To ensure the security of the private key, the average computer saves only the master key and private key documents. When you want to use the private key, first decrypt the master key secret to get the master key, and then use the master key to decrypt all the private key secret to get the private key.
Simply put, if you want to take advantage of the convenience of extending the public key to derive branches of the public key without exposing yourself to the risk of leaking the extension chain code, you should derive the public key from the reinforced parent-private key, not from the general master-private key. The best way is to avoid pushing out the master key, the first-level sub-key derived from the master key is best derived with hardened derivation.
B: Electrum server can customize messages to appear in the user's electrum light wallet software, giving hackers a chance to broadcast phishing messages.
electrum-ltc master public key
$dir - "$homedir/.electrum/wallets"
To learn to use blockchain wallets, be sure to master the following five related noun definitions, namely public key, private key, mnounce, Keystore, password.
Since the end of December 2018, Bitcoin wallet Electrum users have lost 771 BTCs (worth about $4 million) in phishing attacks, according to a study released by Malwarebytes Labs. Electrum is known to implement a variant of a technology called Simplified Payment Verification (SPV), which allows users to send and receive transactions without having to download a full copy of the Bitcoin blockchain. An attacker is exploiting a vulnerability that anyone can manipulate a public Electrum peer to carry out an attack. (TNW)
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".
As a result, Coinbase is patenting a solution called Key Ceremony, which encrypts private user passphrases into master key sharing. These master key shares are then combined into an actionable master key that generates an encrypted private key at checkout and then a corresponding decrypted private key when the transaction is signed.
register_account? The account name to be created, the account public key, the account public key, and the master account name true to create the account.
Users of Bitcoin wallet Electrum are currently facing phishing attacks, according to Johnwick.io, a security lab. Hackers broadcast messages to the Electrum client through a malicious server, prompting the user to update to v4.0.0, and if the user follows the prompt to install this "backdoor-carrying client", the private key is stolen and all digital assets are stolen. At the time of writing, at least 1,450 BTCs worth about $11.6 million had been stolen from phishing attacks that faked Electrum upgrade tips.
WiFi master key
By performing the registration process, the EOS public key is mapped to the EOS smart contract, and in the future EOS will be officially issued with EOS master network tokens, which will be lost, disclosed or stolen, resulting in the inability to obtain EOS master network tokens.
Note: Electrum-XZC is derived from Electrum and uses different seed phrase criteria, so it cannot be imported.
Johnwick.io found that hackers launched a denial-of-service (DoS) attack on a well-known wallet, Electrum server. Hackers used a botnet of more than 140,000 computers to attack Electrum's nodes and simultaneously deployed malicious nodes. When a user connects to these malicious nodes and sends a transaction using an older version of Electrum, the user is prompted to update the Backdoor Client. If the user installs the client as prompted, the private key is stolen and all digital assets are lost. Millions of dollars of digital currency have been stolen, according to Electrum officials. Devi Security Labs recommends that users of Electrum Wallet update to the latest version of the client via the official website and never use the link in the prompt message.
A random number (pre-master key). The random number is encrypted by the server public key.
Another upgrade under study is the release of a new version of the Electrum-LTC desktop wallet. Electrum-LTC is an SPV wallet that can be used in Windows, Linux, and OS X operating systems.
Bitcoin wallet Electrum users face phishing attacks, when users update the client with a back door, the private key will be stolen, so far has been stolen 1450BTC.
By comparing the electrum-wallet with the official website downloaded by the electrum software, it was found that the software added code to steal a user's wallet and key and sent it back to sites such as Robert Paulson.me, pinnacle-consulting.pw, bestoftechforums.org, which is still alive, proving that the attack is still ongoing.
Use the tool Electrum to export the private key of BTC address 1DSPxFd4xwkJGCPKKYHICWFXDLPNqgvdAB, see screenshot for details.
Then, on top of another computer, install the electrum. Create a new wallet and select Import Bitcoin Address or Private Key