ThinkWiki - User contributions [en]

Talk:TCPA/TCG - Trusted or Treacherous

2005-07-04T20:35:01Z

84.191.140.76:

== Discussion about the article "Trusted or Treacherous" ==

Please add you comments here.

You can use the "Plus"(+)-Button next to the "edit"-button at the top of this page to add you comments at the right spot ;-)

--[[User:Pitsche|Pitsche]] 11:38, 4 Jul 2005 (CEST)

== Plagiarism? ==

Large parts of this article apparently consist of unattributed, near-verbatim excerpts from a SANE2004 paper by Weis, Lucks, and Bogk, [http://www.cryptolabs.org/CCC2004TCunendlich/WeisLucksBogkSane2004tcg12.pdf TCG 1.2 - fair play with the 'Fritz' chip?]. Regardless of whether one believes that general political/ethical concerns about Trusted Computing belong on a Thinkpad-specific site, wholesale copying of unidentified, and presumably copyrighted, material is not cool, and could get the whole project in trouble.

I would suggest that the non-original parts of this article be removed and replaced by an external link to the above-mentioned paper; any particularly crucial short excerpts (as permitted by "fair use") should be clearly identified as such. The specific information about how the TCG specifications are implemented on various Thinkpad models can stay, of course.

== The Source is under Creative Commons, isn't it? ==

Hello Andrzej,

yes, you are right, another version of this text on a website of the presentation of the annual chaos computer club is one of my sources, but I think, that one is under creative commons license by-nc-sa 2.0 de. And are the presentations of the chaos computer congress not also free unless the speakers don't want it??????

This license allows to copy, distribute, display, perform or modify the text as long as it is published under exactly the same creative commons license and licensees may not use the work for commercial purposes - unless they get the licensor's permission.

My problem was, I had a lot more sources in a different language than english and my first drafts were way to long!

It didn't worked to keep it that short but detailed, as Ruediger and Adreas wrote it.

But if you think, after my explanation the actual version is still problematic, I will delete it of course!

--[[User:Pitsche|Pitsche]] 21:12, 4 Jul 2005 (CEST)

----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej

----
Okay Andrzej, I will work on that and tell all of you about it in the coming days, if I have enough time for it.

Unless that, feel free to take out the critical passages of the article or modify it, if you have the time and if you want to do it.

But there is a problem: I slightly changed the text, put two sentence together to one etc. How can I now cite the source?

--[[User:Pitsche|Pitsche]] 21:38, 4 Jul 2005 (CEST)

----
No problem; just say that your ThinkWiki article is ''based on'' the Weis et al. paper, and give a reference. The parts of their text that you include don't have to be verbatim copies; indeed, the whole point is that you are creating a ''derived work'' (e.g., by bringing in material from other sources), which they supposedly explicitly allow in the CC license. To be on the safe side, you should probably also include a link to a web page documenting that the original text is indeed freely licensed, or say that you have personally obtained permission from the authors.

-- Andrzej
----
Agreed. There should be a general statement in the article about the source the article is derived from, or rather sources - i seem to have used different sources of information for some of my edits. ;-) I'll add mine on next edit.

Wyrfel.

== Thanks for your work, i like it ==

Hello Wyrfel,

thank you very much for editing and restructering of that article.

I think, I know know what you and Andrzej want and I will try in he next days, to change the article in that way, okay?

P.S.: I don't know, why I loose my logged-in status from time to time, perhaps my connection. I am sorry, that there are IP-Adresses instead of my unsername "pitsche", I hope, no one gets confused, which edit is by me and which one by someone else :-o

Sorry.

--[[User:Pitsche|Pitsche]] 21:15, 4 Jul 2005 (CEST)
----
About your login status: ThinkWiki doesn't cache logins. This means everytime your connection breaks or your browser closes you will have to login again. But don't worry, we can figure out what's from you and if not - it's a Wiki. ;-) I'm doing a lot of edits without being logged in as well.

