IRMA: Using attribute based credentials to stop resale of tickets.
In the IRMA (I Reveal My Attributes) project we are working to make attribute based credentials practical. One of the things we have been looking at is possible use cases for such credentials,...
View ArticleProving your age with IRMA (without revealing you’re a dog)
In the IRMA (I Reveal My Attributes) project we are working to make attribute based credentials practical. IRMA provides very efficient implementations of such credentials on (contactless) smart cards....
View ArticleDoes a centralised eID service in the German eID system pose a privacy risk?
Ideally, a relying party that needs to verify certain attributes of a user would do so all by himself. However, in the new German eID system there are currently 7 so called eID service providers that...
View ArticleIRMA versus Frau Mustermann: the advantages of using attribute based...
In our IRMA project we develop a platform to support attribute based credentials (ABC) on a smart card. We believe the IRMA scheme is more secure and more flexible than the attestation based approach...
View ArticleIRMA versus Frau Mustermann, take 2: the advantages of attribute based...
In a previous blog post I discussed the difference in security and flexibility between attribute based credentials (used in our IRMA project) and the German eID system. Now I will discuss the...
View ArticleAttribute based credentials and digital signatures on a single eID
In our IRMA project we are implementing attribute based credentials on a smart card. In fact, we are developing a proof of concept for the Dutch Ministry of the Interior, to show that this technology...
View ArticleWhen will users drop their passwords (and move to a more secure form of...
Today I read an interesting paper by Marian Harbach and colleagues from the University of Hannover. They have studied the factors that influence the acceptance of new methods authentication online. In...
View ArticleIRMA en het risico van een online identificatieplicht
Via Twitter werd ik op deze interessante discussie gewezen op de mailinglist van de Piratenpartij. De discussie ging over het risico van een online identificatieplicht, die mede door ons onderzoek naar...
View ArticleThe future of IRMA: ideas to improve Attribute Based Credentials.
Attribute based credentials (ABCs) allow users to prove properties about themselves without disclosing any additional information, and without being traceable. ABCs therefore implement privacy friendly...
View ArticleUsing attribute based credentials for auditable access control
In a recent (dutch) blog post I argued that the latest change in plans for a nationwide eID system in the Netherlands spelled trouble. Instead of the proposed solution I argued that a system using...
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