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 can, in principle, be embedded on a national identity card to support eID functionality. One important other application of eID’s are digital signatures. The use of smart cards (combined with secure terminals) allow the generation of so called qualified digital signatures as specified in the law. How should these two applications be combined on one smart identity card?

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