package crypto
import (
"crypto/md5"
"crypto/rand"
"fmt"
"strings"
)
func GenerateMD5Hash(email string) string {
email = strings.ToLower(strings.TrimSpace(email))
hash := md5.New()
hash.Write([]byte(email))
return fmt.Sprintf("%x", hash.Sum(nil))
}
func GenerateRandomToken16() (string, error) {
return GenerateRandomToken(16)
func GenerateRandomToken32() (string, error) {
return GenerateRandomToken(32)
func GenerateRandomToken(n int) (string, error) {
token := make([]byte, n)
_, err := rand.Read(token)
// %x base 16, lower-case, two characters per byte
return fmt.Sprintf("%x", token), err
