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From: Likepeng <likepeng@huawei.com>
To: =?utf-8?B?R8O2cmFuIFNlbGFuZGVy?= <goran.selander@ericsson.com>, "Hannes Tschofenig" <hannes.tschofenig@gmx.net>, "ace@ietf.org" <ace@ietf.org>
Thread-Topic: [Ace] Next step for use case document
Thread-Index: AQHP2+Z2zMYxzyxQtE+FAIirW36spZwmBHpQ
Date: Wed, 8 Oct 2014 10:34:57 +0000
Message-ID: <34966E97BE8AD64EAE9D3D6E4DEE36F2581A37D0@SZXEMA501-MBS.china.huawei.com>
References: <D04EDD20.185CB%goran.selander@ericsson.com>
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Subject: Re: [Ace] Next step for use case document
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Subject: Re: [Ace] Next step for use case document
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From: Likepeng <likepeng@huawei.com>
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Thread-Topic: [Ace] Next step for use case document
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Date: Thu, 9 Oct 2014 01:01:55 +0000
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Subject: Re: [Ace] Next step for use case document
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Thread-Topic: some suggestions - clarification of ACE scope and  secauth
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From: Hosnieh Rafiee <hosnieh.rafiee@huawei.com>
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Thread-Topic: Correction:  some suggestions - clarification of ACE scope and secauth
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From nobody Fri Oct 10 01:48:38 2014
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Hi Hosnieh,

Thank you for your suggestions. I am not sure if I completely understand
which part of your scenario you want us to integrate into the use cases
document. Some questions inline.

On 10/09/2014 12:48 PM, Hosnieh Rafiee wrote:
> Hi,
> 
> In secauth requirement draft, there is two requirements that I suggest to be considered by ACE however, If ACE does not want to work on them,  I will keep it in secauth.
> 
> Here is the link to secauth requirement draft.
> https://tools.ietf.org/html/draft-rafiee-secauth-usecase-01 
> 
> 
>    Scenario 2: Alice's wash machine technically has a problem. Its
>    application was configured by the vendors? in a way to report this
>    problem automatically to third party technical service (repair
>    place). Both the technical service application and wash machine need
>    to authenticate each other so that they can trust and exchange
>    information.

Why does the washing machine contact the repair service and not Alice
herself? She would have to make an appointment with them anyway if the
machine is broken.

>  Since the application are usually implemented by the
>    third party and there was not much effort to secure the
>    communications between the device and the application, the security
>    of them is a big concern.
> 
> Alice turned on the wash machine at home and then went to work. Alice
>    can check the status of this wash machine using an application on her
>    Smartphone remotely at company x. Wash machine doesn't support any
>    certificates signed by a CA. Alice needs to be authenticated in the
>    wash machine and wash machine needs to trust Alice to allow her
>    control it remotely. Since the application are usually provided by
>    third parties, the security of this communication is important and
>    the first point of trust is really important.


Which authorization problem do you want to solve here? Please have a
look at section 2.2.1. in [1]. Do you want to address an authorization
problem that is not already covered here?

Thanks,
Steffi


From nobody Fri Oct 10 01:51:09 2014
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[1] https://tools.ietf.org/id/draft-seitz-ace-usecases-01.txt

On 10/10/2014 10:47 AM, Stefanie Gerdes wrote:
> Hi Hosnieh,
> 
> Thank you for your suggestions. I am not sure if I completely understand
> which part of your scenario you want us to integrate into the use cases
> document. Some questions inline.
> 
> On 10/09/2014 12:48 PM, Hosnieh Rafiee wrote:
>> Hi,
>>
>> In secauth requirement draft, there is two requirements that I suggest to be considered by ACE however, If ACE does not want to work on them,  I will keep it in secauth.
>>
>> Here is the link to secauth requirement draft.
>> https://tools.ietf.org/html/draft-rafiee-secauth-usecase-01 
>>
>>
>>    Scenario 2: Alice's wash machine technically has a problem. Its
>>    application was configured by the vendors? in a way to report this
>>    problem automatically to third party technical service (repair
>>    place). Both the technical service application and wash machine need
>>    to authenticate each other so that they can trust and exchange
>>    information.
> 
> Why does the washing machine contact the repair service and not Alice
> herself? She would have to make an appointment with them anyway if the
> machine is broken.
> 
>>  Since the application are usually implemented by the
>>    third party and there was not much effort to secure the
>>    communications between the device and the application, the security
>>    of them is a big concern.
>>
>> Alice turned on the wash machine at home and then went to work. Alice
>>    can check the status of this wash machine using an application on her
>>    Smartphone remotely at company x. Wash machine doesn't support any
>>    certificates signed by a CA. Alice needs to be authenticated in the
>>    wash machine and wash machine needs to trust Alice to allow her
>>    control it remotely. Since the application are usually provided by
>>    third parties, the security of this communication is important and
>>    the first point of trust is really important.
> 
> 
> Which authorization problem do you want to solve here? Please have a
> look at section 2.2.1. in [1]. Do you want to address an authorization
> problem that is not already covered here?
> 
> Thanks,
> Steffi
> 
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace
> 


-- 
Stefanie Gerdes			Tel: +49 421 218 63906
TZI Universität Bremen		E-Mail: gerdes@tzi.de
Bibliothekstr. 1, MZH 5150
28359 Bremen, Germany


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From: Hosnieh Rafiee <hosnieh.rafiee@huawei.com>
To: Stefanie Gerdes <gerdes@tzi.de>, "ace@ietf.org" <ace@ietf.org>
Thread-Topic: [Ace] some suggestions - clarification of ACE scope and secauth
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Date: Fri, 10 Oct 2014 09:58:31 +0000
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References: <D04EDD20.185CB%goran.selander@ericsson.com> <34966E97BE8AD64EAE9D3D6E4DEE36F2581A37D0@SZXEMA501-MBS.china.huawei.com> <D05AF6C0.18C97%goran.selander@ericsson.com> <34966E97BE8AD64EAE9D3D6E4DEE36F2581A3B0D@SZXEMA501-MBS.china.huawei.com> <814D0BFB77D95844A01CA29B44CBF8A7A47504@lhreml513-mbb.china.huawei.com> <54379D37.6060609@tzi.de>
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Subject: Re: [Ace] some suggestions - clarification of ACE scope and secauth
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Hi Stefanie,

Thanks for your message. My responses inline


>=20
> Thank you for your suggestions. I am not sure if I completely
> understand which part of your scenario you want us to integrate into
> the use cases document. Some questions inline.

Just these two use cases that I explicitly included in my message. Because =
Kathleen reviewed secauth requirement and one of her question about these u=
se cases that it might be covered by ACE.=20

> >    Scenario 2: Alice's wash machine technically has a problem. Its
> >    application was configured by the vendors? in a way to report this
> >    problem automatically to third party technical service (repair
> >    place). Both the technical service application and wash machine
> need
> >    to authenticate each other so that they can trust and exchange
> >    information.
>=20
> Why does the washing machine contact the repair service and not Alice
> herself? She would have to make an appointment with them anyway if the
> machine is broken.

This is based on an article I read about "talking home devices and privacy =
and security concerns.  This article was based on researches of one of the =
owner of new smart wash machines who was concerned about the information se=
nt back and forth by wash machine to x locations. In that article it also e=
xplained the ability of a smart wash machine that sends its problems to rep=
air service centers automatically and explains the remaining concerns about=
 the security of such applications since the producers only outsource them =
without much supervision on their security.=20

The scenario which you explained is a bit different (only the end point is =
different) however, IMO, the security of that can be considered in a same w=
ay. =20

> >  Since the application are usually implemented by the
> >    third party and there was not much effort to secure the
> >    communications between the device and the application, the
> security
> >    of them is a big concern.
> >
> > Alice turned on the wash machine at home and then went to work. Alice
> >    can check the status of this wash machine using an application on
> her
> >    Smartphone remotely at company x. Wash machine doesn't support any
> >    certificates signed by a CA. Alice needs to be authenticated in
> the
> >    wash machine and wash machine needs to trust Alice to allow her
> >    control it remotely. Since the application are usually provided by
> >    third parties, the security of this communication is important and
> >    the first point of trust is really important.
>=20
>=20
> Which authorization problem do you want to solve here? Please have a
> look at section 2.2.1. in [1]. Do you want to address an authorization
> problem that is not already covered here?
>=20

I checked ACE use case section 2.2.1. It appears that the use case only con=
sidered authorization and not authentication. So it seems that it presumed =
the authentication of Jane have already done and Jane only needs to authori=
ze Jeffery to access some resources.

I have a question for you. I haven't read the new version of OAuth document=
s but such authorization scenarios might already considered by Oauth. Maybe=
 it is good to check with them if it wasn't done before.=20

Thanks,
Best,
Hosnieh


From nobody Sat Oct 11 23:53:29 2014
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To: "StJohns, Michael" <msj@nthpermutation.com>
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Cc: "dtls-iot@ietf.org" <dtls-iot@ietf.org>, ace@ietf.org
Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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On 12 Oct 2014, at 07:11, StJohns, Michael <msj@nthpermutation.com> =
wrote:

> =
http://money.cnn.com/2014/10/08/technology/security/internet-of-things-sec=
urity/index.html?iid=3DHP_LN&hpt=3Dhp_bn5

If you take the effort to look at the vulnerabilities reported, it is =
interesting to see that they are all exploiting the lame security model =
for today=92s home networks: A single shared-key WiFi password that =
grants access to everything.

The LiFX vulnerability was caused by the light bulbs needing to tell =
each other that shared-key WiFi password over the (unsecured) 802.15.4 =
network.  (Well, it was dumb enough to communicate that key in an =
unsecured fashion, but the damage that LiFX could cause was much worse =
due to the sensitivity of the WiFi key.)

The Belkin camera vulnerability was caused by handing out the permanent =
keys for cloud access to the camera to anyone that had access to the =
WiFi network, even temporarily.  (That was probably considered OK =
because the shared-key protected home network is =93secure=94, no?)

Instead of having this simple-minded perimeter security, we need to move =
to real, authenticated authorization.  That=92s what ACE is about.

Of course, as long as the IoT devices need the WiFi password to access =
the network, and other devices in the home rely on lame WiFi perimeter =
security, those other devices will remain vulnerable to any bugs in the =
IoT devices.  If you want to keep those lame other devices, the only =
solution here is to firewall them off.  (Using IPv6 for the IoT devices =
helps quite a way here.)

The next time you read one of those dime-a-dozen articles about =93IoT =
security=94, read closer and find out they are really a lament about =
today=92s lame home network security model.

Gr=FC=DFe, Carsten


From nobody Sun Oct 12 01:40:51 2014
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Subject: [Ace] Constrained Node/Network Cluster @ IETF91, early draft version
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A first draft version of the IETF91 agenda is out.
** THIS IS GOING TO CHANGE ** for conflict resolution,
so please don't make travel arrangements based on it.

Here is my usual eclectic condensed agenda built from that. =20
I notice there is no ROLL meeting in the agenda.
The Constrained Node/Network group meetings are nicely spread out over =
Mon-Thu, with a peak on Wednesday.
I hope the social is bad, because that is about the only time between =
the two CoRE meetings...

All times are HST (UTC-1000) (use =
https://datatracker.ietf.org/meeting/agenda-utc and press the button to =
get your local time in case you want to listen in from remote).

