nakasone_exercise.go

package main

import (
	"encoding/hex"
	"fmt"

	"github.com/btcsuite/btcd/btcec"
)

func privkeyToPubkey(priv int) int {
	pub := priv * 2
	return pub
}

func genPrivkey(privHex string) *btcec.PrivateKey {
	pk, _ := hex.DecodeString(privHex)
	priv, _ := btcec.PrivKeyFromBytes(btcec.S256(), pk)
	return priv
}

func main() {
	privHex := "a2b1"
	priv := genPrivkey(privHex)
	fmt.Println(priv.D)

	// pub := privkeyToPubkey(priv)
	// fmt.Printf("priv: %d, pub: %d\n", priv, pub)
}