The security should be commiserate with the value of the assembly.

One customer mechanically removed any programmed device before it left the
building even it it destroyed the PCA, +$30k each.

Another added iron oxide to the potting to obscure the PCA.

If the device ends up intact in the hands of someone willing to spend the
time and money to reverse engineer it. It will be reverse engineered.

Using fake counterfeit chips, loops that erase programs, obscuring schemes,
highly engineered customised devices can all be defeated.  What is is worth?
There are legendary stories of a number of reverse engineered devices.
Including PCB's with poorly incorporated EC's on the original showing up in
the counterfeitt.

Is there a way to keep the device out of the unintended hands?


On Wed, Apr 7, 2010 at 3:54 PM, Thayer, Wayne - IIW <[log in to unmask]>wrote:

> Send all of the ICs to chip counterfeiters and have them re-label them with
> the wrong part numbers!
>
> Wayne Thayer
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
> Sent: Wednesday, April 07, 2010 2:55 PM
> To: [log in to unmask]
>  Subject: [TN] Reverse engineering proofing
>
> Dear Technos,
>
>
>
> We want to prevent reverse engineering of a few products that we assemble,
> as much as we can. What are the proofing methods you use?
>
>
>
> An idea that came up was to cover the surface of the cards with potting. If
> this makes sense, what substance to use?
>
>
>
> Thanks,
>
>
>
> Ioan Tempea, ing.
> Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
> T | 450.967.7100 ext.244
> E | [log in to unmask] <mailto:[log in to unmask]>
> W | www.digico.cc <http://www.digico.cc/>
>
>
>  N'imprimer que si nécessaire - Print only if you must
>
>
>
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16for additional information, or contact Keach Sasamori at
> [log in to unmask] or 847-615-7100 ext.2815
> -----------------------------------------------------
>
> This e-mail and any files transmitted with it may be proprietary and are
> intended solely for the use of the individual or entity to whom they are
> addressed. If you have received this e-mail in error please notify the
> sender.
> Please note that any views or opinions presented in this e-mail are solely
> those of the author and do not necessarily represent those of ITT
> Corporation. The recipient should check this e-mail and any attachments for
> the presence of viruses. ITT accepts no liability for any damage caused by
> any virus transmitted by this e-mail.
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16for additional information, or contact Keach Sasamori at
> [log in to unmask] or 847-615-7100 ext.2815
> -----------------------------------------------------
>

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------