Re: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-09 Thread Bill Stewart

At 01:13 AM 9/8/2005, Eugen Leitl wrote:

On Thu, Sep 08, 2005 at 05:31:32AM +0100, Dave Howe wrote:

>   Don't really need one. the Skype concept of "supernodes"
> - users that relay conversations for other users -
> could be used just as simply, and is

What hinders Mallory from running most of supernodes?


Budget?  But Mallory doesn't need to run *most* of the supernodes -
hitting just the current targets is good enough,
especially if the central sites or client software
can be tricked into not using encryption or using compromised keys.

>   Plus of course some sort of assurance that skype's crypto isn't 
snakeoil :)

It is snake oil until proven otherwise.


Yup.  They say they use AES, and that they use RSA to set up session keys.
The main issue is that they don't document their protocols or crypto,
and of course the usual failures are bad protocol design,
which can break systems that do include strong crypto.
The use of RSA for session key setup instead of Diffie-Hellman is a
strong sign that they don't really have a clue...


If you're in the SF Bay Area, Skype is having a developer get-together
in Palo Alto on Thursday 9/22.
http://www.skype.com/campaigns/skypenightpaloalto2005




Re: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-08 Thread Eugen Leitl
On Thu, Sep 08, 2005 at 05:31:32AM +0100, Dave Howe wrote:

>   Don't really need one. the Skype concept of "supernodes" - users that relay
> conversations for other users - could be used just as simply, and is

What hinders Mallory from running most of supernodes?

> Starbucks-compatable. If the feds had to try and monitor traffic for every 
> VoIP
> user that could potentially be used as a relay (*and* prove that any outbound
> traffic from their target wasn't relayed traffic from another user) life would
> get much harder for them much faster.
>   Plus of course some sort of assurance that skype's crypto isn't snakeoil :)

It is snake oil until proven otherwise.

-- 
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Re: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-07 Thread Dave Howe
Tyler Durden wrote:
> We need a WiFi VoIP over Tor app pronto! Let 'em CALEA -that-. Only then
> will the ghost of Tim May rest in piece.
  Don't really need one. the Skype concept of "supernodes" - users that relay
conversations for other users - could be used just as simply, and is
Starbucks-compatable. If the feds had to try and monitor traffic for every VoIP
user that could potentially be used as a relay (*and* prove that any outbound
traffic from their target wasn't relayed traffic from another user) life would
get much harder for them much faster.
  Plus of course some sort of assurance that skype's crypto isn't snakeoil :)



RE: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-07 Thread J.A. Terranson

On Wed, 7 Sep 2005, Tyler Durden wrote:

> Like I said:
>
> We need a WiFi VoIP over Tor app pronto! Let 'em CALEA -that-. Only then
> will the ghost of Tim May rest in piece.

Somehoe, I don't see the [legitimate] ghost of Tim May finding either rest
nor peace.


-- 
Yours,

J.A. Terranson
[EMAIL PROTECTED]
0xBD4A95BF


I like the idea of belief in drug-prohibition as a religion in that it is
a strongly held belief based on grossly insufficient evidence and
bolstered by faith born of intuitions flowing from the very beliefs they
are intended to support.

don zweig, M.D.



RE: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-07 Thread Tyler Durden

Like I said:

We need a WiFi VoIP over Tor app pronto! Let 'em CALEA -that-. Only then 
will the ghost of Tim May rest in piece.


Then again, the FBI probably loves hanging out in Starbucks anyway...

-TD



From: Eugen Leitl <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: [EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The  FBI 
is Having Trouble on the Line", Aug. 15)]

Date: Wed, 7 Sep 2005 15:58:08 +0200

- Forwarded message from David Farber <[EMAIL PROTECTED]> -

From: David Farber <[EMAIL PROTECTED]>
Date: Wed, 7 Sep 2005 09:48:13 -0400
To: Ip Ip 
Subject: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble 
on

the Line", Aug. 15)
X-Mailer: Apple Mail (2.734)
Reply-To: [EMAIL PROTECTED]



Begin forwarded message:

From: Seth David Schoen <[EMAIL PROTECTED]>
Date: September 5, 2005 6:10:02 PM EDT
To: David Farber <[EMAIL PROTECTED]>
Cc: Donna Wentworth <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: [E-PRV] Internet phone wiretapping ("Psst! The FBI is
Having Trouble on the Line", Aug. 15)


David Farber writes:


>Can I get a copy for IP
>

The original article is at

http://www.time.com/time/archive/preview/0,10987,1090908,00.html
(subscription required)

Here's the letter we sent:

Your account of FBI efforts to embed wiretapping into the design of
new Internet communication technologies ("Psst! The FBI is Having
Trouble on the Line," Notebook, August 15) is in error.