Wyrfel.
----
== No exact TCG specifications needed ==

Hello again!

I am against writing about the specific specifications, because it will make the article longer and everybody, who is '''really''' interested in the specifications has several possibilities to get it for free in the WWW or from Cryptolabs.org or from the CCC.

--[[User:Pitsche|Pitsche]] 21:22, 4 Jul 2005 (CEST)
----
I think the TCG specifications should appear there somewhere. At least at current state of my knowledge about the subject i'd think that having them there is helpful for the user to understand what ESS 1 and 2 are capable of. Of course we shouldn't post the whole specs, but some really compressed summary, similar to the 'feature-list' in "TC - Trusted Computing". Pitsche, if you could point me to them i could do it. Also, a link to the original TCPA specs would be good. The links themselves should be added to the Links section.

That's it so far...i like the way we work on this.

Wyrfel.
----
One more thing...

I think the TCPA implementation in current ThinkPads is pretty harmless. At least at it's current software state. You just don't use it (respectively don't install the supporting software layer) and it never gets active. One interesting aspect of finding out what the chip is capable of is if it could be forced to be used by later software upgrades or not.

Wyrfel.
----

Active Protection System

2005-07-04T20:30:24Z

84.191.140.76:

{| width="100%"
|style="vertical-align:top;padding-right:20px;width:10px;" | [[Image:APS.jpg|IBM Active Protection System]] __NOTOC__
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
=== The Active Protection System ===
With the new series of Thinkpads IBM introduced the Active Protection System (APS) in 2003. The APS is a protection system for the Thinkpad's internal harddrive. A sensor inside the Thinkpad recognizes when the notebook is accelerated. A software applet then is triggered to park the harddisk. This way the risk of data loss in case of when the notebook is dropped is significantly reduced since the read/write head of the harddrive is parked and hence can't crash onto the platter when the notebook drops onto the floor.

The whole concept of the technology seems very advanced. For the first part, the hardware sensor is capable of not only recognizing acceleration of the notebook, but also (to a certain degree) of its whole orientation in space, relative to gravity's axis. Furthermore, having the actual control put into software, its functionality is extendable and it gives chance to implement features like the "ignore minor shocks" feature which is present in the Windows based control applet. (This feature prevents the harddrive from parking in case of minor regular shocks such as occur when in a train or car.)
</div>
|}

==Linux Support==
Linux support is in early development.

This feature definitely depends on software and there is no hardware or BIOS only way of making it work. A statement from IBM clearifies this:
"The APS system will require APS software to be installed on the
computer before it activates the harddrive parking . This means it will
not work on systems preloaded with Linux."

IBM made contradictory statements about their willingness to release the specifications of the hardware sensor and its API to the linux community or some developers. Although a lot of developers and other interested people from the OpenSource community actively contacted IBM to get the specs, in fact they never got them.

Meanwhile, some independent projects are making progress:
* Quoted from NewScientist.com: The latest Apple PowerBook laptops can be controlled with a gentle shake. Programmer Amit Singh has written code that lets him use the sensor to control software on the computer. The code is published at [http://www.kernelthread.com/software/ams/ www.kernelthread.com/software/ams/].

*There is a fairly detailed article about [http://www.almaden.ibm.com/cs/people/marksmith/tpaps.html reverse engineering the APS accelerometer interface] by Mark Smith from IBM Research. Apparently they even have a prototype Linux driver working, but cannot release the full source yet.

* The HDAPS project is dedicated to developing & testing a kernel module and a user space application. More info on this can be optained from the [https://lists.sourceforge.net/lists/listinfo/hdaps-devel HDAPS mailinglist and its archive]. The most recent version of the driver is currently at [http://lemonshop.dk/ibm_hpaps/ http://lemonshop.dk/ibm_hpaps/], which is most likely not going to be its permanent home. You can also find some of the coders working on this module in the #hdaps channel on irc.freenode.org.

