generate_wallet.go

package main

import (
	"crypto/ecdsa"
	"fmt"
	"log"

	"github.com/ethereum/go-ethereum/common/hexutil"
	"github.com/ethereum/go-ethereum/crypto"
	"golang.org/x/crypto/sha3"
)

var address string
var privateKey2 string

func generateWallet() {
	var err error
	privateKey, err := crypto.GenerateKey()
	if err != nil {
		log.Fatal(err)
	}

	privateKeyBytes := crypto.FromECDSA(privateKey)
	fmt.Println(hexutil.Encode(privateKeyBytes)[2:]) // fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19
	privateKey2 = hexutil.Encode(privateKeyBytes)[2:]
	
	publicKey := privateKey.Public()
	publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
	if !ok {
		log.Fatal("cannot assert type: publicKey is not of type *ecdsa.PublicKey")
	}

	publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)
	fmt.Println(hexutil.Encode(publicKeyBytes)[4:]) // 9a7df67f79246283fdc93af76d4f8cdd62c4886e8cd870944e817dd0b97934fdd7719d0810951e03418205868a5c1b40b192451367f28e0088dd75e15de40c05

	address = crypto.PubkeyToAddress(*publicKeyECDSA).Hex()
	fmt.Println("my generate Address :", address) // 0x96216849c49358B10257cb55b28eA603c874b05E

	hash := sha3.NewLegacyKeccak256()
	hash.Write(publicKeyBytes[1:])
	fmt.Println(hexutil.Encode(hash.Sum(nil)[12:])) // 0x96216849c49358b10257cb55b28ea603c874b05e
}