Generate keystore file from raw private key (using geth)?

Question

I have my public & private key (generated with MyEtherWallet), however, I forgot to create a keystore file, which would make my online access to the wallet a bit safer if I'm correct.

I got to install geth.exe on my offline computer, and

geth account import e:\rawprivatekey.txt

works, but only returns the public address. I can't seem to get it to regenerate a keystore file! Does anyone know how to do that?

Answer 1

When you import a key in geth it automatically creates a json wallet.

You can list existing wallets with geth account list.

A list should be like this:

Account #3: {59cc3d2701a69e2f006a47e412092d1274f81d58} keystore:///home/ubuntu/.ethereum/keystore/UTC--2018-01-28T05-19-52.363512148Z--59cc3d2701a69e2f006a47e412092d1274f81d58

The file pointed by the keystore is your json wallet you can copy and rename to some other place.

Answer 2

With Web3.js

var Web3 = require('web3');
var web3 = new Web3(Web3.givenProvider || 'ws://some.local-or-remote.node:8546');
var JsonWallet = web3.eth.accounts.encrypt(privateKey, password);

Answer 3

If you want to generate keystore file and you have a private key, you can use web3.py (^4.0.0b6).

There is a module called Account and in this module there is a method called encrypt.

Account.encrypt(private_key, password)

Creates a dictionary containing your private key, encrypted by the supplied password. If you want to create a keyfile recognized by Ethereum clients like geth and parity: encode this dictionary with json.dumps() and save it to disk where your client keeps key files.

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Link

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Yes, web3.js doesn't have it, but web3.py does