Gr=FC=DFe, Carsten


MONDAY, November 10, 2014

0900-1130  Morning Session I
Coral 2 	APP	appsawg	Applications Area Working Group WG - =
Combined with APPAREA
Coral 4 	OPS	v6ops	IPv6 Operations WG

1300-1500  Afternoon Session I
Coral 4 	RTG	bier	Bit Indexed Explicit Replication BOF

1520-1720  Afternoon Session II
Coral 1 	INT	detnet	Deterministic Networking BOF
Coral 5 	OPS	anima	Autonomic Networking Integrated Model =
and Approach BOF
Coral 3 	OPS	v6ops	IPv6 Operations WG

1730-1830  Afternoon Session III
Coral 5 	OPS	anima	Autonomic Networking Integrated Model =
and Approach BOF
Coral 1 	SEC ***	dice	DTLS In Constrained Environments WG

TUESDAY, November 11, 2014

0900-1130  Morning Session I
Coral 2 	APP	uta	Using TLS in Applications WG
Kahili 1/2	INT ***	6lo	IPv6 over Networks of =
Resource-constrained Nodes WG
Coral 5 	TSV	tsvarea	Transport Area Open Meeting

1300-1500  Afternoon Session I
Coral 1 	APP	httpbis	Hypertext Transfer Protocol WG
Coral 4 	RTG	rtgarea	Routing Area Open Meeting
Coral 2 	TSV	tsvwg	Transport Area Working Group WG

1520-1720  Afternoon Session II
Coral 2 	APP ***	core	Constrained RESTful Environments WG
Coral 5 	RAI	webpush	Web-Based Push Notifications WG

WEDNESDAY, November 12, 2014

0900-1130  Morning Session I
Kahili 1/2	APP ***	core	Constrained RESTful Environments WG
Coral 3 	INT	homenet	Home Networking WG
Lehua Suite	SEC	oauth	Web Authorization Protocol WG
Coral 4 	TSV	rmcat	RTP Media Congestion Avoidance =
Techniques WG

1300-1500  Afternoon Session I
Coral 5 	SEC ***	ace	Authentication and Authorization for =
Constrained Environments WG

1520-1650  Afternoon Session II
Coral 4 	APP	httpbis	Hypertext Transfer Protocol WG
Kahili 1/2	INT ***	6tisch	IPv6 over the TSCH mode of IEEE =
802.15.4e WG

THURSDAY, November 13, 2014

0900-1130  Morning Session I
Coral 5 	SEC	tls	Transport Layer Security WG
Coral 2 	TSV	taps	Transport Services WG

1300-1500  Afternoon Session I
Coral 4 	INT	dnssd	Extensions for Scalable DNS Service =
Discovery  WG
Coral 3 	SEC	saag	Security Area Open Meeting
Coral 1 	TSV	tsvwg	Transport Area Working Group WG

1520-1620  Afternoon Session II
Coral 4 	INT ***	lwig	Light-Weight Implementation Guidance WG

FRIDAY, November 14, 2014

0900-1130  Morning Session I
Coral 3 	INT	6man	IPv6 Maintenance WG
Coral 1 	TSV	tcpinc	TCP Increased Security WG

1150-1320  Afternoon Session I
Coral 4 	INT	intarea	Internet Area Working Group WG
Coral 2 	SEC	httpauth	Hypertext Transfer Protocol =
Authentication WG



From nobody Sun Oct 12 17:17:05 2014
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Date: Sun, 12 Oct 2014 16:11:21 -0400
From: Michael StJohns <msj@nthpermutation.com>
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Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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On 10/12/2014 2:53 AM, Carsten Bormann wrote:
> On 12 Oct 2014, at 07:11, StJohns, Michael <msj@nthpermutation.com> wrote:
>
>> http://money.cnn.com/2014/10/08/technology/security/internet-of-things-security/index.html?iid=HP_LN&hpt=hp_bn5
> If you take the effort to look at the vulnerabilities reported, it is interesting to see that they are all exploiting the lame security model for today’s home networks: A single shared-key WiFi password that grants access to everything.
>
> The LiFX vulnerability was caused by the light bulbs needing to tell each other that shared-key WiFi password over the (unsecured) 802.15.4 network.  (Well, it was dumb enough to communicate that key in an unsecured fashion, but the damage that LiFX could cause was much worse due to the sensitivity of the WiFi key.)
>
> The Belkin camera vulnerability was caused by handing out the permanent keys for cloud access to the camera to anyone that had access to the WiFi network, even temporarily.  (That was probably considered OK because the shared-key protected home network is “secure”, no?)
>
> Instead of having this simple-minded perimeter security, we need to move to real, authenticated authorization.  That’s what ACE is about.
>
> Of course, as long as the IoT devices need the WiFi password to access the network, and other devices in the home rely on lame WiFi perimeter security, those other devices will remain vulnerable to any bugs in the IoT devices.  If you want to keep those lame other devices, the only solution here is to firewall them off.  (Using IPv6 for the IoT devices helps quite a way here.)
>
> The next time you read one of those dime-a-dozen articles about “IoT security”, read closer and find out they are really a lament about today’s lame home network security model.
>
> Grüße, Carsten
>

It's kind of interesting how different my take away was from yours. 
(And, yes, I did read the article and read it closely so please give me 
the benefit of the doubt that I knew what I was doing when I offered the 
article instead of suggesting I didn't understand what I was reading).

  I didn't/don't really care that a vulnerability was related to X or Y, 
but that the vendor knew that its scheme was weak and provided the 
product anyway.   The article wasn't about IOT security technology and I 
didn't present it as that (note the words "real world liability 
perspective" in the subject), but was an interesting look into the "ship 
or die" mentalities in a lot of product companies as it affects 
provision of good security technology in consumer products.

All of the products were/are considered "IOT" or IOT precursors. All of 
them were provided with about the cheapest security possible, at least 
partly because that security was in wide deployment. There's no evidence 
that the product companies actually looked at the threat models for the 
environment that their products were going to be in.

That's a continuing problem for companies, and sometimes a problem for 
the IETF and its working groups.

Later, Mike





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Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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Hi Mike,


On 10/12/2014 10:11 PM, Michael StJohns wrote:
> On 10/12/2014 2:53 AM, Carsten Bormann wrote:
>> On 12 Oct 2014, at 07:11, StJohns, Michael <msj@nthpermutation.com>
>> wrote:
>>
>>> http://money.cnn.com/2014/10/08/technology/security/internet-of-things-security/index.html?iid=HP_LN&hpt=hp_bn5

The article seems a bit sensation-seeking to me.. what exactly was your
point in posting it? If your intent is to point out that we need
security even for the smallest devices, I completely agree with you. If
you want to point out that it is easy to do security wrong, I also agree
with you.

I think one big problem in current developments in this area is that
there are no standardized security solutions for devices with strong
limitations in terms of processing power, storage space etc. Vendors
will come up with their own solutions which likely will have a lot of
security problems.

We could decide to refuse to develop protocols for this type of devices
and let those people go on with their own solution (I don't really
expect them to stop using those devices). Or we can design protocols
that are able to cope with the limitations of the devices and provide
the best possible security.

Best regards,
Steffi


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Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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--------------ms070609050506080503040105
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I think Mike's "ship or die" comment is very relevant. The problem with=20
security is that it is not necessary to have it to function. A door=20
without a lock is still a door. Therefore, the easiest corner to cut for =

a product is security as it is still possible to show products working=20
without security in place. From that point of view, it is inevitable=20
that early releases of products will have vulnerabilities, some of them=20
significant. This will lead to sensationalist articles such as this,=20
promoting the services of "security experts" who often have some snake=20
oil solution which will cure everything.

However, I agree that the presence of standards and and subsequent=20
multi-vendor support building it in to platforms, especially constrained =

platforms, will make it easier to produce products with "invisible=20
security", i.e. baked in and virtually transparent to the actual=20
function of the product. There is some way to go before we get there but =

that should be the goal and hopefully the ACE WG will help to achieve=20
that goal.

Robert

On 13/10/2014 10:14 AM, Stefanie Gerdes wrote:
> Hi Mike,
>
>
> On 10/12/2014 10:11 PM, Michael StJohns wrote:
>> On 10/12/2014 2:53 AM, Carsten Bormann wrote:
>>> On 12 Oct 2014, at 07:11, StJohns, Michael <msj@nthpermutation.com>
>>> wrote:
>>>
>>>> http://money.cnn.com/2014/10/08/technology/security/internet-of-thin=
gs-security/index.html?iid=3DHP_LN&hpt=3Dhp_bn5
> The article seems a bit sensation-seeking to me.. what exactly was your=

> point in posting it? If your intent is to point out that we need
> security even for the smallest devices, I completely agree with you. If=

> you want to point out that it is easy to do security wrong, I also agre=
e
> with you.
>
> I think one big problem in current developments in this area is that
> there are no standardized security solutions for devices with strong
> limitations in terms of processing power, storage space etc. Vendors
> will come up with their own solutions which likely will have a lot of
> security problems.
>
> We could decide to refuse to develop protocols for this type of devices=

> and let those people go on with their own solution (I don't really
> expect them to stop using those devices). Or we can design protocols
> that are able to cope with the limitations of the devices and provide
> the best possible security.
>
> Best regards,
> Steffi
>
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace
>



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--------------ms070609050506080503040105--


From nobody Mon Oct 13 03:54:16 2014
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From: Carsten Bormann <cabo@tzi.org>
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Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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On 13 Oct 2014, at 12:21, Robert Cragie <robert.cragie@gridmerge.com> =
wrote:

> I think Mike's "ship or die" comment is very relevant.=20

I completely agree.

Unfortunately, there is very little that we can do about this in the =
IETF.

I believe it is worth analyzing the unsavory situation we are in, to =
some greater detail.

=97 even if the companies wanted, they don=92t have (and cannot afford) =
the engineering in house that could be tasked to create a secure product =
(there is one exception in the consumer electronics space, and their =
track record still isn=92t exactly stellar)
=97 there is little economic incentive to be secure (no teeth in the =
product liability)
=97 sales and thus economic success is dominated by =93ease of use=94
  =97 and this is amplified by the need to minimize costly customer care =
contacts
=97 ease of use is dominated by
  =97 expectations of users (plug and play etc.)
    =97 you can=92t actually be more secure in a way that causes hassle =
that users don=92t expect
  =97 interoperability with what=92s already there
    =97 which includes deployed systems with abysmal security
      =97 that might damage the security of the IoT gear if it relies on =
that
      =97 or bugs/unforeseen interactions of the IoT gear might damage =
the =93security=94 of deployed systems

It is very hard to secure home IoT if that needs to plug into and =
interact with other networked home gear in its current insecure state.  =
My only hope is that if IoT gear can be made to lead in usable security, =
that might shift expectations.  It seems we=92ll have to do some of the =
engineering here that the gear makers can=92t.

We also need to spend more time pointing out that, if it isn=92t usably =
secure, it=92s *not* IoT.

Gr=FC=DFe, Carsten


From nobody Mon Oct 13 07:08:45 2014
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Subject: Re: [Ace] [Dtls-iot] Constrained Node/Network Cluster @ IETF91, early draft version
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Do you think the conflict between CORE and WEBPUSH is an issue that we
should try to resolve?

Barry


From nobody Mon Oct 13 07:17:11 2014
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Subject: Re: [Ace] some suggestions - clarification of ACE scope and secauth
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Hi Hosnieh,

the scenarios fall into the scope of ACE if at least the resource server
is constrained.

