Random password generator

password.go

package password

import (
	crypto_rand "crypto/rand"
	"encoding/base64"
	"math/big"
)

func genRandomPassword() (string, error) {
	// Random length: 8-25 chars.
	n, err := crypto_rand.Int(crypto_rand.Reader, big.NewInt(18))
	if err != nil {
		return "", err
	}
	length := n.Int64() + 8

	// Random bytes.
	pwdBytes := make([]byte, length)
	_, err = crypto_rand.Read(pwdBytes)
	if err != nil {
		return "", err
	}

	pwdB64 := base64.StdEncoding.EncodeToString(pwdBytes)

	return pwdB64, nil
}