==Related Links==
*[http://www.pc.ibm.com/presentations/us/thinkvantage/56/index.html?shortcut=aps& IBMs ThinkVantage™ Technologies Flash presentation - Active Protection System]
*[http://lemonshop.dk/ibm_hpaps/ HDAPS mailinglist archive]
*[http://lemonshop.dk/ibm_hpaps/ Temporary location of current HDAPS driver]

==Models featuring this Technology==
*ThinkPad {{R50}}, {{R50p}}, {{R51}}, {{R52}}
*ThinkPad {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
*ThinkPad {{X40}}, {{X41}}, {{X41T}}

[[Category:Glossary]]

Talk:TCPA/TCG - Trusted or Treacherous

2005-07-04T20:01:02Z

84.191.140.76: /* No exact TCG specifications needed */

== Discussion about the article "Trusted or Treacherous" ==

Please add you comments here.

You can use the "Plus"(+)-Button next to the "edit"-button at the top of this page to add you comments at the right spot ;-)

--[[User:Pitsche|Pitsche]] 11:38, 4 Jul 2005 (CEST)

== Plagiarism? ==

Large parts of this article apparently consist of unattributed, near-verbatim excerpts from a SANE2004 paper by Weis, Lucks, and Bogk, [http://www.cryptolabs.org/CCC2004TCunendlich/WeisLucksBogkSane2004tcg12.pdf TCG 1.2 - fair play with the 'Fritz' chip?]. Regardless of whether one believes that general political/ethical concerns about Trusted Computing belong on a Thinkpad-specific site, wholesale copying of unidentified, and presumably copyrighted, material is not cool, and could get the whole project in trouble.

I would suggest that the non-original parts of this article be removed and replaced by an external link to the above-mentioned paper; any particularly crucial short excerpts (as permitted by "fair use") should be clearly identified as such. The specific information about how the TCG specifications are implemented on various Thinkpad models can stay, of course.

== The Source is under Creative Commons, isn't it? ==

Hello Andrzej,

yes, you are right, another version of this text on a website of the presentation of the annual chaos computer club is one of my sources, but I think, that one is under creative commons license by-nc-sa 2.0 de. And are the presentations of the chaos computer congress not also free unless the speakers don't want it??????

This license allows to copy, distribute, display, perform or modify the text as long as it is published under exactly the same creative commons license and licensees may not use the work for commercial purposes - unless they get the licensor's permission.

My problem was, I had a lot more sources in a different language than english and my first drafts were way to long!

It didn't worked to keep it that short but detailed, as Ruediger and Adreas wrote it.

But if you think, after my explanation the actual version is still problematic, I will delete it of course!

--[[User:Pitsche|Pitsche]] 21:12, 4 Jul 2005 (CEST)

----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej

----
Okay Andrzej, I will work on that and tell all of you about it in the coming days, if I have enough time for it.

Unless that, feel free to take out the critical passages of the article or modify it, if you have the time and if you want to do it.

But there is a problem: I slightly changed the text, put two sentence together to one etc. How can I now cite the source?

--[[User:Pitsche|Pitsche]] 21:38, 4 Jul 2005 (CEST)

== Thanks for your work, i like it ==

Hello Wyrfel,

thank you very much for editing and restructering of that article.

I think, I know know what you and Andrzej want and I will try in he next days, to change the article in that way, okay?

P.S.: I don't know, why I loose my logged-in status from time to time, perhaps my connection. I am sorry, that there are IP-Adresses instead of my unsername "pitsche", I hope, no one gets confused, which edit is by me and which one by someone else :-o

Sorry.

--[[User:Pitsche|Pitsche]] 21:15, 4 Jul 2005 (CEST)

== No exact TCG specifications needed ==

Hello again!

I am against writing about the specific specifications, because it will make the article longer and everybody, who is '''really''' interested in the specifications has several possibilities to get it for free in the WWW or from Cryptolabs.org or from the CCC.

