Chubek

# Syntactic Grammar for ECMAScript

ecma-script-module		::= { top-level | ignorable }

top-level			::= statement
				 | function-declaration
				 | class-declaration

function-declaration		::= [ "async" ] "function" identifier function-params-postfix compound-statement

DavidBuchanan314

MD5 Collision with CRC32 Preimage

Here's the scenario: We want to craft two different messages with the same MD5 hash, and a specific CRC32 checksum, simultaneously.

In other words, we want an MD5 collision attack and a CRC32 preimage attack.

This might seem like a contrived scenario, but it's exactly the one I faced while producing my PNG hashquine (Yes OK maybe that's also a contrived scenario, cut me some slack).

On its own, a CRC32 preimage attack is trivial. You can craft a 4-byte suffix that gives any message a specific checksum, calculated using a closed-form expression (which I am too lazy to derive, not even with assistance from Z3). It's not an attack per-se, since CRC32 was never meant to be cryptograpically secure in the first place.

gmolveau

Firefox Dark Background

• How to change the background on Firefox to a dark one on new tab / loading screen ?

Procedure

• Type about:config in the URL bar
• Search toolkit.legacyUserProfileCustomizations.stylesheets and double-click the field to set it to true
• Type about:support in the URL bar
• Look for Profile folder field and click on the open button next to it.

timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

juanca

javascript:
document.querySelectorAll('.load-diff-button').forEach(node => node.click())

MichaelPote

#
# Himawari-8 Downloader
#
#
#
# This script will scrape the latest image from the Himawari-8 satellite, recombining the tiled image,
# converting it to a JPG which is saved in My Pictures\Himawari\ and then set as the desktop background.
#
# http://himawari8.nict.go.jp/himawari8-image.htm
#

ninnemana

package main

import (
    "fmt"
	"github.com/str1ngs/util/file"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"time"

dypsilon

Frontend Development

Attention: the list was moved to

https://github.com/dypsilon/frontend-dev-bookmarks

This page is not maintained anymore, please update your bookmarks.

---

shlomibabluki

# coding=UTF-8
from __future__ import division
import re

# This is a naive text summarization algorithm
# Created by Shlomi Babluki
# April, 2013


class SummaryTool(object):

petarpetrovic

# This is the complete example of nginx configuration file for ownCloud 5
# This config file configures proper rewrite rules for the new release of ownCloud
# Also, this config file configures nginx to listen on both IPv4 and IPv6 addresses
# If you want it to listen to IPv4 address only, use listen 80; instead of listen [::]:80

# First, we configure redirection to HTTPS (substitue owncloud.example.com with the proper address of your OC instance)

server {
  listen [::]:80;
  server_name owncloud.example.com;