If the washing machine just talks to some cloud-based infrastructure
then that's not really of interest to ACE. If there is, however, a
technician standing next to the washing machine and wants to retrieve
information from the washing machine using his mobile phone or tablet
directly then the washing machine becomes the resource server.

To me it appears (from our earlier discussion about the scenarios) that
you envision some interaction with a server-side infrastructure. If
that's the case then you should be able to solve these use cases with
the already existing standards we have developed.

Ciao
Hannes



On 10/09/2014 12:48 PM, Hosnieh Rafiee wrote:
> Hi,
>=20
> In secauth requirement draft, there is two requirements that I suggest =
to be considered by ACE however, If ACE does not want to work on them,  I=
 will keep it in secauth.
>=20
> Here is the link to secauth requirement draft.
> https://tools.ietf.org/html/draft-rafiee-secauth-usecase-01=20
>=20
>=20
>    Scenario 2: Alice's wash machine technically has a problem. Its
>    application was configured by the vendors? in a way to report this
>    problem automatically to third party technical service (repair
>    place). Both the technical service application and wash machine need=

>    to authenticate each other so that they can trust and exchange
>    information. Since the application are usually implemented by the
>    third party and there was not much effort to secure the
>    communications between the device and the application, the security
>    of them is a big concern.
>=20
> Alice turned on the wash machine at home and then went to work. Alice
>    can check the status of this wash machine using an application on he=
r
>    Smartphone remotely at company x. Wash machine doesn't support any
>    certificates signed by a CA. Alice needs to be authenticated in the
>    wash machine and wash machine needs to trust Alice to allow her
>    control it remotely. Since the application are usually provided by
>    third parties, the security of this communication is important and
>    the first point of trust is really important.
>=20
> Thanks,
> Best,
> Hosnieh
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace
>=20


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From nobody Mon Oct 13 07:32:05 2014
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Cc: core <core@ietf.org>, ace@ietf.org
Subject: Re: [Ace] [Dtls-iot] Constrained Node/Network Cluster @ IETF91, early draft version
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On 13 Oct 2014, at 16:08, Barry Leiba <barryleiba@computer.org> wrote:

> Do you think the conflict between CORE and WEBPUSH is an issue that we
> should try to resolve?

That is indeed a good question.

I listed webpush in the cluster agenda because it could be of interest =
in the context of proxying Observe and CoAP-MQ functionality into the =
HTTP world and vice versa.

I don=92t know whether there are going to be CoRE people in Hawaii who =
would want to go contribute to the webpush WG.  (I know that Klaus is =
not coming, and I have heard a lot of grumpy noises about being able to =
travel to Hawaii.)  I certainly would like to go.  But then I don=92t =
know whether webpush will be relevant for the above mentioned purpose or =
not.

What do other CoRE/ACE people think?

(Trimming the CC list a bit, because this is mostly an application space =
issue.)

(Oh, and I also wouldn=92t mind increasing the separation of the two =
CoRE slots by moving the first around.)

Gr=FC=DFe, Carsten


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> (Oh, and I also wouldn't mind increasing the separation of the two CoRE slots by moving the first around.)

It's VERY hard to move core... it has a very challenging conflict list.

Barry


From nobody Mon Oct 13 08:17:21 2014
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From: Hosnieh Rafiee <hosnieh.rafiee@huawei.com>
To: Hannes Tschofenig <hannes.tschofenig@gmx.net>, "ace@ietf.org" <ace@ietf.org>
Thread-Topic: [Ace] some suggestions - clarification of ACE scope and secauth
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Hi Hannes,

Thanks for your response. My responses inline...
>=20
> the scenarios fall into the scope of ACE if at least the resource
> server is constrained.

I presumed that something like wash machine have constrained resources.


> If the washing machine just talks to some cloud-based infrastructure
> then that's not really of interest to ACE. If there is, however, a
> technician standing next to the washing machine and wants to retrieve
> information from the washing machine using his mobile phone or tablet
> directly then the washing machine becomes the resource server.

Ok, So, if I understand you correctly, if one end point is constrained devi=
ces and the other point is cloud infrastructure, this is not what ACE will =
work on and I can put it in secauth.=20


> To me it appears (from our earlier discussion about the scenarios) that
> you envision some interaction with a server-side infrastructure. If
> that's the case then you should be able to solve these use cases with
> the already existing standards we have developed.
>=20

Yes true. But it appears that I have to revise the scope based on your comm=
ents and other offlist discussion.

Thanks,=20
Best,
Hosnieh




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To: Hosnieh Rafiee <hosnieh.rafiee@huawei.com>
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Subject: Re: [Ace] some suggestions - clarification of ACE scope and secauth
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On 13 Oct 2014, at 17:17, Hosnieh Rafiee <hosnieh.rafiee@huawei.com> =
wrote:

> Ok, So, if I understand you correctly, if one end point is constrained =
devices and the other point is cloud infrastructure, this is not what =
ACE will work on

If this is just about a secure connection between the constrained device =
and a less-constrained device, that is already covered by DTLS, so there =
is nothing to work on.

If the point is to have the less-constrained device become authorized to =
access resources on the constrained device, then we need something like =
ACE.

A more detailed introduction of what ACE is about is in =
draft-gerdes-ace-actors-01.txt

Gr=FC=DFe, Carsten


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From: Hosnieh Rafiee <hosnieh.rafiee@huawei.com>
To: Carsten Bormann <cabo@tzi.org>
Thread-Topic: [Ace] some suggestions - clarification of ACE scope and secauth
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Date: Mon, 13 Oct 2014 16:16:49 +0000
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Subject: Re: [Ace] some suggestions - clarification of ACE scope and secauth
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Hi Carsten,

Thanks for your message. Please see my responses inline...

> > Ok, So, if I understand you correctly, if one end point is
> constrained devices and the other point is cloud infrastructure, this
> is not what ACE will work on
>=20
> If this is just about a secure connection between the constrained
> device and a less-constrained device, that is already covered by DTLS,
> so there is nothing to work on.

To some extend true. Thanks for clarification. I will check DTLS again to s=
ee what they have and how they want to provide the authentication and autho=
rization in virtualization environment, share the result with the mailingli=
st.

Besides the above mentioned scenarios, secauth plans to work on first point=
 of trust for different use cases. Does ACE also work on this first point o=
f trust? If so I will remove all use cases regarding constrained devices, i=
f not I only change these particular use cases to only focus on providing f=
irst point of trust.


> If the point is to have the less-constrained device become authorized
> to access resources on the constrained device, then we need something
> like ACE.
>=20
> A more detailed introduction of what ACE is about is in draft-gerdes-
> ace-actors-01.txt

Thanks, will take a look.

Best,
Hosnieh


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Subject: Re: [Ace] [Dtls-iot] Constrained Node/Network Cluster @ IETF91, early draft version
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Barry Leiba <barryleiba@computer.org> writes:

>> (Oh, and I also wouldn't mind increasing the separation of the two
> CoRE slots by moving the first around.)
>
> It's VERY hard to move core... it has a very challenging conflict list.

As it is, half of core conflicts with oauth.  :(

> Barry

-derek
-- 
       Derek Atkins                 617-623-3745
       derek@ihtfp.com             www.ihtfp.com
       Computer and Internet Security Consultant


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Subject: Re: [Ace] [Dtls-iot] Constrained Node/Network Cluster @ IETF91, early draft version
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On 13 Oct 2014, at 22:10, Derek Atkins <derek@ihtfp.com> wrote:

>> It's VERY hard to move core... it has a very challenging conflict =
list.
>=20
> As it is, half of core conflicts with oauth.  :(

Yes, that is one of the compromises we incurred to keep scheduling =
manageable.
In the last few meetings, we asked to have at least *half* of the core =
meeting to be free of conflicts with the most relevant security WGs.  =
Asking to have no such conflict on both meeting slots would make =
scheduling even more impossible.  (Both homenet and rmcat are additional =
painful conflicts.)

Gr=FC=DFe, Carsten


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Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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I agree that the article is one of dime-a-dozen articles while such =
security vulnerabilities were happened due to the =E2=80=9Cship or =
die=E2=80=9D mentalities, which are needed these days especially to =
startups. I bet that such security vulnerabilities will be continuously =
reported and the IETF cannot help much for solving those things happen. =
The IETF is just one of standardization development organizations.

J.
--
Jong-Hyouk Lee, living somewhere between /dev/null and /dev/random
Protocol Engineering Lab., Sangmyung University

#email: jonghyouk@gmail.com
#webpage: https://sites.google.com/site/hurryon

On 2014. 10. 13., at =EC=98=A4=ED=9B=84 7:53, Carsten Bormann =
<cabo@tzi.org> wrote:

> On 13 Oct 2014, at 12:21, Robert Cragie <robert.cragie@gridmerge.com> =
wrote:
>=20
>> I think Mike's "ship or die" comment is very relevant.=20
>=20
> I completely agree.
>=20
> Unfortunately, there is very little that we can do about this in the =
IETF.
>=20
> I believe it is worth analyzing the unsavory situation we are in, to =
some greater detail.
>=20
> =E2=80=94 even if the companies wanted, they don=E2=80=99t have (and =
cannot afford) the engineering in house that could be tasked to create a =
secure product (there is one exception in the consumer electronics =
space, and their track record still isn=E2=80=99t exactly stellar)
> =E2=80=94 there is little economic incentive to be secure (no teeth in =
the product liability)
> =E2=80=94 sales and thus economic success is dominated by =E2=80=9Cease =
of use=E2=80=9D
>  =E2=80=94 and this is amplified by the need to minimize costly =
customer care contacts
> =E2=80=94 ease of use is dominated by
>  =E2=80=94 expectations of users (plug and play etc.)
>    =E2=80=94 you can=E2=80=99t actually be more secure in a way that =
causes hassle that users don=E2=80=99t expect
>  =E2=80=94 interoperability with what=E2=80=99s already there
>    =E2=80=94 which includes deployed systems with abysmal security
>      =E2=80=94 that might damage the security of the IoT gear if it =
relies on that
>      =E2=80=94 or bugs/unforeseen interactions of the IoT gear might =
damage the =E2=80=9Csecurity=E2=80=9D of deployed systems
>=20
> It is very hard to secure home IoT if that needs to plug into and =
interact with other networked home gear in its current insecure state.  =
My only hope is that if IoT gear can be made to lead in usable security, =
that might shift expectations.  It seems we=E2=80=99ll have to do some =
of the engineering here that the gear makers can=E2=80=99t.
>=20
> We also need to spend more time pointing out that, if it isn=E2=80=99t =
usably secure, it=E2=80=99s *not* IoT.
>=20
> Gr=C3=BC=C3=9Fe, Carsten
>=20
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace


