--- In lpc2000@yahoogroups.com, "jayasooriah" <jayasooriah@y...> wrote: > > There is a technique called JTAG boundary scanning. From memory, (I > did this some years ago) boundary scanning does not require the target > to come out of reset. In such a system, the "ememy" is all over the > code long before the processor even wakes up, and thus how quickly it > takes to secure flash becomes irrelevant. > > Incidentally, the unavailablity of BSDL files (for LPC devices) does > not prevent this type of attack. There are methods by which one can > "discover" boundary architecture by blind scanning. > It is really hard to believe that any manufacturer of high volume systems would buy a component with missing BSDL files! That would make tests costs and time too high. Are you sure that major manufacturers can not get BSDL files for LPC parts? -- Dave
Message
Re: Flash Security Clarification --- some sad facts
2005-12-25 by derbaier
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