An unexpected privacy risk of anonymous credentials
Anonymous credentials are a privacy enhancing technology that allow you to prove certain properties about yourself, without revealing your full identity. Examples are showing your age, your gender, whether you are a member of a certain group, or your nationality, among others. Privacy advocates are advocating the widespread use of such technology. However, if a worldwide infrastructure for anonymous credentials would exist, this would actually create a funny privacy problem.
(more…)
On using identity cards to store anonymous credentials.
In a previous blog post I argued that identity cards should not be used to store anonymous credentials. The reason being that users may not believe that a card that is used to identify them in one context, can also be used anonymously in another. But last Friday, in a meeting with Martijn Oostdijk among others, I heard an interesting reason why anonymous credentials perhaps should be stored on an identity card anyway.
The Future of Authenticating Websites (FAWN) – 2
Following the discussion at the Radboud University on the future of authenticating websites, I lead a similar discussion at TNO. This again lead to many remarks and suggestions, many of which were also raised in Nijmegen. But a few new observations were made as well.
Spamming the Internet of Things
On the moral basis for privacy protection.
Just read an interesting paper on the Internet of Things and privacy by Jeroen van der Hoven and Pieter Vermaas. According to them, privacy regulation is justified, because it aims to reach the following moral goals.
leave a comment