--[[User:Pitsche|Pitsche]] 21:22, 4 Jul 2005 (CEST)
----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej
----
Agreed. There should be a statement in the article about the source, or rather sources - i seem to have used different sources of information for some of my edits. ;-) I'll add mine on next edit.

Also, i think the TCG specifications should appear there somewhere. At least at current state of my knowledge about the subject i'd think that having them there is helpful for the user to understand what ESS 1 and 2 are capable of. Of course we shouldn't post the whole specs, but some really compressed summary, similar to the 'feature-list' in "TC - Trusted Computing". Pitsche, if you could point me to them i could do it. Also, a link to the original TCPA specs would be good. The links themselves should be added to the Links section.

Pitsche, about your login status: ThinkWiki doesn't cache logins. This means everytime your connection breaks or your browser closes you will have to login again. But don't worry, we can figure out what's from you and if not - it's a Wiki. ;-) I'm doing a lot of edits without being logged in as well.

That's it so far...i like the way we work on this.

Wyrfel.
----
One more thing...

I think the TCPA implementation in current ThinkPads is pretty harmless. At least at it's current software state. You just don't use it (respectively don't install the supporting software layer) and it never gets active. One interesting aspect of finding out what the chip is capable of is if it could be forced to be used by later software upgrades or not.

Wyrfel.
----

Talk:TCPA/TCG - Trusted or Treacherous

2005-07-04T20:00:37Z

84.191.140.76:

== Discussion about the article "Trusted or Treacherous" ==

Please add you comments here.

You can use the "Plus"(+)-Button next to the "edit"-button at the top of this page to add you comments at the right spot ;-)

--[[User:Pitsche|Pitsche]] 11:38, 4 Jul 2005 (CEST)

== Plagiarism? ==

Large parts of this article apparently consist of unattributed, near-verbatim excerpts from a SANE2004 paper by Weis, Lucks, and Bogk, [http://www.cryptolabs.org/CCC2004TCunendlich/WeisLucksBogkSane2004tcg12.pdf TCG 1.2 - fair play with the 'Fritz' chip?]. Regardless of whether one believes that general political/ethical concerns about Trusted Computing belong on a Thinkpad-specific site, wholesale copying of unidentified, and presumably copyrighted, material is not cool, and could get the whole project in trouble.

I would suggest that the non-original parts of this article be removed and replaced by an external link to the above-mentioned paper; any particularly crucial short excerpts (as permitted by "fair use") should be clearly identified as such. The specific information about how the TCG specifications are implemented on various Thinkpad models can stay, of course.

== The Source is under Creative Commons, isn't it? ==

Hello Andrzej,

yes, you are right, another version of this text on a website of the presentation of the annual chaos computer club is one of my sources, but I think, that one is under creative commons license by-nc-sa 2.0 de. And are the presentations of the chaos computer congress not also free unless the speakers don't want it??????

This license allows to copy, distribute, display, perform or modify the text as long as it is published under exactly the same creative commons license and licensees may not use the work for commercial purposes - unless they get the licensor's permission.

My problem was, I had a lot more sources in a different language than english and my first drafts were way to long!

It didn't worked to keep it that short but detailed, as Ruediger and Adreas wrote it.

But if you think, after my explanation the actual version is still problematic, I will delete it of course!

--[[User:Pitsche|Pitsche]] 21:12, 4 Jul 2005 (CEST)

----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej

----
Okay Andrzej, I will work on that and tell all of you about it in the coming days, if I have enough time for it.

Unless that, feel free to take out the critical passages of the article or modify it, if you have the time and if you want to do it.

But there is a problem: I slightly changed the text, put two sentence together to one etc. How can I now cite the source?

--[[User:Pitsche|Pitsche]] 21:38, 4 Jul 2005 (CEST)

== Thanks for your work, i like it ==

Hello Wyrfel,

thank you very much for editing and restructering of that article.

I think, I know know what you and Andrzej want and I will try in he next days, to change the article in that way, okay?

