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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

442 ITU‐T's Technical Reports and Specifications