Create Ethereum Account using golang

Question

I want to create ethereum account using golang. I am following this guide but I am stuck with errors just at the beginning of code.

accountManager:=accounts.NewManager(".ethereum/rinkeby/keystore",accounts.StandardScryptN, accounts.StandardScryptP))

Error : Unresolved Reference "accounts.StandardScryptN" & "accounts.StandardScryptP"

Answer 1

I think the guide is out of date.

StandardScryptN and StandardScryptP are now in the keystore package, not the accounts package. You'll need to update your import accordingly.

Answer 2

You can use the go-ethereum libraries to generate an account

import "github.com/ethereum/go-ethereum/crypto"
import "encoding/hex"

// Create an account
key, err := crypto.GenerateKey()

// Get the address
address := crypto.PubkeyToAddress(key.PublicKey).Hex()
// 0x8ee3333cDE801ceE9471ADf23370c48b011f82a6

// Get the private key
privateKey := hex.EncodeToString(key.D.Bytes())
// 05b14254a1d0c77a49eae3bdf080f926a2df17d8e2ebdf7af941ea001481e57f

Answer 3

If you have a private key hex string, you can recover the account by this:

package main

import (
    "fmt"
    "github.com/ethereum/go-ethereum/crypto"
)

func main() {
    // not started with 0x
    priKey := "0000000000000000000000000000000000000000000000000000000000000001"
    ecdsa, err := crypto.HexToECDSA(priKey)
    if err != nil {
        fmt.Println(err)
    }
    address := crypto.PubkeyToAddress(ecdsa.PublicKey).Hex()
    fmt.Println(address) //0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf
}