--Apple-Mail=_402E8211-9928-42CF-81AE-13DB60ABBC57
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I =
agree that the article is one of dime-a-dozen articles while such =
security vulnerabilities were happened due to the =E2=80=9Cship or =
die=E2=80=9D mentalities, which are needed these days especially to =
startups. I bet that such security vulnerabilities will be continuously =
reported and the IETF cannot help much for solving those things happen. =
The IETF is just one of standardization development =
organizations.<div><br></div><div>J.<br><div =
apple-content-edited=3D"true">
<div><div style=3D"orphans: 2; widows: 2; margin: 0px; font-family: =
Arial;">--</div><div style=3D"orphans: 2; widows: 2; margin: 0px; =
font-family: Arial;">Jong-Hyouk Lee, living somewhere between /dev/null =
and /dev/random</div><div style=3D"orphans: 2; widows: 2; margin: 0px; =
font-family: Arial;">Protocol Engineering Lab., Sangmyung =
University</div><div style=3D"orphans: 2; widows: 2; margin: 0px; =
font-family: Arial; min-height: 14px;"><br></div><div style=3D"orphans: =
2; widows: 2; margin: 0px; font-family: Arial;">#email: <a =
href=3D"mailto:jonghyouk@gmail.com">jonghyouk@gmail.com</a></div><div =
style=3D"orphans: 2; widows: 2; margin: 0px; font-family: =
Arial;">#webpage: <a =
href=3D"https://sites.google.com/site/hurryon">https://sites.google.com/si=
te/hurryon</a></div></div>

</div>
<br><div><div>On 2014. 10. 13., at =EC=98=A4=ED=9B=84 7:53, Carsten =
Bormann &lt;<a href=3D"mailto:cabo@tzi.org">cabo@tzi.org</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite">On 13 Oct 2014, at 12:21, Robert Cragie &lt;<a =
href=3D"mailto:robert.cragie@gridmerge.com">robert.cragie@gridmerge.com</a=
>&gt; wrote:<br><br><blockquote type=3D"cite">I think Mike's "ship or =
die" comment is very relevant. <br></blockquote><br>I completely =
agree.<br><br>Unfortunately, there is very little that we can do about =
this in the IETF.<br><br>I believe it is worth analyzing the unsavory =
situation we are in, to some greater detail.<br><br>=E2=80=94 even if =
the companies wanted, they don=E2=80=99t have (and cannot afford) the =
engineering in house that could be tasked to create a secure product =
(there is one exception in the consumer electronics space, and their =
track record still isn=E2=80=99t exactly stellar)<br>=E2=80=94 there is =
little economic incentive to be secure (no teeth in the product =
liability)<br>=E2=80=94 sales and thus economic success is dominated by =
=E2=80=9Cease of use=E2=80=9D<br> &nbsp;=E2=80=94 and this is amplified =
by the need to minimize costly customer care contacts<br>=E2=80=94 ease =
of use is dominated by<br> &nbsp;=E2=80=94 expectations of users (plug =
and play etc.)<br> &nbsp;&nbsp;&nbsp;=E2=80=94 you can=E2=80=99t =
actually be more secure in a way that causes hassle that users don=E2=80=99=
t expect<br> &nbsp;=E2=80=94 interoperability with what=E2=80=99s =
already there<br> &nbsp;&nbsp;&nbsp;=E2=80=94 which includes deployed =
systems with abysmal security<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=E2=80=94 =
that might damage the security of the IoT gear if it relies on that<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=E2=80=94 or bugs/unforeseen interactions =
of the IoT gear might damage the =E2=80=9Csecurity=E2=80=9D of deployed =
systems<br><br>It is very hard to secure home IoT if that needs to plug =
into and interact with other networked home gear in its current insecure =
state. &nbsp;My only hope is that if IoT gear can be made to lead in =
usable security, that might shift expectations. &nbsp;It seems we=E2=80=99=
ll have to do some of the engineering here that the gear makers =
can=E2=80=99t.<br><br>We also need to spend more time pointing out that, =
if it isn=E2=80=99t usably secure, it=E2=80=99s *not* =
IoT.<br><br>Gr=C3=BC=C3=9Fe, =
Carsten<br><br>_______________________________________________<br>Ace =
mailing list<br><a =
href=3D"mailto:Ace@ietf.org">Ace@ietf.org</a><br>https://www.ietf.org/mail=
man/listinfo/ace<br></blockquote></div><br></div></body></html>=

--Apple-Mail=_402E8211-9928-42CF-81AE-13DB60ABBC57--


From nobody Mon Oct 13 19:08:25 2014
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Date: Mon, 13 Oct 2014 22:08:07 -0400
Message-ID: <CAHbuEH7UsY_UEZ_Rg23wtm_V8CPZ8drRyF+tssRBZRK6AJH3qA@mail.gmail.com>
From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
To: Carsten Bormann <cabo@tzi.org>
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Cc: "robert.cragie@gridmerge.com" <robert.cragie@gridmerge.com>, Michael StJohns <msj@nthpermutation.com>, "ace@ietf.org" <ace@ietf.org>, "dtls-iot@ietf.org" <dtls-iot@ietf.org>, Stefanie Gerdes <gerdes@tzi.de>
Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real world liability perspective
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On Mon, Oct 13, 2014 at 6:53 AM, Carsten Bormann <cabo@tzi.org> wrote:

> On 13 Oct 2014, at 12:21, Robert Cragie <robert.cragie@gridmerge.com>
> wrote:
>
> > I think Mike's "ship or die" comment is very relevant.
>
> I completely agree.
>
> Unfortunately, there is very little that we can do about this in the IETF=
.
>
> I believe it is worth analyzing the unsavory situation we are in, to some
> greater detail.
>
> =E2=80=94 even if the companies wanted, they don=E2=80=99t have (and cann=
ot afford) the
> engineering in house that could be tasked to create a secure product (the=
re
> is one exception in the consumer electronics space, and their track recor=
d
> still isn=E2=80=99t exactly stellar)
> =E2=80=94 there is little economic incentive to be secure (no teeth in th=
e product
> liability)
> =E2=80=94 sales and thus economic success is dominated by =E2=80=9Cease o=
f use=E2=80=9D
>   =E2=80=94 and this is amplified by the need to minimize costly customer=
 care
> contacts
> =E2=80=94 ease of use is dominated by
>   =E2=80=94 expectations of users (plug and play etc.)
>     =E2=80=94 you can=E2=80=99t actually be more secure in a way that cau=
ses hassle that
> users don=E2=80=99t expect
>   =E2=80=94 interoperability with what=E2=80=99s already there
>     =E2=80=94 which includes deployed systems with abysmal security
>       =E2=80=94 that might damage the security of the IoT gear if it reli=
es on that
>       =E2=80=94 or bugs/unforeseen interactions of the IoT gear might dam=
age the
> =E2=80=9Csecurity=E2=80=9D of deployed systems
>

We should do what we can within the scope of work for ACE.  When we get
further into this work, having some open source implementations could
help.  The hard part may be reaching the vast number of products for which
these solutions might apply so their engineers are aware of the work and
other efforts they should be leveraging.  We can't really worry about the
marketing, but there is a real need to improve the state of security for
IoT and I look forward to seeing what this team does to help.

Does this article and discussion influence the use cases?  I think that's
where we are at right now and contributions are welcome to improve,
discuss, or add use cases.

Thanks,
Kathleen

>
> It is very hard to secure home IoT if that needs to plug into and interac=
t
> with other networked home gear in its current insecure state.  My only ho=
pe
> is that if IoT gear can be made to lead in usable security, that might
> shift expectations.  It seems we=E2=80=99ll have to do some of the engine=
ering here
> that the gear makers can=E2=80=99t.
>
> We also need to spend more time pointing out that, if it isn=E2=80=99t us=
ably
> secure, it=E2=80=99s *not* IoT.
>
> Gr=C3=BC=C3=9Fe, Carsten
>
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace
>



--=20

Best regards,
Kathleen

--047d7b342ba6859d170505587cb8
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Oct 13, 2014 at 6:53 AM, Carsten Bormann <span dir=3D"ltr">&lt;=
<a href=3D"mailto:cabo@tzi.org" target=3D"_blank">cabo@tzi.org</a>&gt;</spa=
n> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex"><span class=3D"">On 13 Oct 2014=
, at 12:21, Robert Cragie &lt;<a href=3D"mailto:robert.cragie@gridmerge.com=
">robert.cragie@gridmerge.com</a>&gt; wrote:<br>
<br>
&gt; I think Mike&#39;s &quot;ship or die&quot; comment is very relevant.<b=
r>
<br>
</span>I completely agree.<br>
<br>
Unfortunately, there is very little that we can do about this in the IETF.<=
br>
<br>
I believe it is worth analyzing the unsavory situation we are in, to some g=
reater detail.<br>
<br>
=E2=80=94 even if the companies wanted, they don=E2=80=99t have (and cannot=
 afford) the engineering in house that could be tasked to create a secure p=
roduct (there is one exception in the consumer electronics space, and their=
 track record still isn=E2=80=99t exactly stellar)<br>
=E2=80=94 there is little economic incentive to be secure (no teeth in the =
product liability)<br>
=E2=80=94 sales and thus economic success is dominated by =E2=80=9Cease of =
use=E2=80=9D<br>
=C2=A0 =E2=80=94 and this is amplified by the need to minimize costly custo=
mer care contacts<br>
=E2=80=94 ease of use is dominated by<br>
=C2=A0 =E2=80=94 expectations of users (plug and play etc.)<br>
=C2=A0 =C2=A0 =E2=80=94 you can=E2=80=99t actually be more secure in a way =
that causes hassle that users don=E2=80=99t expect<br>
=C2=A0 =E2=80=94 interoperability with what=E2=80=99s already there<br>
=C2=A0 =C2=A0 =E2=80=94 which includes deployed systems with abysmal securi=
ty<br>
=C2=A0 =C2=A0 =C2=A0 =E2=80=94 that might damage the security of the IoT ge=
ar if it relies on that<br>
=C2=A0 =C2=A0 =C2=A0 =E2=80=94 or bugs/unforeseen interactions of the IoT g=
ear might damage the =E2=80=9Csecurity=E2=80=9D of deployed systems<br></bl=
ockquote><div><br></div><div>We should do what we can within the scope of w=
ork for ACE.=C2=A0 When we get further into this work, having some open sou=
rce implementations could help.=C2=A0 The hard part may be reaching the vas=
t number of products for which these solutions might apply so their enginee=
rs are aware of the work and other efforts they should be leveraging.=C2=A0=
 We can&#39;t really worry about the marketing, but there is a real need to=
 improve the state of security for IoT and I look forward to seeing what th=
is team does to help.</div><div><br></div><div>Does this article and discus=
sion influence the use cases?=C2=A0 I think that&#39;s where we are at righ=
t now and contributions are welcome to improve, discuss, or add use cases.<=
/div><div><br></div><div>Thanks,</div><div>Kathleen</div><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">
<br>
It is very hard to secure home IoT if that needs to plug into and interact =
with other networked home gear in its current insecure state.=C2=A0 My only=
 hope is that if IoT gear can be made to lead in usable security, that migh=
t shift expectations.=C2=A0 It seems we=E2=80=99ll have to do some of the e=
ngineering here that the gear makers can=E2=80=99t.<br>
<br>
We also need to spend more time pointing out that, if it isn=E2=80=99t usab=
ly secure, it=E2=80=99s *not* IoT.<br>
<br>
Gr=C3=BC=C3=9Fe, Carsten<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
_______________________________________________<br>
Ace mailing list<br>
<a href=3D"mailto:Ace@ietf.org">Ace@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/ace" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/ace</a><br>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>=
<div dir=3D"ltr"><br><div>Best regards,</div><div>Kathleen</div></div>
</div></div>

--047d7b342ba6859d170505587cb8--


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Cc: "dtls-iot@ietf.org" <dtls-iot@ietf.org>, "ace@ietf.org" <ace@ietf.org>
Subject: [Ace] "Apple Stores Will Sell a Smart Lock for Your Front Door"
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Hi Carsten/Michael,

(And changing the Email subject)


I found this article also very interesting (and it contained some relevant =
references to the smart lights and electronic keys use cases that had been =
previously discussed on these lists).

http://www.businessweek.com/articles/2014-10-14/apple-stores-will-sell-yves=
-behars-smart-lock-for-homekit#r=3Dread =20


Best Regards,


Akbar

-----Original Message-----
From: Ace [mailto:ace-bounces@ietf.org] On Behalf Of Carsten Bormann
Sent: Sunday, October 12, 2014 2:53 AM
To: StJohns, Michael
Cc: dtls-iot@ietf.org; ace@ietf.org
Subject: Re: [Ace] [Dtls-iot] Interesting article on IOT security from real=
 world liability perspective

On 12 Oct 2014, at 07:11, StJohns, Michael <msj@nthpermutation.com> wrote:

> http://money.cnn.com/2014/10/08/technology/security/internet-of-things-se=
curity/index.html?iid=3DHP_LN&hpt=3Dhp_bn5

If you take the effort to look at the vulnerabilities reported, it is inter=
esting to see that they are all exploiting the lame security model for toda=
y's home networks: A single shared-key WiFi password that grants access to =
everything.

