This white paper explored how iDirect Government has developed a secure execution environment capable of a FIPS 140-3 certification. By leveraging the architectural features of the Zynq UltraScale+ MPSoC and iDirect Governments previously certified cryptographic application, a strong cryptographic module can be created using only a single Zynq UltraScale+ MPSoC and associated peripherals. This paper was written in collaboration with our partner iDirect Government.