Arjen
Blog posts en open-source projecten
Over
Arjen
- Security software engineer
- arjen@tweedegolf.com
In 2021 maakte Arjen de overstap naar Tweede golf. Als expert op het gebied van security met een achtergrond in pentesting gaat hij zich met name focussen op IRMA en andere security gerelateerde projecten. Daarnaast wil Arjen zijn kennis verder verbreden door ervaring op te doen met o.a. Rust backends en JavaScript frontend frameworks.
Arjen is een echte problem solver. Hij loste de laatste jaren talloze ‘Hack The Box’ challenges op en de Dr. Denker kerstpuzzel van het Dagblad van het Noorden blijft nooit lang liggen.
Als hij niet achter zijn computer zit is Arjen graag aan het sporten (zwemmen, hardlopen, fietsen) of thuis aan het klussen.
Blog posts
Security headers: How to go from F to A+
Why we replaced Google Analytics with Matomo, and why you should too
When you enabled Google Analytics (GA) on your website maybe you thought "I don't really have another viable option". Or maybe you thought "the negative effect on my visitors isn't that bad, is it?" Both are relatable, but recently Data Protection Authorities have put GA under a microscope and concluded it actually is pretty bad. Some things in GA violate the GDPR. Apart from the question of whether it is legal or not, the fact that your visitors are tracked across the internet - we feel - is just awful. And, as it turns out, you do have options.
Cryptify: your identity ís the key
Open-source projecten
TGuard
TGuard is a web-based sending and decrypting service for irmaseal-encrypted messages that is currently in development at Tweede Golf.
TGuard utilizes IRMA to allow a user to encrypt messages client-side. These messages can be decrypted client-side once the receiver proves to be the owner of attributes the message was encrypted for, like an e-mail address, name, or an identifying number.

ID-contact
For ID Contact we researched the possibilities of digital identification: how can residents organize their personal government affairs in a simpler and more reliable way? By telephone, via chat or via a video call.
The ID Contact innovation pilot is a collaboration between the municipalities of Arnhem, Nijmegen and the Drechtsteden and knowledge partners such as the Tax Authorities and iHub (Radboud University).
Within the ID Contact team we developed the software that makes secure digital identification possible.