The LiFX vulnerability was caused by the light bulbs needing to tell each o=
ther that shared-key WiFi password over the (unsecured) 802.15.4 network.  =
(Well, it was dumb enough to communicate that key in an unsecured fashion, =
but the damage that LiFX could cause was much worse due to the sensitivity =
of the WiFi key.)

The Belkin camera vulnerability was caused by handing out the permanent key=
s for cloud access to the camera to anyone that had access to the WiFi netw=
ork, even temporarily.  (That was probably considered OK because the shared=
-key protected home network is "secure", no?)

Instead of having this simple-minded perimeter security, we need to move to=
 real, authenticated authorization.  That's what ACE is about.

Of course, as long as the IoT devices need the WiFi password to access the =
network, and other devices in the home rely on lame WiFi perimeter security=
, those other devices will remain vulnerable to any bugs in the IoT devices=
.  If you want to keep those lame other devices, the only solution here is =
to firewall them off.  (Using IPv6 for the IoT devices helps quite a way he=
re.)

The next time you read one of those dime-a-dozen articles about "IoT securi=
ty", read closer and find out they are really a lament about today's lame h=
ome network security model.

Gr=FC=DFe, Carsten

_______________________________________________
Ace mailing list
Ace@ietf.org
https://www.ietf.org/mailman/listinfo/ace


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Subject: Re: [Ace] Constrained Node/Network Cluster @ IETF91, "final" version
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On 12 Oct 2014, at 10:40, Carsten Bormann <cabo@tzi.org> wrote:

> A first draft version of the IETF91 agenda is out.
> ** THIS IS GOING TO CHANGE ** for conflict resolution,
> so please don't make travel arrangements based on it.
>=20
> Here is my usual eclectic condensed agenda built from that. =20
> All times are HST (UTC-1000) (use =
https://datatracker.ietf.org/meeting/agenda-utc and press the button to =
get your local time in case you want to listen in from remote).

Here is an update with the =93final=94 agenda (caveat viator).
Note the 6TiSCH move, and the newly scheduled JOSE meeting (across DICE, =
ouch).

Gr=FC=DFe, Carsten


MONDAY, November 10, 2014

0900-1130  Morning Session I
Coral 2 	APP	appsawg	Applications Area Working Group WG - =
Combined with APPAREA
Coral 4 	OPS	v6ops	IPv6 Operations WG

1300-1500  Afternoon Session I
Coral 4 	RTG	bier	Bit Indexed Explicit Replication BOF

1520-1720  Afternoon Session II
Coral 1 	INT	detnet	Deterministic Networking BOF
Coral 5 	OPS	anima	Autonomic Networking Integrated Model =
and Approach BOF
Coral 3 	OPS	v6ops	IPv6 Operations WG

1730-1830  Afternoon Session III
Coral 5 	OPS	anima	Autonomic Networking Integrated Model =
and Approach BOF
Coral 1 	SEC ***	dice	DTLS In Constrained Environments WG
Rainbow Ste 1/2	SEC	jose	Javascript Object Signing and Encryption =
WG

TUESDAY, November 11, 2014

0900-1130  Morning Session I
Coral 2 	APP	uta	Using TLS in Applications WG
Kahili 1/2	INT ***	6lo	IPv6 over Networks of =
Resource-constrained Nodes WG
Coral 5 	TSV	tsvarea	Transport Area Open Meeting

1300-1500  Afternoon Session I
Coral 1 	APP	httpbis	Hypertext Transfer Protocol WG
Coral 4 	RTG	rtgarea	Routing Area Open Meeting
Coral 2 	TSV	tsvwg	Transport Area Working Group WG

1520-1720  Afternoon Session II
Coral 2 	APP ***	core	Constrained RESTful Environments WG
Coral 5 	RAI	webpush	Web-Based Push Notifications WG

WEDNESDAY, November 12, 2014

0900-1130  Morning Session I
Kahili 1/2	APP ***	core	Constrained RESTful Environments WG
Coral 3 	INT	homenet	Home Networking WG
Lehua Suite	SEC	oauth	Web Authorization Protocol WG
Coral 4 	TSV	rmcat	RTP Media Congestion Avoidance =
Techniques WG

1300-1500  Afternoon Session I
Coral 5 	SEC ***	ace	Authentication and Authorization for =
Constrained Environments WG

1520-1650  Afternoon Session II
Coral 4 	APP	httpbis	Hypertext Transfer Protocol WG

THURSDAY, November 13, 2014

0900-1130  Morning Session I
Hibiscus 1/2	INT ***	6tisch	IPv6 over the TSCH mode of IEEE =
802.15.4e WG
Coral 5 	SEC	tls	Transport Layer Security WG
Coral 2 	TSV	taps	Transport Services WG

1300-1500  Afternoon Session I
Coral 4 	INT	dnssd	Extensions for Scalable DNS Service =
Discovery  WG
Coral 3 	SEC	saag	Security Area Open Meeting
Coral 1 	TSV	tsvwg	Transport Area Working Group WG

1520-1620  Afternoon Session II
Coral 4 	INT ***	lwig	Light-Weight Implementation Guidance WG

FRIDAY, November 14, 2014

0900-1130  Morning Session I
Coral 3 	INT	6man	IPv6 Maintenance WG
Coral 1 	TSV	tcpinc	TCP Increased Security WG

1150-1320  Afternoon Session I
Coral 4 	INT	intarea	Internet Area Working Group WG
Coral 2 	SEC	httpauth	Hypertext Transfer Protocol =
Authentication WG



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From: Likepeng <likepeng@huawei.com>
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Hello all,

Kindly remind that draft submission deadline is next Monday.

  *   2014-10-27 (Monday): Internet Draft submission cut-off (for all draft=
s, including -00) by UTC 23:59, upload using IETF ID Submission Tool<https:=
//datatracker.ietf.org/submit/>.
  *   2014-10-27 (Monday): Draft Working Group agendas due by UTC 23:59, up=
load using IETF Meeting Materials Management Tool<https://datatracker.ietf.=
org/cgi-bin/wg/wg_proceedings.cgi>.
Also please send us (ace-chairs@tools.ietf.org) your agenda request for the=
 F2F meeting.

Thanks,

Kind Regards
Kepeng

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<p class=3D"MsoNormal"><span lang=3D"EN-US">Hello all,<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Kindly remind that draft submis=
sion deadline is next Monday.<o:p></o:p></span></p>
<ul type=3D"disc">
<li class=3D"MsoNormal" style=3D"color:black;mso-margin-top-alt:auto;mso-ma=
rgin-bottom-alt:auto;text-align:left;mso-list:l0 level1 lfo1">
<strong><span lang=3D"EN-US" style=3D"font-size:9.5pt;font-family:&quot;Ver=
dana&quot;,&quot;sans-serif&quot;">2014-10-27 (Monday):</span></strong><spa=
n lang=3D"EN-US" style=3D"font-size:9.5pt;font-family:&quot;Verdana&quot;,&=
quot;sans-serif&quot;"> Internet Draft submission cut-off (for all drafts, =
including
 -00) by UTC 23:59, upload using <a href=3D"https://datatracker.ietf.org/su=
bmit/">IETF ID Submission Tool</a>.<o:p></o:p></span></li><li class=3D"MsoN=
ormal" style=3D"color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:a=
uto;text-align:left;mso-list:l0 level1 lfo1">
<strong><span lang=3D"EN-US" style=3D"font-size:9.5pt;font-family:&quot;Ver=
dana&quot;,&quot;sans-serif&quot;">2014-10-27 (Monday):</span></strong><spa=
n lang=3D"EN-US" style=3D"font-size:9.5pt;font-family:&quot;Verdana&quot;,&=
quot;sans-serif&quot;"> Draft Working Group agendas due by UTC 23:59, uploa=
d using
<a href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF=
 Meeting Materials Management Tool</a>.<o:p></o:p></span></li></ul>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also please send us (ace-chairs=
@tools.ietf.org) your agenda request for the F2F meeting.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Kind Regards<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Kepeng<o:p></o:p></span></p>
</div>
</body>
</html>

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Date: Sat, 25 Oct 2014 09:38:34 +0200
From: "Dr. Corinna Schmitt" <schmitt@ifi.uzh.ch>
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Cc: Hannes Tschofenig <hannes.tschofenig@gmx.net>
Subject: Re: [Ace] Draft submission deadline
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Dear Kepeng,

thanks for the reminder. Due to overlapping events I will not join IETF 
91. Thus, we decided to submit the draft update until end of 2014.
I hope to find some time to join the ACE session remotely.

