Twilio - generate 6 digit random numbers

Question

Im planning to integrate twilio for two factor authentication in my Django application.

Now, I have installed twilio python module and sent some random messages to my number.

The next step is for me to send some random 6 digit numbers that's done in banking application or google two factor authentication.

How can I generate these numbers in my DJango application?

Possible duplicate of [Generating random integers in a specific range](http://stackoverflow.com/questions/363681/generating-random-integers-in-a-specific-range) — A.Kot, Oct 21 '16 at 14:42
You might find the [django-two-factor-auth](https://github.com/Bouke/django-two-factor-auth) app useful. It supports Twilio. — Alasdair, Oct 21 '16 at 14:46

Mohammad Jafar Mashhadi · Answer 1 · 2016-10-21T18:18:53.630

12

In addition to Matthias' answer (I upvoted his answer); Django provides a shortcut function for this purpose:

from django.utils.crypto import get_random_string

get_random_string(length=6, allowed_chars='1234567890')

Which is more readable and memorable.

And also if you are really concerned about randomness of this string, you may want to use random module from pycrypto because standard library implementations of random function in programming languages are not "random" enough for cryptographic and security related issues.

edited Oct 21 '16 at 18:18

answered Oct 21 '16 at 18:07

Mohammad Jafar Mashhadi

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I used this solution – Ajay Kumar Mar 04 '20 at 08:11

score 5 · Answer 2 · answered Oct 21 '16 at 14:45

5

You can use random.choice to determine each digit. choice will give you one element from the given sequence.

The code could look like this:

import random
pin = ''.join(random.choice('0123456789') for _ in range(6))

answered Oct 21 '16 at 14:45

Matthias

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score 1 · Answer 3 · answered Oct 22 '16 at 15:04

1

you could also do

import random
random.SystemRandom().randint(100000,999999)

answered Oct 22 '16 at 15:04

pragman

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score 0 · Accepted Answer · answered Oct 28 '16 at 18:09

Twilio developer evangelist here.

There have been some great answers to help you generate a random 6 digit string, however I just wanted to add one more suggestion.

Authy is part of Twilio and provides Two Factor Authentication as a service. It supports sending codes by SMS (which goes via Twilio), generating codes in the Authy application and even two factor authentication without copying a code from an app/sms to your login screen with Authy OneTouch. You can implement your entire 2FA flow with just 3 API calls.

There is a tutorial on how to use Authy with Flask, which I'm sure you could translate to Django.

Let me know if this helps at all.

score 0 · Answer 5 · answered Oct 01 '19 at 09:28

rand(1000, 9999); == 4 digit
rand(100000, 999999); == 6 digit

$client = $this->_initTwilioClient();
    $fromNo = $this->_helperPot->getTwilioPhone();
    $code = rand(1000, 9999);
    try {
        $result = $client->messages->create(
            $toNo,
            [
                'from' => $this->_helperPot->getTwilioPhone(),
                'body' => "Verification code: $code"
            ]
        );
        $output = [];
        $output['status'] = "success";
        $output['code'] = $code;
        return $output;
    } catch (\Exception $e) {
        $output = [];
        $output['status'] = "failure";
        $output['message'] = $e->getMessage();
        return $output;
    }

Twilio - generate 6 digit random numbers

5 Answers5