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Design >> RF Design >> How to power on a power on (activate) a backdoor core via RF?
https://designers-guide.org/forum/YaBB.pl?num=1463581914

Message started by vicm6799 on May 18^th, 2016, 7:31am

Title: How to power on a power on (activate) a backdoor core via RF?
Post by vicm6799 on May 18^th, 2016, 7:31am

Ok lets suppose there is a backdoor system embedded on a processor or CPU IC. This system (core, embedded os) can be activated only by RF. I don't know the frequency (range) which it uses. So my question is would there be any way to activate this backdoor system via RF ? Suppose the pass band features of the band-pass filter can be measured with the use of network analyzer to measure its S12 or S21 parameters. This gives an idea of the frequency range this system uses.