Blog

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This is my blog. It may have something for you.

Version 2.0 of RSA module

A guy named Dave sent me an email today, telling me that my RSA implementation was rather insecure due to the use of the “pickle” Python module. Fortunately I had some nice improvements by Barry Mead already in version control, eagerly waiting to be released.

New website

My old website has been online for april 2006. Since that time it has grown considerably. My focus also moved from software engineering to photography, and this new design makes that a lot clearer.

Mijn foto's op Caro Emerald DVD

Caro Emerald in Hoogwoud Caro Emerald komt met een platinum release van haar CD Deleted Scenes from the Cutting Room Floor, met daarbij “een overvolle dvd met extra video-, audio- en fotomateriaal”.

Tentoonstelling in Noorderpark

UPDATE 2019: Helaas is de Noorderpark website down. Speciaal voor Crisiskunst in het Noorderpark heb ik een foto gemaakt, die nu in de Noorderparkkamer hangt. Elke zondag zijn hier interessante dingen te beleven, gratis en toegankelijk voor iedereen.

I fixed my camera!

In Prague I bought an old Flexaret IV, a twin-lens reflex camera from the 1960’s. I was very happy with it, until it gave a short “click” even with a shutter speed of 1 sec.

I'm a Master of Science!

Yesterday I received my certificate from the Utrecht University! I’m now officially a Master of Science or Magister Scientiæ in Computer Science.

Extending Selenium from the client driver

Selenium is a web page testing tool that we use a lot at my work. It can be extended by supplying it with a user-extensions.js file. We’re extending our test application to include support for Selenium Grid.

360 panorama: Amsterdam Central Station

UPDATE 2019: check out my other panoramas on stuvelfoto.nl! This panorama shows something that I quite often see; the people here are waiting for the ferry to cross the IJ (the lake that separates the northern part of Amsterdam from the rest).

Sigma 4.5mm Fisheye - What's it like?

Sigma 4.5mm f/2.8 fisheye by Sybren A. Stüvel, on Flickr This lens is insane. It’s the world’s first circular fisheye lens for APS-C sized sensors, and the first fisheye lens that I own.

Graduated as MSc!

Last monday I defended my thesis and succeeded! I got an 8.5 (out of 10) as the grade, with which I’m very happy. This finalizes my Game & Media Technology computer science master at the Utrecht University.