442 ITU‐T's Technical Reports and Specifications Source: FG‐SSC deliverable, Technical Report on overview of smart sustainable cities infrastructure. Ibid. Figure 2 – Architecture of an information security system for SSC SSC information security infrastructure The information security infrastructure constitutes the technical foundation of the entire system, and as such, it provides a large number of security functions. The tasks of the information security infrastructure centers include disaster recovery, emergency monitoring, key management, security management, security evaluation and identity management (Figure 3). Source: FG‐SSC deliverable, Technical Report on overview of smart sustainable cities infrastructure. Ibid. Figure 3 – Information security infrastructure of SSC