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Author Topic: Issue with Enigma link decryptor Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 07-15-2014 07:36 PM                     It even comes with a brochure ;-) http://ftp.uslinc.com/ftp/Products/EP-100/Documents/Manual/EP-100_manual_140206.pdf - Carsten  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 07-21-2014 11:25 AM                     quote: Steve Guttag Just a note to say I have now revived one of our bricked Enigmas from the dead (it was kept charged after it bricked). Enigma 1.8 brought it back to life...didn't even have an "Almost Full" warning either. It was ready to run movies once updated. Thought I would chime in with another example. I had an enigma go into "security logs full" without warning this morning on a Barco. Updating to 1.8 (followed by a projector/server reboot) immediately brought it back to life ready to go just as Steve reported.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-21-2014 01:15 PM                     if I were a customer who lost money and shows on this issue, I would be seriously angry.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-21-2014 01:18 PM                     Oh...they already are!  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 07-21-2014 01:31 PM                     I haven't had this problem.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 08-06-2014 02:51 AM                     What happens when the battery on the Enigma goes flat? Will the board become completely unresponsive? I got an old 'logs full' Enigma out of the rubbish but the projector says 'no communication' (it was giving the 'logs full' error before). Can I assume that it is just too late?  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 08-06-2014 03:31 AM                     Yup, the battery died since it wasn't recharged. Note it takes about 48 hours to do a full charge on one of those batteries.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 08-06-2014 12:40 PM                     Thanks Brad. I'll use it as a doorstop. TI could have at least told us "we'll fix it sooner or later" and we would have kept them charged.  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 08-06-2014 06:37 PM                     I'm wondering, why does the Enigma actually need a battery? Both configuration and logs are stored on internal flash and it also doesn't need to keep track of time... So, is it really just for tamper detection?  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 08-07-2014 06:28 AM                     Actually no...it DOES keep track of time and has the same time adjustment restrictions on it. Its clock and the "secure clock" are actually different clocks. All of the OEMs have a means to set the Enigma clock via their own programs plus one, if they have the right access, can set the clock directly using TI's program. What is lost is its certificate once the battery dies. No certificate, no Enigma. Since it is the high-security thing it is going to be the most fussy. There was no promise that TI would "fix" the problem. What they did seems so obvious (not require a sequential log storage areas...skip over anything corrupt) one would think they would have gotten that one on the first "bricked" Enigma that came back under warranty. I think TI was VERY asleep at the wheel on the Enigma. It has been a nuisance since day one. It could self-corrupt, each fix seems to be relating to that and this final one was basically ignoring its self-corruption. What we don't know is with Enigma 1.8, if one runs a script like Dolby's getAllProjectorLogs, if it will force read all of the logs such that the corrupted entries get cleared. I'm crossing my fingers that it does. However with 8192 entries and only 512 needing to be available to avoid an "almost full" condition, this will probably push any future potential problems out beyond the life of the projector.  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 08-07-2014 01:48 PM                     quote: Steve Guttag Actually no...it DOES keep track of time and has the same time adjustment restrictions on it. Its clock and the "secure clock" are actually different clocks. All of the OEMs have a means to set the Enigma clock via their own programs plus one, if they have the right access, can set the clock directly using TI's program. And for what reason does it need to keep track of time on its own? To check if the certificate (which actually shouldn't expire) is still valid? And this certificate and private key, are you sure it's only stored in volatile memory? Because that sounds somehow utterly awkward... Although, I could be one of their paranoid black box security measures... If you open the seal it will kill the power and the memory will lose its content within a few seconds.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 08-07-2014 02:22 PM                     The log entries are done based on IT's time, not the mediablock's secure time. The Enigma is a self-contained unit. It does have its own tamper switches too...which will also clamp it down tight. Oh, that device is all about paranoia. I'm not defending it in the slightest either.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 08-07-2014 02:42 PM                     TI probably did not want any of these security relevant modules to circulate as spare parts year after year in the wild, I could imagine. - Carsten  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 08-07-2014 03:25 PM                     I believe they just don't care. Thousands of "faulty" enigmas have been replaced worldwide. Customers have paid for them till the last penny. Happy days.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 10-27-2014 01:47 PM                     Christie has issued 4.2.2 (2) which contains Enigma 1.8.24 which should end this silliness once and for all. All three DLP companies now have an Enigma 1.8 update.  |  IP: Logged

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