P3KI's Trinity Technology was inspired by an ISO standard¹⁾ published in 2006. It is a wish list by the automotive industry - an unfulfilled one that is. Leaving aside its outdated perimeter security paradigm, it spells out a number of important requirements:

1. There should be no need for an overall infrastructure to be shared by all security systems. For instance, it can't be expected that shared databases are installed to which the devices involved have access.
2. It should be possible to easily integrate existing security systems in the various domains without major modifications.
3. The additional security framework should not affect the security of each domain.
4. Devices with different security levels are considered. Breaking the security of a device with little protection should not affect the security of other devices.
5. It should be possible to use the framework even for devices with limited resources. This means that the provisions requested from the framework should be easy to handle.
6. The special situation of mobile devices with limited and non-permanent access to communication facilities are to be considered.

P3KI has taken this idea to the extreme in order to solve a number of hard real-world problems faced by industry, utilities, and pretty much everyone else suffering from the pains of certificate management or the unacceptable consequences of trying it.