[Ethereum] Generate keystore file from raw private key (using geth)

keystoremyetherwalletprivate-key

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?

Best Answer

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.

Related Solutions

[Ethereum] How to get the raw private key from the Mist keystore file

You can use MyEtherWallet or MyCrypto(fork of MyEtherWallet) offline only wallet "view wallet details" function to extract private key from wallet json file. Feel free to use its offline version on an air gapped computer to secure your private key.

Edit: MyCrypto only provides this function in the offline version of the wallet now for obvious security issues of getting a private key from an internet site on a connected computer. So you are warned that you should only do that on an air-gaped computer.

[Ethereum] How to generate a keystore (UTC) file from the raw private key

geth-compatible keystore file can be created in Node using ethereumjs-wallet library:

> var Wallet = require('ethereumjs-wallet');
> var key = Buffer.from('efca4cdd31923b50f4214af5d2ae10e7ac45a5019e9431cc195482d707485378', 'hex');
> var wallet = Wallet.fromPrivateKey(key);
> wallet.toV3String('password');
'{"version":3,"id":"467233bf-45ec-423b-9548-bdc4a42aa099","address":"b14ab53e38da1c172f877dbc6d65e4a1b0474c3c","crypto":{"ciphertext":"17886b7ff355219dd20900543b9592fcd4dc6fe7d8f776f1a4d1c63993112181","cipherparams":{"iv":"434e4e71d2013a2d84e86a6e89efbb0b"},"cipher":"aes-128-ctr","kdf":"scrypt","kdfparams":{"dklen":32,"salt":"7a785ab75fa906734788d85ff43a2c8e704af41881dd50a2d52abe08092f07ec","n":262144,"r":8,"p":1},"mac":"98d9a76960dcef22a5fd28a6bf47e5c68a71b30bcf353eccbf5a6555abec78a1"}}'

You can also specify additional options to control kdf, cipher and other wallet params. See here.

Best Answer

Related Solutions

[Ethereum] How to get the raw private key from the Mist keystore file

[Ethereum] How to generate a keystore (UTC) file from the raw private key

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