Eth private key to address

priKey_to_addr.go

package main

import (
	"encoding/hex"
	"fmt"
	"github.com/ethereum/go-ethereum/common/hexutil"
	"github.com/ethereum/go-ethereum/crypto/secp256k1"
	"github.com/wealdtech/go-merkletree/keccak256"
)

func main() {
	privateKeyStr := "0x0000000000000000000000000000000000000000000000000000000000000001"
	privateKey, err := hexutil.Decode(privateKeyStr)
	if err != nil {
		panic(err)
	}

	cv := secp256k1.S256()
	puKeyX, puKeyY := cv.ScalarBaseMult(privateKey)
	var x [32]byte
	var y [32]byte
	copy(x[:], puKeyX.Bytes())
	copy(y[:], puKeyY.Bytes())
	concatXY := append(x[:], y[:]...)
	k := keccak256.New()
	ethAddr := k.Hash(concatXY[:])
	ethAddrHex := "0x" + hex.EncodeToString(ethAddr[:])[24:]

	fmt.Println(privateKeyStr, ethAddrHex)
}