1. Directive 1999/93/EC of the European Parliament and of the Council of 13 December 1999 on a Community Framework for electronic Signatures, December, 1999.
2. Secure Signature–Creation Devices ’EAL4+’, CEN Workshop Agreement CWA14169, March, 2002.
3. Commimssion Decision of 14 July 2003 on the publication of reference numbers of generally recognised standards for electronic signature products in accordance with directive 1999/93/EC of the European parliament and of the council, Official Journal of the European Union, L 175/45, July 15, 2003.
4. Electronic Signatures and Infrastructures (ESI); Algorithms and Parameters for Secure Electronic Signatures, ETSI Special Report SR 002 176, Version 1.1.1, March, 2003.
5. J. Leiwo, A technique for modeling and analysis of Common Criteria security environments and security objectives, in: Proceedings of the 9th Nordic Workshop on Secure IT Systems (Nordsec 2004), 2004.