RSA Keypair generation

keypair.go

package main

import (
	"crypto/rand"
	"crypto/rsa"
	"crypto/x509"
	"encoding/pem"
	"fmt"
	"log"
)

func main() {
	privateKey, err := rsa.GenerateKey(rand.Reader, 1024)
	if err != nil {
		log.Fatal(err)
	}

	pemdata := pem.EncodeToMemory(
		&pem.Block{
			Type:  "RSA PRIVATE KEY",
			Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
		},
	)
	fmt.Println(string(pemdata))

	pemdata = pem.EncodeToMemory(
		&pem.Block{
			Type:  "PUBLIC KEY",
			Bytes: x509.MarshalPKCS1PublicKey(&privateKey.PublicKey),
		},
	)
	fmt.Println(string(pemdata))
}