Martijn Dwars martijndwars

What I Know About PKI

Abstract Syntax Notation One (ASN.1)

Much of the data in the PKI world is stored in ASN.1 so a basic understanding is necessary. ASN.1 is a way to describe data by starting from primitive types and building up to more complex types. Do you remember Backus-Naur Form? What about writing XML schemas in XSD? It's the same concept.

Let's say we have a Widget. Every Widget has a model name, a serial number, and some inspection information with the name of the inspector and the dates of the inspections. Our Widget then looks like this in ASN.1:

Widget ::= SEQUENCE {
    model IA5String,

serialNumber INTEGER,

You don't have to delete your local branch.

Simply delete your remote tracking branch:

git branch -d -r origin/<remote branch name> (This will not delete the branch on the remote repo!)

See "Having a hard time understanding git-fetch"

there's no such concept of local tracking branches, only remote tracking branches.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Screencapture and animated gifs

I say "animated gif" but in reality I think it's irresponsible to be serving "real" GIF files to people now. You should be serving gfy's, gifv's, webm, mp4s, whatever. They're a fraction of the filesize making it easier for you to deliver high fidelity, full color animation very quickly, especially on bad mobile connections. (But I suppose if you're just doing this for small audiences (like bug reporting), then LICEcap is a good solution).

Capturing (Easy)

Launch quicktime player
do Screen recording

DualDev

Below you will find an overview of all changes made to the DualDev infrastructure since founding the company back in 2010. We hope this document clears up many of the technical and executive choices we've had to make in the past. News is noted from newest to oldest date.

2014

November - continuing development The move to AWS has been completed to a phase where we don't have to keep monitoring the platform 24/7, and where we can finally start trusting the platform again. We still have to move several services (including loadbalancers, DNS and other things), but we've continued development of a renewed website, face and customer panel. The service we offer, will be again fast, stable and futuristic, as you're used to from us, soon. Before we continue on building the new website, we still have two of the old servers in service for loadbalancing, backups and e-mail services. These will be retired the 28th of november (at night). The loadbalancing and backups have been moved. E-mail will also

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

	#!/bin/sh

	# check for where the latest version of IDEA is installed
	IDEA=`ls -1d /Applications/IntelliJ\ * \| tail -n1`
	wd=`pwd`

	# were we given a directory?
	if [ -d "$1" ]; then
	# echo "checking for things in the working dir given"
	wd=`ls -1d "$1" \| head -n1`

	#!/bin/sh
	echo Install all AppStore Apps at first!
	# no solution to automate AppStore installs
	read -p "Press any key to continue... " -n1 -s
	echo '\n'

	echo Install and Set San Francisco as System Font
	ruby -e "$(curl -fsSL https://raw.github.com/wellsriley/YosemiteSanFranciscoFont/master/install)"
	echo Install Homebrew, Postgres, wget and cask
	ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

	//
	// Write the mock request payload to a file for checking later...
	// newWrite() is the important it to ensure you get a new file each time.
	//
	def filename = "C:\\MyScratchFolder\\soapUI projects\\Testing\\procon\\mock_po_activity_request.xml"
	def file = new File(filename)
	def w = file.newWriter()

	w << mockRequest.requestContent
	w.close()

	import java.math.BigInteger;
	import java.security.PublicKey;
	import java.security.PrivateKey;
	import java.security.KeyFactory;
	import java.security.Security;
	import java.security.KeyPairGenerator;
	import java.security.KeyPair;
	import java.security.SecureRandom;
	import java.security.spec.PKCS8EncodedKeySpec;
	import java.security.spec.ECGenParameterSpec;