The idea is not to USE Krolypto, but to check its license/policies on foreign use:
The Krolypto software is subject to United States export controls. This software may not be sold, exported or re-exported (1) into (or to a national or resident of) Iran, Iraq, Libya, Serbia, Sudan, North Korea, Cuba, Syria, or any other country to which the United States has embargoed goods; or (2) to anyone on the U.S. Treasury Department's list of Specially Designated Nationals or the U.S. Commerce Department's Table of Denial Orders. For more information on the U.S. Export Administration Regulations (EAR), 15 C.F.R. Parts 730-774, and the Bureau of Export Administration ("BXA"), please see the BXA homepage. By downloading this software, you certified the following as per U.S. export laws:
* I understand that this software and its underlying technology is subject to United States Government export controls under the U.S. Export Administration (EAR);
* I am not a national or resident of an ineligible destination country under the EAR or U.S. sanctions regulations (Iran, Iraq, Libya, Serbia, Sudan, North Korea, Cuba, Syria);
* I am not located in an ineligible destination country under the EAR or U.S. sanctions regulations (Iran, Iraq, Libya, Serbia, Sudan, North Korea, Cuba, Syria);
* I am not a Denied Party, Specially Designated National, or other person or entity prohibited from receiving exports by U.S. law;
* I will not sell, export or re-export this software and other licensed materials to any prohibited destination, entity or individual without the necessary export license(s) from the U.S. Government. "