Re: verify debian12 signature

2024-06-14 Thread Andrew M.A. Cater
On Fri, Jun 14, 2024 at 09:40:03PM +0200, Franco Martelli wrote:
> On 14/06/24 at 17:26, Juan Manuel . wrote:
> > I'm sorry but it's complicated. Do you know anyone who can remotely
> > connect with me to guide me?

Existe tambien la lista de correos debian-user-spanish

https://lists.debian.org/debian-user-spanish/2024/06/threads.html

y el sitio Debian en castellano.

https://www.debian.org/index.es.html

Andy

[Pointing to Debian user spanish and Debian site in Spanish

(and top posting for speed and because the poster is using gmail).

> > 
> > *De:* Franco Martelli 
> > *Enviado:* jueves, 13 de junio de 2024 19:19
> > *Para:* debian-cd@lists.debian.org 
> > *Cc:* juanmanue...@hotmail.com 
> > *Asunto:* Re: verify debian12 signature
> > On 13/06/24 at 08:54, Thomas Schmitt wrote:
> > > Then i'd compute the SHA256 of the .iso file
> > >     sha256sum debian-12.5.0-amd64-netinst.iso
> > > and compare it with the checksum string which is listed for the .iso file
> > > in SHA256SUMS.
> > 
> > The comparison can be done directly by "sha256sum" command using the
> > "-c" option. Download both .iso and SHA256SUMS files in the same
> > directory then use this command:
> > 
> > ~$ sha256sum --ignore-missing -c SHA256SUMS
> > debian-12.5.0-amd64-DVD-1.iso: OK
> > 
> > Cheers,
> 
> No, of course I don't know anyone who can help you.
> However if you aren't comfortable with the CLI (Command Line Interface) and
> you want to install Debian on your PC then you need a friend that already
> did that *or* you need a book to start with.
> 
> You can find a friend looking for a LUG (Linux User Group) near to the town
> where you live. e.g. in Google search for: "linux user group Spain" or
> "linux user group Madrid"
> 
> You can read this book:
> https://lescahiersdudebutant.arpinux.org/bookworm-en/
> 
> or if you like to go further, this:
> https://debian-handbook.info/browse/stable/index.html
> 
> There are also the on-line Debian's docs suitable for beginners:
> https://www.debian.org/doc/
> 
> Good luck!
> 
> -- 
> Franco Martelli
> 



Re: verify debian12 signature

2024-06-14 Thread Franco Martelli

On 14/06/24 at 17:26, Juan Manuel . wrote:
I'm sorry but it's complicated. Do you know anyone who can remotely 
connect with me to guide me?


*De:* Franco Martelli 
*Enviado:* jueves, 13 de junio de 2024 19:19
*Para:* debian-cd@lists.debian.org 
*Cc:* juanmanue...@hotmail.com 
*Asunto:* Re: verify debian12 signature
On 13/06/24 at 08:54, Thomas Schmitt wrote:

Then i'd compute the SHA256 of the .iso file
    sha256sum debian-12.5.0-amd64-netinst.iso
and compare it with the checksum string which is listed for the .iso file
in SHA256SUMS.


The comparison can be done directly by "sha256sum" command using the
"-c" option. Download both .iso and SHA256SUMS files in the same
directory then use this command:

~$ sha256sum --ignore-missing -c SHA256SUMS
debian-12.5.0-amd64-DVD-1.iso: OK

Cheers,


No, of course I don't know anyone who can help you.
However if you aren't comfortable with the CLI (Command Line Interface) 
and you want to install Debian on your PC then you need a friend that 
already did that *or* you need a book to start with.


You can find a friend looking for a LUG (Linux User Group) near to the 
town where you live. e.g. in Google search for: "linux user group Spain" 
or "linux user group Madrid"


You can read this book:
https://lescahiersdudebutant.arpinux.org/bookworm-en/

or if you like to go further, this:
https://debian-handbook.info/browse/stable/index.html

There are also the on-line Debian's docs suitable for beginners:
https://www.debian.org/doc/

Good luck!

--
Franco Martelli



Re: verify debian12 signature

2024-06-13 Thread Franco Martelli

On 13/06/24 at 08:54, Thomas Schmitt wrote:

Then i'd compute the SHA256 of the .iso file
   sha256sum debian-12.5.0-amd64-netinst.iso
and compare it with the checksum string which is listed for the .iso file
in SHA256SUMS.


The comparison can be done directly by "sha256sum" command using the 
"-c" option. Download both .iso and SHA256SUMS files in the same 
directory then use this command:


~$ sha256sum --ignore-missing -c SHA256SUMS
debian-12.5.0-amd64-DVD-1.iso: OK

Cheers,
--
Franco Martelli



Re: verify debian12 signature

2024-06-12 Thread Thomas Schmitt
Hi,

Juan Manuel wrote:
> I have downloaded the latest version of debian12. I
> have the GNU4win program with kleopatra  but I don't know how to check the
> digital signature.

Do i get it right that you have an MS-Windows system ?
(And that by "GNU4win" you mean "GPG4win" ?)

If so, you need a program to compute a SHA256 or SHA512 checksum from
the downloaded .iso file and a program to verify the corresponding
SHA*SUMS file by its SHA*SUMS.sign file.

I'm not a user of MS-Windows, so i cannot recommend any software for those
tasks. If no other way would be to see, i'd consider to install WSL
and to do the verification by its help.
  https://wiki.debian.org/InstallingDebianOn/Microsoft/Windows/SubsystemForLinux

In a Debian provided shell i would then do:
  gpg --verify SHA256SUMS.sign SHA256SUMS
which should yield one of the key fingerprints as listed on
  https://www.debian.org/CD/verify
Important will be these result statements:
  "Good signature from" ... "Debian" ...
  "Primary key fingerprint:" ... one of the listed fingerprints ...

Then i'd compute the SHA256 of the .iso file
  sha256sum debian-12.5.0-amd64-netinst.iso
and compare it with the checksum string which is listed for the .iso file
in SHA256SUMS.


Alternative ideas:

Maybe you can perform the .sign check similar to what
  
https://docs.oracle.com/cd/E17952_01/mysql-5.7-en/checking-gpg-signature-windows.html
proposes for "mysql-installer-community-5.7.44.msi" as payload file
(yours would be SHA256SUMS) and "mysql-installer-community-5.7.44.msi.asc"
as detached signature file (yours: SHA256SUMS.sign).

This page
  https://3d-imaging.co.uk/blog/verifying-sig-files-with-gpgp4win/
states that GPG4win would offer the command line tool to run
  gpg --verify gpg4win*.exe.sig gpg4win*.exe
(You'd just use file names SHA256SUMS.sign SHA256SUMS instead.)

As for computing the SHA256 sum of the .iso, i find on
  
https://www.pctipp.ch/praxis/windows-10/windows-10-sha256-hash-bordmitteln-pruefen-2507915.html
a proposal for PowerShell, which in your case would look like:
  Get-Filehash debian-12.5.0-amd64-netinst.iso -Algorithm SHA256


Have a nice day :)

Thomas



verify debian12 signature

2024-06-12 Thread Juan Manuel .
Hello my Name Is Juan. I have downloaded the latest version of debian12. I have 
the GNU4win program with kleopatra but I don't know how to check the digital 
signature. I have tried everything, I have watched videos, I have read the 
official documentation, but it is very complicated to understand. You can help?
Thank you