a trick. According to user feedback, because of this attack, stolen bitcoins are in the four digits or more. This captured currency theft attack is not stealing the private key (electrum's private key is generally stored with two-factor encryption), but replaces the transfer destination address when the user initiates the transfer. Here we remind users that when transferring money, special attention needs to be paid to whether the destination address has been replaced, which is a very popular method of currency theft recently. It is also recommended that users use hardware wallets such as Ledger, if paired with Electrum, although the private key will not have any security issues, but also need to be alert to the target address is replaced.
Private key management, the management of private key in asymmetrmetric encryption, includes the generation, use, deletion and import and export of private key.
HSM (Hardware Security Module) holds the hot private key, and all operations on the private key are done inside the HSM, including the generation of the child private key, the signature of the transaction, and so on, so that no one can export the private key within the HSM.
According to Bleeping Computer, the Bitcoin wallet app Electrom was on GitHub on May 9th, accusing a phishing product called Electrum Pro of stealing a user's seed key and registering a domain name called electrum without Electrum's permission. The Electrum team noted that there was a piece of code indicating that the counterfeit product might have taken the user's seed key and uploaded it to the electrum. Affected users should transfer funds from Bitcoin URLs managed by Eletrum Pro.
electrum export master private key
If your address is a light wallet, such as Bieber, you can first use Bieber's Export Private Key Clear text feature.
The main key and HD wallet's main chain code generation process is shown in Figure 3.6, the root seed through the irreversible HMAC-SHA512 algorithm to calculate a 512-bit hash string, the left 256 bit is the main private key Master Private Key (m), the right 256 bit is the main chain code Master Chain Code;
Hackers broadcast messages to electrum clients through a malicious server, prompting the user to update to v4.0.0, and if the user is prompted to install this backdoor-carrying client, the private key is stolen and all digital assets are stolen.
Enter a password after the wallet is created to export the private key. It consists of 64 characters and cannot be changed.
Public key: The private key is generated by the private key, but cannot be pushed back by the public key. The role of the public key is to work with the signature to prove that "I am the master of the private key".
Completed support for xpublickey, adding the ability to export KeyStore without private key.
HD wallet is based on 12 mnone words to generate the root private key seed, and then based on the seed to generate a unique private key, and then by the root private key export sub-private key, each currency corresponds to a sub-private key, so as to achieve the unique private key management multi-currency asset management.
Then, when we have the private key, and how to export the public key and address step by step through the private key, the addresses on the CKB are divided into short and complete versions, what are their similarity and differences, and what needs attention in use?
I do the same thing as you do - back up, export private keys and try to import them into blockchain, bitcoinqt, electrum, armory, etc. But to no avail.
The private key is essentially a fixed length of random number, after the creation of the wallet, enter the password can export the private key, a wallet has only one private key and can not be changed, who owns the private key, who has control of digital currency. So the private key is very critical, be sure to save it. But because the private key is too long, the wallet does not let the user set it up, but the wallet generates the private key itself.
Export the private key and generate the keystore.
Private key export function is also a unique security measures of the Whale Exchange, in the encrypted world, the private key is justice. Whale Exchange, as the world's largest centered exchange, exclusively supports the export and import of private keys, only the user owns their own private key, the ownership of user assets truly belongs to the user.
As a result, Coinbase is patenting a solution called Key Ceremony, which encrypts private user passphrases as "master key sharing." These master key shares are then combined into an "operational master key" that generates an encrypted private key at checkout and then a corresponding decrypted private key when the transaction is signed.
According to Bleeping Computer, the BTC wallet app Electrom accused a phishing product called Electrum Pro of stealing a user's seed key on May 9 on GitHub and registering a domain name called electrum without Electrum's permission. The Electrum team noted that there was a piece of code indicating that the counterfeit product might have taken the user's seed key and uploaded it to the electrum. Affected users should transfer funds from BTC URLs managed by Eletrum Pro.
BEB wallet security, in the state of off-grid isolation can generate private key function, not because of hacking and network security breaches to break into the asset account, private key does not export, the account is risk-free.
The method is relatively common, as we all know. To export ledger's private key, get the private key can transfer the currency, or import the private key into other mobile wallets and then transfer funds special attention: exporting the private key through monemone is a more dangerous process, careless will lead to the disclosure of the private key, so we do not very much recommend this operation, you can also refer to the tutorial link, you can click here.
In Bitcoin Core, export the private key
Export address private key L4GPEfZDPPoen1fq3RvoVN7phEnmRN8iCr6mtCq4E9dgZoLkdoaQ.
After you create your wallet, you can export the private key by entering a password. The private key is a string of 64 16-character characters, and a wallet address has only one private key and cannot be modified.