All the encryption cores listed on this page are proven in silicon, both FPGA and ASIC and licensed to multiple customers. AES has been licensed nearly 50 times.
A good starting point to use these IP cores is to read the overview document available on the right.
All these cores are subject to Australia Export Control regulations.
It is possible to use these cores for civilian applications in all countries with the exception of Libya, North Korea, Iraq, Cuba, Iran, Sudan and Syria.
These cores can be used for military applications in the US.
Please inquire for military uses in other countries.