@inproceedings{JuerjensOchoaSchmidtetal.2011, author = {J{\"u}rjens, Jan and Ochoa, Mart{\´i}n and Schmidt, Holger and Marchal, Lo{\"i}c and Houmb, Siv Hilde and Islam, Shareeful}, title = {Modelling Secure Systems Evolution: Abstract and Concrete Change Specifications}, series = {Formal Methods for Eternal Networked Software Systems: 11th International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM 2011, Bertinoro, Italy, June 13-18, 2011. Advanced Lectures}, volume = {LNCS, 6659}, booktitle = {Formal Methods for Eternal Networked Software Systems: 11th International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM 2011, Bertinoro, Italy, June 13-18, 2011. Advanced Lectures}, editor = {Bernardo, Marco and Issarny, Val{\´e}rie}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {978-3-642-21455-4}, doi = {10.1007/978-3-642-21455-4_15}, pages = {504 -- 526}, year = {2011}, abstract = {Developing security-critical systems is difficult, and there are many well-known examples of vulnerabilities exploited in practice. In fact, there has recently been a lot of work on methods, techniques, and tools to improve this situation already at the system specification and design. However, security-critical systems are increasingly long-living and undergo evolution throughout their lifetime. Therefore, a secure software development approach that supports maintaining the needed levels of security even through later software evolution is highly desirable. In this chapter, we recall the UMLsec approach to model-based security and discuss on tools and techniques to model and verify evolution of UMLsec models.}, language = {en} } @inproceedings{JuerjensMarchalOchoaetal.2011, author = {J{\"u}rjens, Jan and Marchal, Lo{\"i}c and Ochoa, Mart{\´i}n and Schmidt, Holger}, title = {Incremental Security Verification for Evolving UMLsec models}, series = {Modelling Foundations and Applications: 7th European Conference, ECMFA 2011, Birmingham, UK, June 6 - 9, 2011 Proceedings}, volume = {LNCS, 6698}, booktitle = {Modelling Foundations and Applications: 7th European Conference, ECMFA 2011, Birmingham, UK, June 6 - 9, 2011 Proceedings}, editor = {France, Robert B. and Kuester, Jochen M. and Bordbar, Behzad and Paige, Richard F.}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {978-3-642-21469-1}, doi = {10.1007/978-3-642-21470-7_5}, pages = {52 -- 68}, year = {2011}, language = {en} }