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Stratix IV security anti tamper bit

Altera_Forum
Honored Contributor II
‎02-10-2010 02:16 PM
1,118 Views

Another simple one that wasn't wortyh raising and SR for. 

 

I'm tasked with investigating design security for our Startix IV device. 

 

Q. When using the non-volitile key aproach, if you set the tamper protection bit the Stratix FPGA will only accept an encrypted configuration file. I'm assuming here that this tamper protection bit, as is the case with the non-volitile key, cannot be unset. Would it defeat the object if it could?
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Altera_Forum
Honored Contributor II
‎03-30-2010 01:08 PM
409 Views

According to the document  

 

 

10. configuration, design security, and 

remote system upgrades in stratix iv 

devices 

 

 

which I cannot link to here because I don't have 5 posts (this is very stupid) setting the tamper protection bit is irreversible. Search the Altera site for this document to read it.
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