package main
import (
"bytes"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"fmt"
)
func main() {
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
panic(fmt.Errorf("GenerateKey :%s", err.Error()))
}
pemPrivateKeyOptions := &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privateKey)}
pemPrivateKey := new(bytes.Buffer)
if err := pem.Encode(pemPrivateKey, pemPrivateKeyOptions); err != nil {
panic(fmt.Errorf("MarshalPKCS1PrivateKey: %s", err.Error()))
}
pemPublicKeyOptions := &pem.Block{Type: "PUBLIC KEY", Bytes: x509.MarshalPKCS1PublicKey(&privateKey.PublicKey)}
pemPublic := new(bytes.Buffer)
if err := pem.Encode(pemPublic, pemPublicKeyOptions); err != nil {
panic(fmt.Errorf("MarshalPKCS1PublicKey: %s", err.Error()))
}
fmt.Println(string(pemPrivateKey.Bytes()))
fmt.Printf("\n")
fmt.Println(string(pemPublic.Bytes()))
}