Re: Debian testing ISOs not GPG signed?

2014-04-15 Thread Steve McIntyre
On Sun, Mar 09, 2014 at 06:03:01PM +0100, Mattias Wadenstein wrote:
On Sun, 9 Mar 2014, Steve McIntyre wrote:

On Sun, Mar 09, 2014 at 02:17:20PM +0100, Marcel `sdrfnord` McKinnon wrote:

I just wanted to reinstall my system on new hardware so I downloaded the 
current
Debian testing 
(http://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-cd/)
build. After downloading it, I wanted to verify the integrity of the ISO (as 
I
was used to from the stable builds). But I did not find a signed checksum 
file.
Are testing builds not signed?? Is there another way to check the integrity 
of
the testing ISOs?

We (I) don't sign any of the non-release builds on cdimage, no. Only
official stable and beta releases are signed, meaning that they've
undergone some manual verification and testing. It's a deliberate
policy not to sign the testing images, so as to avoid keeping PGP key
material on a remote server.

It might be worth doing automatic signatures by a clearly labeled
automatic signing key, just to reducing the risk of someone
installing from a maliciously altered image. I do agree that the
proper release signing is not doable for testing images though.

Fair point, yes. I've just added a new testing CDs key for automatic
signing:

pub   4096R/09EA8AC3 2014-04-15
  Key fingerprint = F41D 3034 2F35 4669 5F65  C669 4246 8F40 09EA 8AC3
uid  Debian Testing CDs Automatic Signing Key 
debian-cd@lists.debian.org
sub   4096R/6BD05CFB 2014-04-15

and some extra code into the build scripts to use this key for the
daily and weekly testing CD builds. Starting from the next daily build
tonight, this should happen automatically now.

-- 
Steve McIntyre, Cambridge, UK.st...@einval.com
Support the Campaign for Audiovisual Free Expression: http://www.eff.org/cafe/


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Re: Debian testing ISOs not GPG signed?

2014-03-09 Thread Steve McIntyre
On Sun, Mar 09, 2014 at 02:17:20PM +0100, Marcel `sdrfnord` McKinnon wrote:

I just wanted to reinstall my system on new hardware so I downloaded the 
current
Debian testing (http://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-cd/)
build. After downloading it, I wanted to verify the integrity of the ISO (as I
was used to from the stable builds). But I did not find a signed checksum file.
Are testing builds not signed?? Is there another way to check the integrity of
the testing ISOs?

We (I) don't sign any of the non-release builds on cdimage, no. Only
official stable and beta releases are signed, meaning that they've
undergone some manual verification and testing. It's a deliberate
policy not to sign the testing images, so as to avoid keeping PGP key
material on a remote server.

-- 
Steve McIntyre, Cambridge, UK.st...@einval.com
I can't ever sleep on planes ... call it irrational if you like, but I'm
 afraid I'll miss my stop -- Vivek Dasmohapatra


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Re: Debian testing ISOs not GPG signed?

2014-03-09 Thread Mattias Wadenstein

On Sun, 9 Mar 2014, Steve McIntyre wrote:


On Sun, Mar 09, 2014 at 02:17:20PM +0100, Marcel `sdrfnord` McKinnon wrote:


I just wanted to reinstall my system on new hardware so I downloaded the current
Debian testing (http://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-cd/)
build. After downloading it, I wanted to verify the integrity of the ISO (as I
was used to from the stable builds). But I did not find a signed checksum file.
Are testing builds not signed?? Is there another way to check the integrity of
the testing ISOs?


We (I) don't sign any of the non-release builds on cdimage, no. Only
official stable and beta releases are signed, meaning that they've
undergone some manual verification and testing. It's a deliberate
policy not to sign the testing images, so as to avoid keeping PGP key
material on a remote server.


It might be worth doing automatic signatures by a clearly labeled 
automatic signing key, just to reducing the risk of someone installing 
from a maliciously altered image. I do agree that the proper release 
signing is not doable for testing images though.


/Mattias Wadenstein


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Re: Debian testing ISOs not GPG signed?

2014-03-09 Thread Marcel `sdrfnord` McKinnon
On 09.03.2014 18:03, Mattias Wadenstein wrote:
 On Sun, 9 Mar 2014, Steve McIntyre wrote:
 
 On Sun, Mar 09, 2014 at 02:17:20PM +0100, Marcel `sdrfnord` McKinnon wrote:

 I just wanted to reinstall my system on new hardware so I downloaded the 
 current
 Debian testing 
 (http://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-cd/)
 build. After downloading it, I wanted to verify the integrity of the ISO 
 (as I
 was used to from the stable builds). But I did not find a signed checksum 
 file.
 Are testing builds not signed?? Is there another way to check the integrity 
 of
 the testing ISOs?

 We (I) don't sign any of the non-release builds on cdimage, no. Only
 official stable and beta releases are signed, meaning that they've
 undergone some manual verification and testing. It's a deliberate
 policy not to sign the testing images, so as to avoid keeping PGP key
 material on a remote server.
 
 It might be worth doing automatic signatures by a clearly labeled 
 automatic signing key, just to reducing the risk of someone installing 
 from a maliciously altered image.
Would be nice to see this. I guess that there are a lot of advanced users of
Debian who always install Debian testing on there workstation and no way to
check the integrity of those images is not such a good idea these days.
 I do agree that the proper release 
 signing is not doable for testing images though.
 
 /Mattias Wadenstein

-- 
Kind regards
Marcel `sdrfnord` McKinnon


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