so i recommend those of you who interested in same stuff to have a look at this great book i'v been reading past weeks<br>"BIOS Disassembly Ninjutsu Uncovered"<br><br>the real problem with embedded reversing and modifications is the wide range of chip and microcode developers and lack of "Processor Modules" although IDA is supporting alot of DSPs , but first their source code is not available and you cannot continue on some specific proc module to make it work on other variations , and second , its not that easy to develop your own proc module from every chip you got from scratch and , third , it does not support any fpga for now . i faced alot of difficulties when i was trying to understand , and maybe do some modifications on some gps microcode a while back i knew the code is compressed but couldnt manage to find out how , knew its using some kind of crc and hash , but again it was not easy to figure out and the problem with hobbies is that they are not full time job ;)
<br><br>Regards<br>-mh<br><br><br><br><div class="gmail_quote">On Nov 23, 2007 1:49 AM, Hamid . K <<a href="mailto:elite_netbios@yahoo.com">elite_netbios@yahoo.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>Hello, <br>
<br>
Recently I`ve began research on portable media/devices<br>
and using them as attack vector (nothing new here) , but<br>
I`ve tried to extend some old known tricks and add new<br>
techniques to this field . Since I can`t join cons for now,<br>
I`ve summed up some of results in a blog post .<br>
below is link to the post in case you`re interested.<br>
<br><span>
<a href="http://hkashfi.blogspot.com/2007/11/embedded-fun-hacking-mp3-players-muvo.html" target="_blank">http://hkashfi.blogspot.com/2007/11/embedded-fun-hacking-mp3-players-muvo.html</a></span><br>
<br>
comments are really appreciated .<br>
<br>
<br>
Hamid.K</div></div><div class="WgoR0d"><br>
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