Detecting malicious hardware by measuring radio frequency emissions

A computer program product including computer usable program code embodied on a computer usable medium, the computer program product including:

• computer usable program code for measuring radio frequency emissions at a plurality of positions relative to a trusted unit of a particular electronic device during operation of the trusted unit;
• computer usable program code for measuring radio frequency emissions at the same plurality of positions relative to a second unit of the particular electronic device;
• computer usable program code for comparing, for each of the plurality of positions, the radio frequency emissions measured from the second unit to the radio frequency emissions measured from the trusted unit;
• and
• computer usable program code for determining whether there is any frequency at which the measured amplitude of the radio frequency emissions from the second unit and the measured amplitude of the radio frequency emissions from the trusted unit exhibit a statistically significant difference.