Regards,
Corinna


Am 25.10.14 um 05:16 schrieb Likepeng:
>
> Hello all,
>
> Kindly remind that draft submission deadline is next Monday.
>
>   * *2014-10-27 (Monday):*Internet Draft submission cut-off (for all
>     drafts, including -00) by UTC 23:59, upload using IETF ID
>     Submission Tool <https://datatracker.ietf.org/submit/>.
>   * *2014-10-27 (Monday):*Draft Working Group agendas due by UTC
>     23:59, upload using IETF Meeting Materials Management Tool
>     <https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi>.
>
> Also please send us (ace-chairs@tools.ietf.org) your agenda request 
> for the F2F meeting.
>
> Thanks,
>
> Kind Regards
>
> Kepeng
>
>
>
> _______________________________________________
> Ace mailing list
> Ace@ietf.org
> https://www.ietf.org/mailman/listinfo/ace


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    <div class="moz-cite-prefix">Dear Kepeng,<br>
      <br>
      thanks for the reminder. Due to overlapping events I will not join
      IETF 91. Thus, we decided to submit the draft update until end of
      2014.<br>
      I hope to find some time to join the ACE session remotely.<br>
      <br>
      Regards,<br>
      Corinna<br>
      <br>
      <br>
      Am 25.10.14 um 05:16 schrieb Likepeng:<br>
    </div>
    <blockquote
cite="mid:34966E97BE8AD64EAE9D3D6E4DEE36F2581A8C23@SZXEMA501-MBS.china.huawei.com"
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        <p class="MsoNormal"><span lang="EN-US">Hello all,<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US">Kindly remind that draft
            submission deadline is next Monday.<o:p></o:p></span></p>
        <ul type="disc">
          <li class="MsoNormal"
            style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:left;mso-list:l0
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            <strong><span
style="font-size:9.5pt;font-family:&quot;Verdana&quot;,&quot;sans-serif&quot;"
                lang="EN-US">2014-10-27 (Monday):</span></strong><span
style="font-size:9.5pt;font-family:&quot;Verdana&quot;,&quot;sans-serif&quot;"
              lang="EN-US"> Internet Draft submission cut-off (for all
              drafts, including -00) by UTC 23:59, upload using <a
                moz-do-not-send="true"
                href="https://datatracker.ietf.org/submit/">IETF ID
                Submission Tool</a>.<o:p></o:p></span></li>
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style="font-size:9.5pt;font-family:&quot;Verdana&quot;,&quot;sans-serif&quot;"
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style="font-size:9.5pt;font-family:&quot;Verdana&quot;,&quot;sans-serif&quot;"
              lang="EN-US"> Draft Working Group agendas due by UTC
              23:59, upload using
              <a moz-do-not-send="true"
                href="https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF
                Meeting Materials Management Tool</a>.<o:p></o:p></span></li>
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        <p class="MsoNormal"><span lang="EN-US">Also please send us
            (<a class="moz-txt-link-abbreviated" href="mailto:ace-chairs@tools.ietf.org">ace-chairs@tools.ietf.org</a>) your agenda request for the F2F
            meeting.<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US">Thanks,<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US">Kind Regards<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-US">Kepeng<o:p></o:p></span></p>
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      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Ace mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Ace@ietf.org">Ace@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/ace">https://www.ietf.org/mailman/listinfo/ace</a>
</pre>
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--------------030307000106050603090906--

--------------070607030308000007080106--


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This is a cryptographically signed message in MIME format.

--------------ms080106000102030809050207
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Hello,

here is an updated version of our use-case draft. We have tried to=20
integrate all comments we have received and we have also tried to=20
simplify the document. Furthermore we have shifted focus from=20
"requirements" (which some didn't like) to "authorization problems that=20
need to be solved". The idea behind this change was to make the use=20
cases even more solution independent, and just highlight the problems=20
that solutions need to address.

We also added two new use cases and expanded the smart metering use case.=



Regards,

Ludwig Seitz


-------- Forwarded Message --------
Subject: New Version Notification for draft-seitz-ace-usecases-02.txt
Date: Mon, 27 Oct 2014 03:04:04 -0700
From: internet-drafts@ietf.org
To: Mehdi Mani <mehdi.mani@itron.com>, Sandeep Kumar=20
<sandeep.kumar@philips.com>, Goeran Selander=20
<goran.selander@ericsson.com>, Sandeep S. Kumar=20
<sandeep.kumar@philips.com>, Ludwig Seitz <ludwig@sics.se>, Goran=20
Selander <goran.selander@ericsson.com>, Stefanie Gerdes=20
<gerdes@tzi.org>, Stefanie Gerdes <gerdes@tzi.org>, Ludwig Seitz=20
<ludwig@sics.se>, Mehdi Mani <mehdi.mani@itron.com>


A new version of I-D, draft-seitz-ace-usecases-02.txt
has been successfully submitted by Ludwig Seitz and posted to the
IETF repository.

Name:		draft-seitz-ace-usecases
Revision:	02
Title:		ACE use cases
Document date:	2014-10-27
Group:		Individual Submission
Pages:		24
URL:=20
http://www.ietf.org/internet-drafts/draft-seitz-ace-usecases-02.txt
Status:         https://datatracker.ietf.org/doc/draft-seitz-ace-usecases=
/
Htmlized:       http://tools.ietf.org/html/draft-seitz-ace-usecases-02
Diff:           http://www.ietf.org/rfcdiff?url2=3Ddraft-seitz-ace-usecas=
es-02

Abstract:
    Constrained devices are nodes with limited processing power, storage
    space and transmission capacities.  These devices in many cases do
    not provide user interfaces and are often intended to interact
    without human intervention.

    This document comprises a collection of representative use cases for
    the application of authentication and authorization in constrained
    environments.  These use cases aim at identifying authorization
    problems that arise during the lifecylce of a constrained device and
    are intended to provide a guideline for developing a comprehensive
    authentication and access control solution for this class of
    scenarios.

    Where specific details are relevant, it is assumed that the devices
    use the Constrained Application Protocol (CoAP) as communication
    protocol, however most conclusions apply generally.

=20



Please note that it may take a couple of minutes from the time of submiss=
ion
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat





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This is a cryptographically signed message in MIME format.

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We have submitted an update of draft-seitz-ace-problem-description. The=20
update consists of minor editorial changes and some added assumptions=20
and requirements.

/Ludwig


-------- Forwarded Message --------
Subject: New Version Notification for=20
draft-seitz-ace-problem-description-02.txt
Date: Mon, 27 Oct 2014 09:55:42 -0700
From: internet-drafts@ietf.org
To: Ludwig Seitz <ludwig@sics.se>, Goeran Selander=20
<goran.selander@ericsson.com>, Ludwig Seitz <ludwig@sics.se>, Goran=20
Selander <goran.selander@ericsson.com>


A new version of I-D, draft-seitz-ace-problem-description-02.txt
has been successfully submitted by Ludwig Seitz and posted to the
IETF repository.

Name:		draft-seitz-ace-problem-description
Revision:	02
Title:		Problem Description for Authorization in Constrained Environments=

Document date:	2014-10-27
Group:		Individual Submission
Pages:		19
URL:=20
http://www.ietf.org/internet-drafts/draft-seitz-ace-problem-description-0=
2.txt
Status:=20
https://datatracker.ietf.org/doc/draft-seitz-ace-problem-description/
Htmlized:=20
http://tools.ietf.org/html/draft-seitz-ace-problem-description-02
Diff:=20
http://www.ietf.org/rfcdiff?url2=3Ddraft-seitz-ace-problem-description-02=


Abstract:
    We present a problem description for authentication and authorization=

    in constrained-node networks, i.e. networks where some devices have
    severe constraints on memory, processing, power and communication
    bandwidth.

=20



Please note that it may take a couple of minutes from the time of submiss=
ion
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat





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Cc: Ludwig Seitz <ludwig@sics.se>, John Mattsson <john.mattsson@ericsson.com>
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Hi all,

Although we are still collecting use cases, we would like in parallel to
start discussing object security for CoAP. We have submitted a new draft
on the topic.

The draft presents one method to integrity protect individual CoAP
requests and responses by including a JWS detached signature as a new CoAP
option (called the "JWS option"). This provides end-to-end security of
payload, request method and other data, e.g. in store-and-forward use
cases where DTLS is not sufficient.

As is noted in the JWS draft, a unique message identifier is required for
replay protection, and for this purpose we introduce sequence numbers in
the JOSE header of the JWS option. We elaborate on how this can work
together with proxy caching and CoAP Observe. This first version of our
draft is focusing on integrity protection, we plan to cover encryption in
later version. The JWS option can be used in conjunction with hop-by-hop
DTLS/TLS.

The draft may be interesting also in the of context of secure multicast,
securing CoAP over SMS, and  CoAP endpoint identification (cf. key
identifiers).

We would like to present this in the ACE slot in Hawaii.


Thanks,
G=F6ran





On 27/10/14 17:34, "internet-drafts@ietf.org" <internet-drafts@ietf.org>
wrote:

>
>A new version of I-D, draft-selander-ace-object-security-00.txt
>has been successfully submitted by Ludwig Seitz and posted to the
>IETF repository.
>
>Name:		draft-selander-ace-object-security
>Revision:	00
>Title:		October 27, 2014
>Document date:	2014-10-27
>Group:		Individual Submission
>Pages:		26
>URL:           =20
>http://www.ietf.org/internet-drafts/draft-selander-ace-object-security-00.
>txt
>Status:        =20
>https://datatracker.ietf.org/doc/draft-selander-ace-object-security/
>Htmlized:      =20
>http://tools.ietf.org/html/draft-selander-ace-object-security-00
>
>
>Abstract:
>   We present a format for data object security in Constrained
>   Application Protocol CoAP, i.e. protection of individual request and
>   response messages between client and server.
>
>                 =20
>       =20
>
>
>Please note that it may take a couple of minutes from the time of
>submission
>until the htmlized version and diff are available at tools.ietf.org.
>
>The IETF Secretariat
>


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From: Bert Greevenbosch <Bert.Greevenbosch@huawei.com>
To: "Ace@ietf.org" <Ace@ietf.org>
Thread-Topic: Submission of ACE comparison draft
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Subject: [Ace] Submission of ACE comparison draft
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Hello all,

I have submitted the following draft for ACE:
http://datatracker.ietf.org/doc/draft-greevenbosch-ace-comparison/

The document compares the currently proposed solutions for ACE. It highligh=
ts both the similarities and the differences. Also, it discusses various po=
ssible architectural models.

I hope that this will help in the decision making process about which direc=
tion ACE should go.

I look forward to your comments, certainly also from the authors of the doc=
uments that are discussed in this draft.

@Hannes, Kepeng: can I have a time-slot to discuss this draft in Honolulu? =
Thanks!

Best regards,
Bert

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osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
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//www.w3.org/TR/REC-html40">
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<p class=3D"MsoNormal">Hello all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I have submitted the following draft for ACE:<o:p></=
o:p></p>
<p class=3D"MsoNormal"><a href=3D"http://datatracker.ietf.org/doc/draft-gre=
evenbosch-ace-comparison/">http://datatracker.ietf.org/doc/draft-greevenbos=
ch-ace-comparison/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The document compares the currently proposed solutio=
ns for ACE. It highlights both the similarities and the differences. Also, =
it discusses various possible architectural models.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I hope that this will help in the decision making pr=
ocess about which direction ACE should go.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I look forward to your comments, certainly also from=
 the authors of the documents that are discussed in this draft.<o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">@Hannes, Kepeng: can I have a time-slot to discuss t=
his draft in Honolulu? Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Bert<o:p></o:p></p>
</div>
</body>
</html>

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From nobody Tue Oct 28 12:40:28 2014
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Hi all,

I submitted a new version of the actors draft. The main changes are
about terminology. I added some considerations on authentication,
authorization and security objectives.

Comments are very welcome!

A PDF version with more detailed graphics can be found at
http://tools.ietf.org/pdf/draft-gerdes-ace-actors-02.pdf

Best regards,
Steffi


-------- Original Message --------
Subject: New Version Notification for draft-gerdes-ace-actors-02.txt
Date: Mon, 27 Oct 2014 14:42:58 -0700
From: internet-drafts@ietf.org
To: Stefanie Gerdes <gerdes@tzi.org>, Stefanie Gerdes <gerdes@tzi.org>


A new version of I-D, draft-gerdes-ace-actors-02.txt
has been successfully submitted by Stefanie Gerdes and posted to the
IETF repository.

Name:		draft-gerdes-ace-actors
Revision:	02
Title:		Actors in the ACE Architecture
Document date:	2014-10-27
Group:		Individual Submission
Pages:		26
URL:
http://www.ietf.org/internet-drafts/draft-gerdes-ace-actors-02.txt
Status:         https://datatracker.ietf.org/doc/draft-gerdes-ace-actors/
Htmlized:       http://tools.ietf.org/html/draft-gerdes-ace-actors-02
Diff:           http://www.ietf.org/rfcdiff?url2=draft-gerdes-ace-actors-02

Abstract:
   Constrained nodes are small devices which are limited in terms of
   processing power, memory, non-volatile storage and transmission
   capacity.  Due to these constraints, commonly used security protocols
   are not easily applicable.  Nevertheless, an authentication and
   authorization solution is needed to ensure the security of these
   devices.