P.S.: I don't know, why I loose my logged-in status from time to time, perhaps my connection. I am sorry, that there are IP-Adresses instead of my unsername "pitsche", I hope, no one gets confused, which edit is by me and which one by someone else :-o

Sorry.

--[[User:Pitsche|Pitsche]] 21:15, 4 Jul 2005 (CEST)

== No exact TCG specifications needed ==

Hello again!

I am against writing about the specific specifications, because it will make the article longer and everybody, who is '''really''' interested in the specifications has several possibilities to get it for free in the WWW or from Cryptolabs.org or from the CCC.

--[[User:Pitsche|Pitsche]] 21:22, 4 Jul 2005 (CEST)
----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej
----
Agreed. There should be a statement in the article about the source, or rather sources - i seem to have used different sources of information for some of my edits. ;-) I'll add mine on next edit.

Also, i think the TCG specifications should appear there somewhere. At least at current state of my knowledge about the subject i'd think that having them there is helpful for the user to understand what ESS 1 and 2 are capable of. Of course we shouldn't post the whole specs, but some really compressed summary, similar to the 'feature-list' in "TC - Trusted Computing". Pitsche, if you could point me to them i could do it. Also, a link to the original TCPA specs would be good. The links themselves should be added to the Links section.

Pitsche, about your login status: ThinkWiki doesn't cache logins. This means everytime your connection breaks or your browser closes you will have to login again. But don't worry, we can figure out what's from you and if not - it's a Wiki. ;-) I'm doing a lot of edits without being logged in as well.

That's it so far...i like the way we work on this.

Wyrfel.
----
One more thing...

I think the TCPA implementation in ThinkPads is pretty harmless. At least at it's current software state. You just don't use it (respectively don't install the supporting software layer) and it never gets active. One interesting aspect of finding out what the chip is capable of is if it could be forced to be used by later software upgrades or not.

Wyrfel.
----

Talk:TCPA/TCG - Trusted or Treacherous

2005-07-04T19:56:43Z

84.191.140.76:

== Discussion about the article "Trusted or Treacherous" ==

Please add you comments here.

You can use the "Plus"(+)-Button next to the "edit"-button at the top of this page to add you comments at the right spot ;-)

--[[User:Pitsche|Pitsche]] 11:38, 4 Jul 2005 (CEST)

== Plagiarism? ==

Large parts of this article apparently consist of unattributed, near-verbatim excerpts from a SANE2004 paper by Weis, Lucks, and Bogk, [http://www.cryptolabs.org/CCC2004TCunendlich/WeisLucksBogkSane2004tcg12.pdf TCG 1.2 - fair play with the 'Fritz' chip?]. Regardless of whether one believes that general political/ethical concerns about Trusted Computing belong on a Thinkpad-specific site, wholesale copying of unidentified, and presumably copyrighted, material is not cool, and could get the whole project in trouble.

I would suggest that the non-original parts of this article be removed and replaced by an external link to the above-mentioned paper; any particularly crucial short excerpts (as permitted by "fair use") should be clearly identified as such. The specific information about how the TCG specifications are implemented on various Thinkpad models can stay, of course.

== The Source is under Creative Commons, isn't it? ==

Hello Andrzej,

yes, you are right, another version of this text on a website of the presentation of the annual chaos computer club is one of my sources, but I think, that one is under creative commons license by-nc-sa 2.0 de. And are the presentations of the chaos computer congress not also free unless the speakers don't want it??????

This license allows to copy, distribute, display, perform or modify the text as long as it is published under exactly the same creative commons license and licensees may not use the work for commercial purposes - unless they get the licensor's permission.

My problem was, I had a lot more sources in a different language than english and my first drafts were way to long!

It didn't worked to keep it that short but detailed, as Ruediger and Adreas wrote it.

But if you think, after my explanation the actual version is still problematic, I will delete it of course!

--[[User:Pitsche|Pitsche]] 21:12, 4 Jul 2005 (CEST)

----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej

----
Okay Andrzej, I will work on that and tell all of you about it in the coming days, if I have enough time for it.

