func (r *EncryptPasswordRes) PasswordHash(password string) (string, error) {
    hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
    if err != nil {
        return "", err
    }
    return string(hashedPassword), nil
}

func (r *EncryptPasswordRes) PasswordVerify(hashedPassword, password string) bool {
    err := bcrypt.CompareHashAndPassword([]byte(hashedPassword), []byte(password))
    return err == nil
}