   Due to the limitations of the constrained nodes it is especially
   important to develop a light-weight security solution which is
   adjusted to the relevant security objectives of each participating
   party in this environment.  Necessary security measures must be
   identified and applied where needed.

   In this document, the required security related tasks are identified
   as guidance for the development of authentication and authorization
   solutions for constrained environments.  Based on the tasks, an
   architecture is developed to represent the relationships between the
   logical functional entities involved.





Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat





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From: Bert Greevenbosch <Bert.Greevenbosch@huawei.com>
To: "Ace@ietf.org" <Ace@ietf.org>
Thread-Topic: Upload of draft for "Pull Model"
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Hi all,

Monday I uploaded a draft for the "Pull Model".

http://datatracker.ietf.org/doc/draft-greevenbosch-ace-pull-model/

The draft describes an ACE solution, where the resource server directly con=
tacts the authorisation server to verify access rights of the client.

The idea is to keep the client separated from the authorisation process, as=
 it may be unable to access the AS directly, or it may not want to process =
access permissions.

I look forward to your comments.

Best regards,
Bert

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<p class=3D"MsoNormal">Hi all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Monday I uploaded a draft for the &quot;Pull Model&q=
uot;.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><a href=3D"http://datatracker.ietf.org/doc/draft-gre=
evenbosch-ace-pull-model/">http://datatracker.ietf.org/doc/draft-greevenbos=
ch-ace-pull-model/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The draft describes an ACE solution, where the resou=
rce server directly contacts the authorisation server to verify access righ=
ts of the client.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The idea is to keep the client separated from the au=
thorisation process, as it may be unable to access the AS directly, or it m=
ay not want to process access permissions.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I look forward to your comments.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Bert<o:p></o:p></p>
</div>
</body>
</html>

--_000_46A1DF3F04371240B504290A071B4DB63E7A6319SZXEMA510MBXchi_--


From nobody Tue Oct 28 19:03:50 2014
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From: Bert Greevenbosch <Bert.Greevenbosch@huawei.com>
To: "Ace@ietf.org" <Ace@ietf.org>
Thread-Topic: Upload of ACE for Resource Directory draft
Thread-Index: Ac/zHIzX0LvhWse8S1CH2PXt7v4lYg==
Date: Wed, 29 Oct 2014 02:03:37 +0000
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Subject: [Ace] Upload of ACE for Resource Directory draft
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Hi all,

On Monday, I uploaded a draft that applies ACE to the Resource Directory.

http://datatracker.ietf.org/doc/draft-greevenbosch-ace-resource-directory/

Since the Resource Directory is implemented as a CoAP client, ideally we ca=
n use standard ACE to protect it. The draft's aim is to describe how to do =
this.

However, since the ACE architecture is not yet chosen, the draft currently =
remains fairly high level, and mainly describes issues and related requirem=
ents for a solution to be described later.

The draft is informative, as its goal is not to specify new technology, but=
 rather to describe how ACE can be used for protection of the RD. I also th=
ink it is a good opportunity to see how ACE works in a practical situation.

Comments are welcome.

Best regards,
Bert

--_000_46A1DF3F04371240B504290A071B4DB63E7A6329SZXEMA510MBXchi_
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<p class=3D"MsoNormal">Hi all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">On Monday, I uploaded a draft that applies ACE to th=
e Resource Directory.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><a href=3D"http://datatracker.ietf.org/doc/draft-gre=
evenbosch-ace-resource-directory/">http://datatracker.ietf.org/doc/draft-gr=
eevenbosch-ace-resource-directory/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Since the Resource Directory is implemented as a CoA=
P client, ideally we can use standard ACE to protect it. The draft's aim is=
 to describe how to do this.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">However, since the ACE architecture is not yet chose=
n, the draft currently remains fairly high level, and mainly describes issu=
es and related requirements for a solution to be described later.<o:p></o:p=
></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The draft is informative, as its goal is not to spec=
ify new technology, but rather to describe how ACE can be used for protecti=
on of the RD. I also think it is a good opportunity to see how ACE works in=
 a practical situation.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Comments are welcome.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Bert<o:p></o:p></p>
</div>
</body>
</html>

--_000_46A1DF3F04371240B504290A071B4DB63E7A6329SZXEMA510MBXchi_--


From nobody Tue Oct 28 19:25:32 2014
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From: Bert Greevenbosch <Bert.Greevenbosch@huawei.com>
To: "Ace@ietf.org" <Ace@ietf.org>
Thread-Topic: Upload of ACE for Resource Directory draft (correction)
Thread-Index: AQHP8x+XE891CvtUKU++M9ZJMMszwg==
Date: Wed, 29 Oct 2014 02:25:23 +0000
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I made a typo in the previous e-mail: the RD is implemented as a CoAP serve=
r, not a CoAP client.
---
Hi all,

On Monday, I uploaded a draft that applies ACE to the Resource Directory.

http://datatracker.ietf.org/doc/draft-greevenbosch-ace-resource-directory/

Since the Resource Directory is implemented as a CoAP server, ideally we ca=
n use standard ACE to protect it. The draft's aim is to describe how to do =
this.

However, since the ACE architecture is not yet chosen, the draft currently =
remains fairly high level, and mainly describes issues and related requirem=
ents for a solution to be described later.

The draft is informative, as its goal is not to specify new technology, but=
 rather to describe how ACE can be used for protection of the RD. I also th=
ink it is a good opportunity to see how ACE works in a practical situation.

Comments are welcome.

Best regards,
Bert

--_000_46A1DF3F04371240B504290A071B4DB63E7A63DFSZXEMA510MBXchi_
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<p class=3D"MsoNormal">I made a typo in the previous e-mail: the RD is impl=
emented as a CoAP server, not a CoAP client.<o:p></o:p></p>
<p class=3D"MsoNormal">---</p>
<p class=3D"MsoNormal">Hi all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">On Monday, I uploaded a draft that applies ACE to th=
e Resource Directory.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><a href=3D"http://datatracker.ietf.org/doc/draft-gre=
evenbosch-ace-resource-directory/">http://datatracker.ietf.org/doc/draft-gr=
eevenbosch-ace-resource-directory/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Since the Resource Directory is implemented as a CoA=
P server, ideally we can use standard ACE to protect it. The draft's aim is=
 to describe how to do this.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">However, since the ACE architecture is not yet chose=
n, the draft currently remains fairly high level, and mainly describes issu=
es and related requirements for a solution to be described later.<o:p></o:p=
></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The draft is informative, as its goal is not to spec=
ify new technology, but rather to describe how ACE can be used for protecti=
on of the RD. I also think it is a good opportunity to see how ACE works in=
 a practical situation.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Comments are welcome.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Bert<o:p></o:p></p>
</div>
</body>
</html>

--_000_46A1DF3F04371240B504290A071B4DB63E7A63DFSZXEMA510MBXchi_--


From nobody Wed Oct 29 08:42:00 2014
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Subject: Re: [Ace] FW: New Version Notification for draft-selander-ace-object-security-00.txt
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Hi All,
Would just like to take this opportunity to share some progress we have =

made regarding object security based on CoAP.
During London meeting (IETF 89) we submitted a draft describing a work in =

progress on providing inherent capability in CoAP to mutually authenticate =

the endpoints and agreeing on a session key. At present the scheme is =

conceived for systems where provisioning pre-shared secret is possible. =

The session-key generated in the process can be used for object security =

for CoAP payloads.
The draft is available at: =

https://tools.ietf.org/html/draft-bhattacharyya-core-coap-lite-auth-00. =

The work has also been published : =

http://dl.acm.org/citation.cfm?id=3D2523504
http://ieeexplore.ieee.org/xpl/login.jsp?tp=3D&arnumber=3D6815204&url=3Dhtt=
p%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6815204 =

 =


Recently we have extended the work and created a scheme which we name =

"LESS (Lightweight Establishment of Secure Session) on CoAP". The proposed =

scheme models the full exchange as just two pairs of CoAP request/response =

and generates the key-pair (server-write-key, client-write-key) similar to =

DTLS. The scheme uses AES-CCM-8 encryption algorithm as proposed in sepc. =

The generated key-pair can be used to exchange CoAP payloads in a secure =

manner.

Further, we take a cross-layer approach to provide optional channl seurity =

to the full application layer message (CoAP header + payload). The =

resultant of the session establishment process over CoAP is used to create =

the session tuple {server-write-key, client-write-key, server-IV, =

client-IV}. (Ofcourse, IV generation is not same as proposed in DTLS).The =

session tuple is used to populate a structure same as the DTLS-PSK session =

structure without any modification. Once that is done, the control =

switches to transport layer and uses same DTLS-record-encryption technique =

to provide channel security to the full CoAP message.

Unfortunately, we could not publish the work as a draft as the work is =

under review in an international conference though I am attending IETF91. =

We may submit the full work as a draft before the next meeting.
However, we are sharing some comparative results that we achieved over a =

controlled emulated WAN. The results show that LESS is quite lightweight.

It will be really great to hear whether our approach makes sense and, most =

importantly, whether the problem we are trying to address does have some =

relevance.

 =


Regards
Abhijan Bhattacharyya
Associate Consultant
Scientist, Innovation Lab, Kolkata, India
Tata Consultancy Services
Mailto: abhijan.bhattacharyya@tcs.com
Website: http://www.tcs.com
____________________________________________
Experience certainty.   IT Services
                        Business Solutions
                        Consulting
____________________________________________



From:   G=F6ran Selander <goran.selander@ericsson.com>
To:     "ace@ietf.org" <ace@ietf.org>
Cc:     Ludwig Seitz <ludwig@sics.se>, John Mattsson =

<john.mattsson@ericsson.com>
Date:   10/27/2014 10:38 PM
Subject:        [Ace] FW: New Version Notification for =

draft-selander-ace-object-security-00.txt
Sent by:        "Ace" <ace-bounces@ietf.org>




Hi all,

Although we are still collecting use cases, we would like in parallel to
start discussing object security for CoAP. We have submitted a new draft
on the topic.

The draft presents one method to integrity protect individual CoAP
requests and responses by including a JWS detached signature as a new CoAP
option (called the "JWS option"). This provides end-to-end security of
payload, request method and other data, e.g. in store-and-forward use
cases where DTLS is not sufficient.

As is noted in the JWS draft, a unique message identifier is required for
replay protection, and for this purpose we introduce sequence numbers in
the JOSE header of the JWS option. We elaborate on how this can work
together with proxy caching and CoAP Observe. This first version of our
draft is focusing on integrity protection, we plan to cover encryption in
later version. The JWS option can be used in conjunction with hop-by-hop
DTLS/TLS.

The draft may be interesting also in the of context of secure multicast,
securing CoAP over SMS, and  CoAP endpoint identification (cf. key
identifiers).

We would like to present this in the ACE slot in Hawaii.