Unless that, feel free to take out the critical passages of the article or modify it, if you have the time and if you want to do it.

But there is a problem: I slightly changed the text, put two sentence together to one etc. How can I now cite the source?

--[[User:Pitsche|Pitsche]] 21:38, 4 Jul 2005 (CEST)

== Thanks for your work, i like it ==

Hello Wyrfel,

thank you very much for editing and restructering of that article.

I think, I know know what you and Andrzej want and I will try in he next days, to change the article in that way, okay?

P.S.: I don't know, why I loose my logged-in status from time to time, perhaps my connection. I am sorry, that there are IP-Adresses instead of my unsername "pitsche", I hope, no one gets confused, which edit is by me and which one by someone else :-o

Sorry.

--[[User:Pitsche|Pitsche]] 21:15, 4 Jul 2005 (CEST)

== No exact TCG specifications needed ==

Hello again!

I am against writing about the specific specifications, because it will make the article longer and everybody, who is '''really''' interested in the specifications has several possibilities to get it for free in the WWW or from Cryptolabs.org or from the CCC.

--[[User:Pitsche|Pitsche]] 21:22, 4 Jul 2005 (CEST)
----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej
----
Agreed. There should be a statement in the article about the source, or rather sources - i seem to have used different sources of information for some of my edits. ;-) I'll add mine on next edit.

Also, i think the TCG specifications should appear there somewhere. At least at current state of my knowledge about the subject i'd think that having them there is helpful for the user to understand what ESS 1 and 2 are capable of. Of course we shouldn't post the whole specs, but some really compressed summary, similar to the 'feature-list' in "TC - Trusted Computing". Pitsche, if you could point me to them i could do it. Also, a link to the original TCPA specs would be good. The links themselves should be added to the Links section.

Pitsche, about your login status: ThinkWiki doesn't cache logins. This means everytime your connection breaks or your browser closes you will have to login again. But don't worry, we can figure out what's from you and if not - it's a Wiki. ;-) I'm doing a lot of edits without being logged in as well.

That's it so far...i like the way we work on this.

Wyrfel.

Talk:TCPA/TCG - Trusted or Treacherous

2005-07-04T19:54:20Z

84.191.140.76:

== Discussion about the article "Trusted or Treacherous" ==

Please add you comments here.

You can use the "Plus"(+)-Button next to the "edit"-button at the top of this page to add you comments at the right spot ;-)

--[[User:Pitsche|Pitsche]] 11:38, 4 Jul 2005 (CEST)

== Plagiarism? ==

Large parts of this article apparently consist of unattributed, near-verbatim excerpts from a SANE2004 paper by Weis, Lucks, and Bogk, [http://www.cryptolabs.org/CCC2004TCunendlich/WeisLucksBogkSane2004tcg12.pdf TCG 1.2 - fair play with the 'Fritz' chip?]. Regardless of whether one believes that general political/ethical concerns about Trusted Computing belong on a Thinkpad-specific site, wholesale copying of unidentified, and presumably copyrighted, material is not cool, and could get the whole project in trouble.

I would suggest that the non-original parts of this article be removed and replaced by an external link to the above-mentioned paper; any particularly crucial short excerpts (as permitted by "fair use") should be clearly identified as such. The specific information about how the TCG specifications are implemented on various Thinkpad models can stay, of course.

== The Source is under Creative Commons, isn't it? ==

Hello Andrzej,

yes, you are right, another version of this text on a website of the presentation of the annual chaos computer club is one of my sources, but I think, that one is under creative commons license by-nc-sa 2.0 de. And are the presentations of the chaos computer congress not also free unless the speakers don't want it??????

This license allows to copy, distribute, display, perform or modify the text as long as it is published under exactly the same creative commons license and licensees may not use the work for commercial purposes - unless they get the licensor's permission.

My problem was, I had a lot more sources in a different language than english and my first drafts were way to long!

