Search for person "Arjen Lenstra"

Open Source Lobbying, tips from the trenches

From one angry e-mail to writing national policy on open…

• 60 min
• 2007-12-29
• 23
• Arjen Kamphuis

Opensource policies for governments

What we learned in the Netherlands

• 44 min
• 2010-05-24
• 38
• Arjen Kamphuis

Energie-Hacken: Dynamische Zelfopslag en Power-Tech

• Talks
• 63 min
• 2024-02-11
• 272
• Arjen Halma

MD5 considered harmful today

Creating a rogue CA Certificate

• 61 min
• 2008-12-30
• 751
• David Molnar, Marc Stevens, Arjen Lenstra, Benne de Weger, Alexander Sotirov, Jacob Appelbaum and Dag Arne Osvik