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Security features and certificates
The SCADA system shall support security features in accordance with IEC 62443, as well as the VDI 3699 and DIN 19235 guidelines.
SSL/TLS shall be available for security in the network.
Archived and written data shall not be modifiable; supplements or marked corrections shall nevertheless be possible.
Increased security requirements are imposed on the SCADA system: It shall be possible to use encrypted communication not only between the system components but also in the direction of the user interface.
It shall be possible to decrypt software components that have already been encrypted, such as images or scripts, in order to make minor changes in the system, and then store them again in encrypted form.
According to 21 CFR Part 11, certain FDA requirements must be met when using electronic recordings and signatures. The system must comply with these.
The SCADA system shall provide communication via the OPC UA standard, which is also guaranteed by means of a valid OPC UA certificate.
In addition, it shall be possible to change the data model used without having to perform a restart.