TY - JOUR T1 - SoREn, How Dynamic Software Update Tools Can Help Cybersecurity Systems to Improve Monitoring and Actions JF - JUCS - Journal of Universal Computer Science JO - jucs M3 - 10.3897/jucs.66857 VL - 28 AU - Martinez, Sébastien AU - Gransart, Christophe AU - Stienne, Olivier AU - Deniau, Virginie AU - Bon, Philippe Y1 - 28/01/2022 UR - https://doi.org/10.3897/jucs.66857 N2 - Because stopping a service to apply updates raises issues, Dynamic Software Updating studies the application of updates on programs without disrupting the services they provide. This is acheived using specific mechanisms operating updating tasks such as the modification of the program state. To acheive transparency, Dynamic Software Updating systems use pre-selected and pre-configured mechanisms. Developers provide patches that are transparently converted to dynamic updates. The cost of such transparency is often that applied patches cannot modify the general semantic of the updated program. Allowing dynamic modification of the general semantic of a running program is rarely considered.In the context of protection of communications between moving vehicles and uncontrolled infrastructure, SoREn (Security REconfigurable Engine) is designed to be dynamically reconfigurable. Its semantics can transparently be modified at runtime to change the security policy it enforces. Administrators can supply new policies to trigger a reconfiguration, without developing new components. This paper details and discusses the design of SoREn, its meta-model linked to cybersecurity business concepts and its automatic reconfiguration calculator allowing transparent application of reconfigurations. PB - Journal of Universal Computer Science SP - 27-53 SN - 0948-695X SN - 0948-6968 IS - 1 ER -