Terviist! please, can you be more specific? Can you tell me who offers such services, or how to find them? I don't doubt the technical feasibility of this, but as it is presented so far, it sounds like one of those "urban legends" (you know: the story about the dog in the closet choking on the burglar's finger it had bitten off, or whatever that was...) I would like to know how much it really costs and how long it really takes, and what the success rate is (do you need a number of parts to ensure full ROM reconstruction), is it a destructive process (can you sneak the cracked part back into service?). And then I would like to hear these guys discuss what methods are better, more expensive, etc. Peter F. Klammer / pklammer@racom.com Racom Systems, Inc. / 6080 Greenwood Plaza Blvd. / Englewood, CO 80111 (303)773-7411 / FAX:(303)771-4708 / http://www.racom.com World's First Dual-Interface Symmetric-Access FRAM Smartcard > ---------- > From: Alexey Vladimirov[SMTP:avlad@MAILBOX.RIGA.LV] > Reply To: pic microcontroller discussion list > Sent: Tuesday, December 16, 1997 7:36 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: CODE SECURE WITH PIC? > > 15 Dec 97, zhuxh@cheerful.com writes to All: > > z> I am woundering if the code protection with PIC's is as secure as > z> promised by Microchip? > > Yes, due to Microchip promise only, that code protection exists, and > nothing > about actual strength of code protection. > > z> as far as I know, there is a company in Beijin that offers service > to > z> help decode the Microchip's PICs. The cost is about US$1000 for > each > z> chip! > > The same service you can also found in Moskow, Russia. They promise > any > protected PIC code reverse engineering with cost lower, than $1000 > (same price!) in one-two days. For PIC16C84 it can be done for almost > free and > for PIC16F8x price is lower, than $100. Probably, both companies use > some > technological backdoors in Microchip products. Sorry, I don't know any > technical details, only see advertisiments and know some cases of the > successfull using of this service. > > z> I am afriad my own coding with PICs will be copied by others one > day. > z> Do you have any idea on this? Is my worry unnecessary? > > The only things, that can protect you - change you product as > frequently, as > possible, add new features, new ideas and didn't try to obtain > superprofit. > If you need really protected product for security applications - use > special > security designed chips, not wide available microcontrollers. > > Alexey > > --- GoldED/2 2.50+ >