It didn't worked to keep it that short but detailed, as Ruediger and Adreas wrote it.

But if you think, after my explanation the actual version is still problematic, I will delete it of course!

--[[User:Pitsche|Pitsche]] 21:12, 4 Jul 2005 (CEST)

----
If the original authors have explicitly published the text under a suitably permissive CC license, there should be no legal problem in using it in a ThinkWiki article. Even in that case, however, the source needs to be clearly identified, and there should be a link to the complete original article.

-- Andrzej

----
Okay Andrzej, I will work on that and tell all of you about it in the coming days, if I have enough time for it.

Unless that, feel free to take out the critical passages of the article or modify it, if you have the time and if you want to do it.

But there is a problem: I slightly changed the text, put two sentence together to one etc. How can I now cite the source?

--[[User:Pitsche|Pitsche]] 21:38, 4 Jul 2005 (CEST)

== Thanks for your work, i like it ==

Hello Wyrfel,

thank you very much for editing and restructering of that article.

I think, I know know what you and Andrzej want and I will try in he next days, to change the article in that way, okay?

P.S.: I don't know, why I loose my logged-in status from time to time, perhaps my connection. I am sorry, that there are IP-Adresses instead of my unsername "pitsche", I hope, no one gets confused, which edit is by me and which one by someone else :-o

Sorry.

--[[User:Pitsche|Pitsche]] 21:15, 4 Jul 2005 (CEST)

== No exact TCG specifications needed ==

Hello again!

I am against writing about the specific specifications, because it will make the article longer and everybody, who is '''really''' interested in the specifications has several possibilities to get it for free in the WWW or from Cryptolabs.org or from the CCC.

--[[User:Pitsche|Pitsche]] 21:22, 4 Jul 2005 (CEST)
----
Agreed. There should be a statement in the article about the source, or rather sources - i seem to have used different sources of information for some of my edits. ;-) I'll add mine on next edit.

Also, i think the TCG specifications should appear there somewhere. At least at current state of my knowledge about the subject i'd think that having them there is helpful for the user to understand what ESS 1 and 2 are capable of. Of course we shouldn't post the whole specs, but some really compressed summary, similar to the 'feature-list' in "TC - Trusted Computing". Pitsche, if you could point me to them i could do it. Also, a link to the original TCPA specs would be good. The links themselves should be added to the Links section.

Pitsche, about your login status: ThinkWiki doesn't cache logins. This means everytime your connection breaks or your browser closes you will have to login again. But don't worry, we can figure out what's from you and if not - it's a Wiki. ;-) I'm doing a lot of edits without being logged in as well.

That's it so far...i like the way we work on this.

Wyrfel.

User talk:Pitsche

2005-07-04T09:21:41Z

84.191.140.76:

hello! please add your comments here:
--[[User:Pitsche|Pitsche]] 19:21, 3 Jul 2005 (CEST)

----
Hello,

just had a glimpse at your article. One thing...your introduction to this article in [[Embedded Security Subsystem]] mentions the chip built into current and past ThinkPads. But you do not state anywhere which of the TCG specs are already implemented in this chip. As far as i know remote sealing is not yet possible with it, is it? However, i think there should be a section telling people what ESS 1.0 and ESS 2.0 can do and can't do.

Regards,
Wyrfel.

Embedded Security Subsystem

2005-07-04T09:18:19Z

84.191.140.76:

{| width="100%"
|style="vertical-align:top;padding-right:20px;width:10px;" | [[Image:ESS.jpg|IBM Embedded Security Subsystem]] __NOTOC__
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
=== The Embedded Security Subsystem ===
The Embedded Security Subsystem is nothing but a chip installed on the Thinkpads mainboard that can take care of certain security related tasks conforming to the TCPA standard. It was first introduced among the T23 models and is now under the name Embedded Security Subsystem 2.0 an integral part of most of the modern Thinkpads. The functions of the chip are bound to three main groups:
* public key functions
* trusted boot functions
* initialization and management functions

