A trustworthy system is an information system or product implemented as either hardware and/or software that produces reliable and authentic records. These records are protected against modification and additionally ensure the technical and cryptographic security of the processes supported by them.
BS EN 419231 specifies a protection profile for trustworthy systems supporting time stamping.
BS EN 419231 on electrical shore connection is useful for:
The TOE operational environment is composed of an operating system, other software applications, drivers, and an external UTC time source that is considered to be trusted by the TOE. When a cryptographic module is being used, it is outside of the TOE perimeter.
BS EN 419231 specifies a protection profile for a software component that is part of a time stamping system that provides time-stamp tokens to requesters. The TOE is expected to be protected by physical and organizational protection measures implemented by the TOE environment. Those measures are expected to restrict the TOE physical access (e.g. for administration purposes) to authorized persons only and are expected to require dual control.
BS EN 419231 specifies additional policy and security requirements relating to the operation and management practices of TSPs issuing time-stamps.
FprEN 419231