Austin Lesea wrote:
> What is missing from all those press releases:
>
> *Disclaimer: non-volatile poly-efuse EM technology can be read out by a
> microscope using polarized light for a total investment of less than $5,000

... and that may not quite be the open door you paint.

Have _you_actually_cloned_ a/any device for $5000, or is this more
generic "Austin Arm waving" ?

[Until Xilinx have non volatile fuses, then the spin will change ? ]

Being able to read the physical fuses is some way from being able to
duplicate them, or reverse the key those fuses create.
It is not likely that Altera simply mapped Fuse1 = Encryption bit1, etc.

So, to descramble that, will need a LOT of devices, and much more time....

With fully volatile security, yes, the code within is secure,
but the system is _very_ open to spoofing type attacks, so again
security can be a mirage....

-jg