Evaluation of the functional survivability of the electronic signature verification key certificate management system based on various architectures
The article provides a comparative assessment of the functional survivability of the electronic signature verification key certificate management system based on two-pole and multi-pole architectures. A threat model is constructed in the form of a tree of events that cause a system based on various architectures to fail. The integral survival rate of the system was chosen as the main indicator. In view of the complexity of the system under consideration, the mathematical apparatus used in the logical-probabilistic method was chosen to evaluate this indicator. The results obtained, taking into account the selected assumptions and limitations of the comparative assessment, are reflected both in numerical terms and in the form of graphs.