The purpose of the whole thing is to keep the users sensitive data out of range from software based attacks (like viruses, internet attacks etc.). One way the chip offers to achieve this is by providing storage for keys along with the neccessary functions to handle them within itself, so that a i.e. a private key never has to leave the chip (can't be seen by any piece of software). Besides this there are more complex topics covered by the functionality of the chip. If you want to find out more about it you can find good documents on the [http://www.research.ibm.com/gsal/tcpa/ IBM Research TCPA resources page].</div>
|}

==[[Trusted or Treacherous]]?==

TC - Trusted Computing - will be the biggest change of the information landscape since decades.
Besides positive features like a more secure hardware storage for cryptographic keys, an analysis of the proposed standards shows some problematic properties.
'''One of the main problems is that the computer owner is seen as an adversary, who no longer should have the full control over their own computers anymore.'''
As Thinkpads of recent generations following the Thinkpad T23 (except the A30) are equipped with this disputed technology, you have to be aware of the promise and risks inside your ThinkPad - so please read [[Trusted or Treacherous|this article]] about an important topic.

==Linux Support==
Two linux drivers are available, a [[tpm|classical one]] and a [[tpmdd|newer one]].
Coverage of functionality of the first is unknown so far, the second is part of a bigger project aiming to provide a usable security framework.

David Stafford (one of the developers of the tpm code at IBM) on March 10, 2005 sent me the most recent version of the tpm-kml code. With his permission, I quote his email:

"I am attaching our latest driver and library.
This version is in the process of kernel mailing list review, and
will hopefully be accepted into the official kernel. It works
much better across various 2.6 kernels. Note that this builds
three modules tpm, tpm_atmel, and tpm_nsc. You modprobe the
tpm_atmel (for all current shipping atmel based systems), or
tpm_nsc (for the coming national based systems).

Also note that there is a conflict with the snd-intel8x0
kernel module (they each try to grab the LPC bus). You can
either: load the tpm modules first (such as in initrd or
rc.sysinit, before sound), or recompile the snd-intel8x0, turning
off the MIDI and JOYSTICK support. The latest 2.6.11 version
of snd-intel8x0 also reportedly fixes things."

Compiling this library was easy. Compiling the driver on my 2.6.8-686 (debian testing) laptop failed. But the library works with the driver I compiled from the tpm-2.0 package IBM made available on its pages (see the links below).

Gijs

The T43 requires a patch posted to the LKML by Kylene Jo Hall: [http://marc.theaimsgroup.com/?l=linux-kernel&m=111884603309146&w=2 LKML posting]. An updated patch for linux 2.6.12 is available [http://shamrock.dyndns.org/~ln/linux/tpm_2.6.12.diff here].

==Related Links==
*[http://www.pc.ibm.com/us/think/thinkvantagetech/security.html IBMs ThinkVantage<sup>TM</sup> Technologies Embedded Security Subsystem page]
*[http://www.pc.ibm.com/presentations/us/thinkvantage/56/index.html?shortcut=ess& IBMs ThinkVantage<sup>TM</sup> Technologies Flash presentation - Embedded Security Subsystem]
*[http://www.research.ibm.com/gsal/tcpa/ IBM Research TCPA resources page]
*[http://www.prosec.rub.de/trusted_grub.html Trusted Grub]

==Models featuring this Technology==
'''IBM Embedded Security Subsystem'''
*ThinkPad {{R31}}
*ThinkPad {{T23}}, {{T30}}
*ThinkPad {{X23}}, {{X24}}
'''IBM Embedded Security Subsystem 2.0'''
*ThinkPad {{R32}}, {{R40}}, {{R50}}, {{R50p}}, {{R51}}, {{R52}}
*ThinkPad {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
*ThinkPad {{X30}}, {{X31}}, {{X32}}, {{X40}}, {{X41}}, {{X41T}}
[[Category:Glossary]]