paragonie-scott

<?php
function hashPbkdf2($algorithm, $password, $salt, $iterations, $length = 0)
{
    // Number of blocks needed to create the derived key
    $blocks = ceil($length / strlen(hash($algorithm, null, true)));
    $digest = '';
    $length = strlen(hash($algorithm, '', true));
    if (strlen($password) > $length) {
        $password = hash($algorithm, $password, true);
    }

paragonie-scott

Private-Key: (4096 bit)
modulus:
    00:f0:71:c0:a3:bb:5f:cc:63:f9:55:33:ed:a3:d0:
    78:ae:fc:ce:2e:f2:36:d1:e5:cb:64:d7:55:37:8b:
    7b:a0:60:5e:31:c3:2a:b3:6e:1f:33:89:0a:ba:f5:
    ab:48:0e:0d:f7:39:31:06:18:3d:66:d8:b9:0e:ba:
    bb:08:46:78:3a:51:4b:61:d7:0a:9d:46:54:72:94:
    71:b6:a7:82:58:5b:6d:96:11:ae:f7:d2:19:f2:b1:
    20:e7:00:72:df:15:ac:1f:1e:1e:34:04:fc:0b:63:
    b5:03:ff:47:34:27:c7:54:4e:ee:d7:c7:77:cd:1d:

paragonie-scott

Suppose I have a friend named Alice. Alice has registered to WhatsApp with a
Saudi number but resides in Europe. We chat over WhatsApp regularly. We are both
using the latest version of WhatsApp for Android (2.16.155).

However, Alice is unable to receive or initiate WhatsApp calls, even though she
is in Europe and is using European WiFi. If you can test this, I suggest you do.
Get a Saudi phone number, register to WhatsApp, and then fly to France and make
a call. You will encounter the same result even if you're on French WiFi.

WhatsApp claims that "the Saudis are blocking the initial handshake [for

paragonie-scott

function secure_rand(min, max) {
    var rval = 0;
    var range = max - min;
    if (range < 2) {
        return min;
    }

    var bits_needed = Math.ceil(Math.log2(range));
    if (bits_needed > 53) {
      throw new Exception("We cannot generate numbers larger than 53 bits.");

paragonie-scott

Changelog

• February 19, 2016: Initial release.

Broken?

GitHub Gist doesn't send notifications when people leave a comment, so shoot me an e-mail at admin@cryto.net. I'll gladly fix it. Fuck advertising.