April 23, 2024

sending cryptocurrency offline MyEtherWallet | MEW

To send cryptocurrency offline, you will need two computers, one of which is not connected to the Internet.
Go to the MEW github profile (https://github.com/kvhnuke/etherwallet/releases) to download the local version to your PC (etherwallet-v3.40.0.zip).

Detailed MEW instructions offline

Signed transaction generation offline:
1) On a PC with Internet access, go to MEW (unzip the previously downloaded archive and run index.html).
2) Click on the “Send Offline” tab
3) In the “From Address” field, enter the number of your wallet from which the cryptocurrency will be sent, and click “Generate Information”.
4) We will be shown the “Gas Price” and “Nonce” values ​​that we need to remember.
5) On a PC where there is no Internet, run index.html.
6) Click on the “Send Offline” tab, in the “From Address” field, enter the number of your wallet from which the cryptocurrency will be sent.
7) In the “To Address” field, enter the number of the wallet to which the cryptocurrency will be sent. In “Value Amount to Send” we record the amount of cryptocurrency being sent.
8) The “Gas Limit” field is set automatically. When sending cryptocurrency, Gas can be increased and is paid from ETH.
9) We fill out the “Gas Price and Nonce” fields based on point 4).
10. The “Data” field remains empty.
11.In the field “How would you like to access your wallet?” Select “Keystore File (UTC / JSON)”, add the saved file and enter the password.
10. Click “Unlock” and then click “Generate Transaction”. Copy the “Signed Transaction” value.

Sending a finished transaction to the network:
1) On a PC with Internet access, run index.html.
2. Click on the “Send Offline” tab, insert our completed transaction into the “Signed Transaction” field and click “Send Transaction”.

Thus, the transaction is offline. The point is that you are not showing your private key anywhere, only a ready-made transaction gets to the Internet, in which it is impossible to decrypt your private key.
This is one of the most secure ways to work with the MEW wallet. More powerful protection is achieved when using hardware wallets.