You claim that police "can't tap into [Internet] conversations or
identify the location of callers, even with court orders."

That is false. Internet service providers and VoIP companies have
consistently responded to such orders and turned over information
in their possession. There is no evidence that law enforcement is
having any trouble obtaining compliance.

But more disturbingly, you omit entirely any reference to the
grave threat these FBI initiatives pose to the personal privacy
and security of innocent Americans. The technologies currently
used to create wiretap-friendly computer networks make the people
on those networks more pregnable to attackers who want to steal
their data or personal information. And at a time when many of our
most fundamental consititutional rights are being stripped away in
the name of fighting terrorism, you implicitly endorse opening yet
another channel for potential government abuse.

The legislative history of the Communications Assistance for Law
Enforcement Act (CALEA) shows that Congress recognized the danger
of giving law enforcement this kind of surveillance power "in the
face of increasingly powerful and personally revealing
technologies"
(H.R. Rep. No. 103-827, 1994 U.S.C.C.A.N. 3489, 3493 [1994] [House
Report]). The law explicitly exempts so-called information
services;
law enforcement repeatedly assured civil libertarians that the
Internet would be excluded. Yet the FBI and FCC have now betrayed
that promise and stepped beyond the law, demanding that Internet
software be redesigned to facilitate eavesdropping. In the coming
months, we expect the federal courts to rein in these dangerously
expansive legal intepretations.

--
Seth Schoen
Staff Technologist[EMAIL PROTECTED]
Electronic Frontier Foundationhttp://www.eff.org/
454 Shotwell Street, San Francisco, CA  94110 1 415 436 9333 x107



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[EMAIL PROTECTED]: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on the Line", Aug. 15)]

2005-09-07 Thread Eugen Leitl
- Forwarded message from David Farber <[EMAIL PROTECTED]> -

From: David Farber <[EMAIL PROTECTED]>
Date: Wed, 7 Sep 2005 09:48:13 -0400
To: Ip Ip 
Subject: [IP] Internet phone wiretapping ("Psst! The FBI is Having Trouble on 
the Line", Aug. 15)
X-Mailer: Apple Mail (2.734)
Reply-To: [EMAIL PROTECTED]



Begin forwarded message:

From: Seth David Schoen <[EMAIL PROTECTED]>
Date: September 5, 2005 6:10:02 PM EDT
To: David Farber <[EMAIL PROTECTED]>
Cc: Donna Wentworth <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: [E-PRV] Internet phone wiretapping ("Psst! The FBI is  
Having Trouble on the Line", Aug. 15)


David Farber writes:


>Can I get a copy for IP
>

The original article is at

http://www.time.com/time/archive/preview/0,10987,1090908,00.html
(subscription required)

Here's the letter we sent:

Your account of FBI efforts to embed wiretapping into the design of
new Internet communication technologies ("Psst! The FBI is Having
Trouble on the Line," Notebook, August 15) is in error.

You claim that police "can't tap into [Internet] conversations or
identify the location of callers, even with court orders."

That is false. Internet service providers and VoIP companies have
consistently responded to such orders and turned over information
in their possession. There is no evidence that law enforcement is
having any trouble obtaining compliance.

But more disturbingly, you omit entirely any reference to the
grave threat these FBI initiatives pose to the personal privacy
and security of innocent Americans. The technologies currently
used to create wiretap-friendly computer networks make the people
on those networks more pregnable to attackers who want to steal
their data or personal information. And at a time when many of our
most fundamental consititutional rights are being stripped away in
the name of fighting terrorism, you implicitly endorse opening yet
another channel for potential government abuse.

The legislative history of the Communications Assistance for Law
Enforcement Act (CALEA) shows that Congress recognized the danger
of giving law enforcement this kind of surveillance power "in the
face of increasingly powerful and personally revealing  
technologies"
(H.R. Rep. No. 103-827, 1994 U.S.C.C.A.N. 3489, 3493 [1994] [House
Report]). The law explicitly exempts so-called information  
services;
law enforcement repeatedly assured civil libertarians that the
Internet would be excluded. Yet the FBI and FCC have now betrayed
that promise and stepped beyond the law, demanding that Internet
software be redesigned to facilitate eavesdropping. In the coming
months, we expect the federal courts to rein in these dangerously
expansive legal intepretations.

-- 
Seth Schoen
Staff Technologist[EMAIL PROTECTED]
Electronic Frontier Foundationhttp://www.eff.org/
454 Shotwell Street, San Francisco, CA  94110 1 415 436 9333 x107



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You are subscribed as [EMAIL PROTECTED]
To manage your subscription, go to
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- End forwarded message -
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