Comments on: Decapsulated devices http://www.flylogic.net/blog/?p=10 Mon, 06 Sep 2010 15:28:41 -0700 hourly 1 http://wordpress.org/?v=3.0.1 By: admin http://www.flylogic.net/blog/?p=10&cpage=1#comment-1890 admin Mon, 06 Sep 2010 15:28:41 +0000 http://www.flylogic.net/blog/?p=10#comment-1890 We mean we dont want to explain in details why we mix chemicals together to better break down the various barriers protecting the die. If you told me you use fuming sulfuric we would tell you that your devices are dirty but you get your job done ;) We mean we dont want to explain in details why we mix chemicals together to better break down the various barriers protecting the die. If you told me you use fuming sulfuric we would tell you that your devices are dirty but you get your job done ;)

]]> By: Chad http://www.flylogic.net/blog/?p=10&cpage=1#comment-1876 Chad Tue, 31 Aug 2010 16:57:39 +0000 http://www.flylogic.net/blog/?p=10#comment-1876 When you say proprietary process, you mean fuming sulfuric acid and a hot plate. I do this all the time, it's not a secret process, it's a well known industry standard practice. I am not trying to be a dick, but by saying that it's some sort of secret you were just begging to get called out. When you say proprietary process, you mean fuming sulfuric acid and a hot plate. I do this all the time, it’s not a secret process, it’s a well known industry standard practice.

I am not trying to be a dick, but by saying that it’s some sort of secret you were just begging to get called out.

]]> By: erik hagen http://www.flylogic.net/blog/?p=10&cpage=1#comment-1214 erik hagen Wed, 23 Apr 2008 14:32:36 +0000 http://www.flylogic.net/blog/?p=10#comment-1214 oscar Says: November 4th, 2007 at 4:20 pm I know you do this for a living and won’t like to share your secrets, but could you please explain some other processes that can be done to a chip to de-cap it? I have always been interested in seeing the insides of some telephone cards that I have admin Says: November 5th, 2007 at 7:43 pm The acids we use are very dangerous and will burn if you come in contact with them. You said you use HF acid, is that how u "burn off" the encapsulation? I read some articles in Holland about 7 years ago,Telegraaf newspaper saturday edition, that someone at the Twenthe university managed to "micro probe" a smartcard and was able to reset config bits, by using a certain voltage, one disadvantage, he needed more then one card to succeed. He used acid aswell to etch true the plasic. 23th april 2008 oscar Says:

November 4th, 2007 at 4:20 pm
I know you do this for a living and won’t like to share your secrets, but could you please explain some other processes that can be done to a chip to de-cap it?

I have always been interested in seeing the insides of some telephone cards that I have

admin Says:

November 5th, 2007 at 7:43 pm
The acids we use are very dangerous and will burn if you come in contact with them.

You said you use HF acid, is that how u “burn off” the encapsulation?

I read some articles in Holland about 7 years ago,Telegraaf newspaper saturday edition, that someone at the Twenthe university managed to “micro probe” a smartcard and was able to reset config bits, by using a certain voltage, one disadvantage, he needed more then one card to
succeed.
He used acid aswell to etch true the plasic.
23th april 2008

]]> By: unk http://www.flylogic.net/blog/?p=10&cpage=1#comment-68 unk Sat, 01 Dec 2007 03:06:29 +0000 http://www.flylogic.net/blog/?p=10#comment-68 sweeeeet sweeeeet

]]> By: cur1n http://www.flylogic.net/blog/?p=10&cpage=1#comment-34 cur1n Fri, 23 Nov 2007 17:01:38 +0000 http://www.flylogic.net/blog/?p=10#comment-34 Burn Burn Burn! Burn Burn Burn!

]]> By: Oscar http://www.flylogic.net/blog/?p=10&cpage=1#comment-20 Oscar Wed, 07 Nov 2007 22:57:28 +0000 http://www.flylogic.net/blog/?p=10#comment-20 Awesome, thanks! I'll be looking forward to reading that write-up. Awesome, thanks! I’ll be looking forward to reading that write-up.

]]> By: admin http://www.flylogic.net/blog/?p=10&cpage=1#comment-19 admin Tue, 06 Nov 2007 02:43:35 +0000 http://www.flylogic.net/blog/?p=10#comment-19 The acids we use are very dangerous and will burn if you come in contact with them. <img src="http://www.flylogic.net/chippics/phonecards/st1355D_small.jpg" alt="ST1355D Mexican Phone card." /> We happened to have a telephone card from Mexico that we scanned in. This particular card used an ST 1355 serial memory. The die revision is 'D'. We also have a Canadian phone card that has not been imaged of the same die but instead is revision 'A' of the silicon. Rev 'A' = 1993 Rev 'D' = 2001 We immediately see a security related change between the two parts. We'll get the older part imaged and do a write up sometime soon. Click on this link for a larger version of the pic: http://www.flylogic.net/chippics/phonecards/st1355D_large.jpg The acids we use are very dangerous and will burn if you come in contact with them.

ST1355D Mexican Phone card.

We happened to have a telephone card from Mexico that we scanned in. This particular card used an ST 1355 serial memory. The die revision is ‘D’. We also have a Canadian phone card that has not been imaged of the same die but instead is revision ‘A’ of the silicon.

Rev ‘A’ = 1993
Rev ‘D’ = 2001

We immediately see a security related change between the two parts. We’ll get the older part imaged and do a write up sometime soon.

Click on this link for a larger version of the pic: http://www.flylogic.net/chippics/phonecards/st1355D_large.jpg

]]> By: oscar http://www.flylogic.net/blog/?p=10&cpage=1#comment-16 oscar Sun, 04 Nov 2007 23:20:38 +0000 http://www.flylogic.net/blog/?p=10#comment-16 I know you do this for a living and won't like to share your secrets, but could you please explain some other processes that can be done to a chip to de-cap it? I have always been interested in seeing the insides of some telephone cards that I have ;) I know you do this for a living and won’t like to share your secrets, but could you please explain some other processes that can be done to a chip to de-cap it?

I have always been interested in seeing the insides of some telephone cards that I have ;)

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