Thanks,
G=F6ran





On 27/10/14 17:34, "internet-drafts@ietf.org" <internet-drafts@ietf.org>
wrote:

>
>A new version of I-D, draft-selander-ace-object-security-00.txt
>has been successfully submitted by Ludwig Seitz and posted to the
>IETF repository.
>
>Name:                           draft-selander-ace-object-security
>Revision:               00
>Title:                          October 27, 2014
>Document date:          2014-10-27
>Group:                          Individual Submission
>Pages:                          26
>URL: =

>http://www.ietf.org/internet-drafts/draft-selander-ace-object-security-00
.
>txt
>Status: =

>https://datatracker.ietf.org/doc/draft-selander-ace-object-security/
>Htmlized: =

>http://tools.ietf.org/html/draft-selander-ace-object-security-00
>
>
>Abstract:
>   We present a format for data object security in Constrained
>   Application Protocol CoAP, i.e. protection of individual request and
>   response messages between client and server.
>
> =

> =

>
>
>Please note that it may take a couple of minutes from the time of
>submission
>until the htmlized version and diff are available at tools.ietf.org.
>
>The IETF Secretariat
>

_______________________________________________
Ace mailing list
Ace@ietf.org
https://www.ietf.org/mailman/listinfo/ace

=3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D
Notice: The information contained in this e-mail
message and/or attachments to it may contain =

confidential or privileged information. If you are =

not the intended recipient, any dissemination, use, =

review, distribution, printing or copying of the =

information contained in this e-mail message =

and/or attachments to it are strictly prohibited. If =

you have received this communication in error, =

please notify us by reply e-mail or telephone and =

immediately and permanently delete the message =

and any attachments. Thank you



--=_alternative 0056238365257D80_=
MIME-Version: 1.0
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<font size=3D2 face=3D"sans-serif">Hi All,</font>
<br><font size=3D2 face=3D"sans-serif">Would just like to take this opportu=
nity
to share some progress we have made regarding object security based on
CoAP.<br>
During London meeting (IETF 89) we submitted a draft describing a work
in progress on providing inherent capability in CoAP to mutually authentica=
te
the endpoints and agreeing on a session key. At present the scheme is conce=
ived
for systems where provisioning pre-shared secret is possible. The session-k=
ey
generated in the process can be used for object security for CoAP payloads.=
</font>
<br><font size=3D2 face=3D"sans-serif">The draft is available at: </font><a=
 href=3D"https://tools.ietf.org/html/draft-bhattacharyya-core-coap-lite-aut=
h-00"><font size=3D2 color=3Dblue face=3D"sans-serif">https://tools.ietf.or=
g/html/draft-bhattacharyya-core-coap-lite-auth-00</font></a><font size=3D2 =
color=3Dblue face=3D"sans-serif">.</font><font size=3D2 face=3D"sans-serif">
</font>
<br><font size=3D2 face=3D"sans-serif">The work has also been published : <=
/font>
<br><a href=3D"http://dl.acm.org/citation.cfm?id=3D2523504"><font size=3D2 =
color=3Dblue face=3D"sans-serif">http://dl.acm.org/citation.cfm?id=3D252350=
4</font></a>
<br><a href=3D"http://ieeexplore.ieee.org/xpl/login.jsp?tp=3D&amp;arnumber=
=3D6815204&amp;url=3Dhttp%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%=
3Farnumber%3D6815204"><font size=3D2 color=3Dblue face=3D"sans-serif">http:=
//ieeexplore.ieee.org/xpl/login.jsp?tp=3D&amp;arnumber=3D6815204&amp;url=3D=
http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6815204<=
/font></a><font size=3D2 face=3D"sans-serif">
&nbsp;</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Recently we have extended the work a=
nd
created a scheme which we name &quot;LESS (Lightweight Establishment of
Secure Session) on CoAP&quot;. The proposed scheme models the full exchange
as just two pairs of CoAP request/response and generates the key-pair (serv=
er-write-key,
client-write-key) similar to DTLS. The scheme uses AES-CCM-8 encryption
algorithm as proposed in sepc. The generated key-pair can be used to exchan=
ge
CoAP payloads in a secure manner.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Further, we take a cross-layer appro=
ach
to provide optional channl seurity to the full application layer message
(CoAP header + payload). The resultant of the session establishment process
over CoAP is used to create the session tuple {server-write-key, client-wri=
te-key,
server-IV, client-IV}. (Ofcourse, IV generation is not same as proposed
in DTLS).The session tuple is used to populate a structure same as the
DTLS-PSK session structure without any modification. Once that is done,
the control switches to transport layer and uses same DTLS-record-encryption
technique to provide channel security to the full CoAP message.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Unfortunately, we could not publish
the work as a draft as the work is under review in an international confere=
nce
though I am attending IETF91. We may submit the full work as a draft before
the next meeting.</font>
<br><font size=3D2 face=3D"sans-serif">However, we are sharing some compara=
tive
results that we achieved over a controlled emulated WAN. The results show
that LESS is quite lightweight.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">It will be really great to hear whet=
her
our approach makes sense and, most importantly, whether the problem we
are trying to address does have some relevance.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">&nbsp;<br>
<br>
Regards<br>
Abhijan Bhattacharyya<br>
Associate Consultant<br>
Scientist, Innovation Lab, Kolkata, India<br>
Tata Consultancy Services<br>
Mailto: abhijan.bhattacharyya@tcs.com<br>
Website: </font><a href=3Dhttp://www.tcs.com/><font size=3D2 face=3D"sans-s=
erif">http://www.tcs.com</font></a><font size=3D2 face=3D"sans-serif"><br>
____________________________________________<br>
Experience certainty. &nbsp; &nbsp; &nbsp; &nbsp;IT Services<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp;Business Solutions<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp;Consulting<br>
____________________________________________</font>
<br>
<br>
<br>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">From: &nbsp; &nbsp; =
&nbsp;
&nbsp;</font><font size=3D1 face=3D"sans-serif">G=F6ran Selander &lt;goran.=
selander@ericsson.com&gt;</font>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">To: &nbsp; &nbsp; &n=
bsp;
&nbsp;</font><font size=3D1 face=3D"sans-serif">&quot;ace@ietf.org&quot;
&lt;ace@ietf.org&gt;</font>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">Cc: &nbsp; &nbsp; &n=
bsp;
&nbsp;</font><font size=3D1 face=3D"sans-serif">Ludwig Seitz &lt;ludwig@sic=
s.se&gt;,
John Mattsson &lt;john.mattsson@ericsson.com&gt;</font>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">Date: &nbsp; &nbsp; =
&nbsp;
&nbsp;</font><font size=3D1 face=3D"sans-serif">10/27/2014 10:38 PM</font>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">Subject: &nbsp; &nbs=
p;
&nbsp; &nbsp;</font><font size=3D1 face=3D"sans-serif">[Ace] FW: New
Version Notification for draft-selander-ace-object-security-00.txt</font>
<br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">Sent by: &nbsp; &nbs=
p;
&nbsp; &nbsp;</font><font size=3D1 face=3D"sans-serif">&quot;Ace&quot;
&lt;ace-bounces@ietf.org&gt;</font>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=3D2><br>
Hi all,<br>
<br>
Although we are still collecting use cases, we would like in parallel to<br>
start discussing object security for CoAP. We have submitted a new draft<br>
on the topic.<br>
<br>
The draft presents one method to integrity protect individual CoAP<br>
requests and responses by including a JWS detached signature as a new CoAP<=
br>
option (called the &quot;JWS option&quot;). This provides end-to-end securi=
ty
of<br>
payload, request method and other data, e.g. in store-and-forward use<br>
cases where DTLS is not sufficient.<br>
<br>
As is noted in the JWS draft, a unique message identifier is required for<b=
r>
replay protection, and for this purpose we introduce sequence numbers in<br>
the JOSE header of the JWS option. We elaborate on how this can work<br>
together with proxy caching and CoAP Observe. This first version of our<br>
draft is focusing on integrity protection, we plan to cover encryption
in<br>
later version. The JWS option can be used in conjunction with hop-by-hop<br>
DTLS/TLS.<br>
<br>
The draft may be interesting also in the of context of secure multicast,<br>
securing CoAP over SMS, and &nbsp;CoAP endpoint identification (cf. key<br>
identifiers).<br>
<br>
We would like to present this in the ACE slot in Hawaii.<br>
<br>
<br>
Thanks,<br>
G=F6ran<br>
<br>
<br>
<br>
<br>
<br>
On 27/10/14 17:34, &quot;internet-drafts@ietf.org&quot; &lt;internet-drafts=
@ietf.org&gt;<br>
wrote:<br>
<br>
&gt;<br>
&gt;A new version of I-D, draft-selander-ace-object-security-00.txt<br>
&gt;has been successfully submitted by Ludwig Seitz and posted to the<br>
&gt;IETF repository.<br>
&gt;<br>
&gt;Name: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;draft-selande=
r-ace-object-security<br>
&gt;Revision: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; 00<br>
&gt;Title: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;October
27, 2014<br>
&gt;Document date: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; 2014-10-27<br>
&gt;Group: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Individual
Submission<br>
&gt;Pages: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;26<br>
&gt;URL: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br>
&gt;</font></tt><a href=3D"http://www.ietf.org/internet-drafts/draft-seland=
er-ace-object-security-00"><tt><font size=3D2>http://www.ietf.org/internet-=
drafts/draft-selander-ace-object-security-00</font></tt></a><tt><font size=
=3D2>.<br>
&gt;txt<br>
&gt;Status: &nbsp; &nbsp; &nbsp; &nbsp; <br>
&gt;</font></tt><a href=3D"https://datatracker.ietf.org/doc/draft-selander-=
ace-object-security/"><tt><font size=3D2>https://datatracker.ietf.org/doc/d=
raft-selander-ace-object-security/</font></tt></a><tt><font size=3D2><br>
&gt;Htmlized: &nbsp; &nbsp; &nbsp; <br>
&gt;</font></tt><a href=3D"http://tools.ietf.org/html/draft-selander-ace-ob=
ject-security-00"><tt><font size=3D2>http://tools.ietf.org/html/draft-selan=
der-ace-object-security-00</font></tt></a><tt><font size=3D2><br>
&gt;<br>
&gt;<br>
&gt;Abstract:<br>
&gt; &nbsp; We present a format for data object security in Constrained<br>
&gt; &nbsp; Application Protocol CoAP, i.e. protection of individual request
and<br>
&gt; &nbsp; response messages between client and server.<br>
&gt;<br>
&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br>
&gt; &nbsp; &nbsp; &nbsp; &nbsp;<br>
&gt;<br>
&gt;<br>
&gt;Please note that it may take a couple of minutes from the time of<br>
&gt;submission<br>
&gt;until the htmlized version and diff are available at tools.ietf.org.<br>
&gt;<br>
&gt;The IETF Secretariat<br>
&gt;<br>
<br>
_______________________________________________<br>
Ace mailing list<br>
Ace@ietf.org<br>
</font></tt><a href=3Dhttps://www.ietf.org/mailman/listinfo/ace><tt><font s=
ize=3D2>https://www.ietf.org/mailman/listinfo/ace</font></tt></a><tt><font =
size=3D2><br>
</font></tt>
<br><p>=3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D<br>
Notice: The information contained in this e-mail<br>
message and/or attachments to it may contain <br>
confidential or privileged information. If you are <br>
not the intended recipient, any dissemination, use, <br>
review, distribution, printing or copying of the <br>
information contained in this e-mail message <br>
and/or attachments to it are strictly prohibited. If <br>
you have received this communication in error, <br>
please notify us by reply e-mail or telephone and <br>
immediately and permanently delete the message <br>
and any attachments. Thank you</p>

<p></p>
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