loadRSAKeys

/*
从文件中加载RSA密匙和公匙使用gob序列化
*/
package main

import (
	"crypto/rsa"
	"encoding/gob"
	"fmt"
	"os"
)

func main() {
	var key rsa.PrivateKey
	loadKey("./ca/private.key", &key)

	fmt.Println("Private key primes", key.Primes[0].String(), key.Primes[1].String())
	fmt.Println("Private key exponent", key.D.String())

	var publicKey rsa.PublicKey
	loadKey("./ca/public.key", &publicKey)

	fmt.Println("Public key modulus", publicKey.N.String())
	fmt.Println("Public key exponent", publicKey.E)
}

func loadKey(fileName string, key interface{}) {
	inFile, err := os.Open(fileName)
	checkError(err)
	decoder := gob.NewDecoder(inFile)
	err = decoder.Decode(key)
	checkError(err)
	inFile.Close()
}

func checkError(err error) {
	if err != nil {
		fmt.Println("Fatal error ", err.Error())
		os.Exit(1)
	}
}