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ssh-keygen -K option

 

 

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christophe at garault

Dec 10, 2011, 4:18 AM

Post #1 of 5 (715 views)
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ssh-keygen -K option

Hi there,

I'm in the process of generating a moduli file under Linux
with 5.9p1 version which in fact takes quite some time for
the big primes to be tested.

So I've checked both portable and current source code but am unable to
find the -K option wich is documented in the man page of OpenBSD site.
This option is supposed to add a checkpoint file when screening the
candidates with -T option which would be very helpful in my case.

Can someone give me a hint as of when this was added and where do I
get some patch for this option ? I've quickly checked this list and the
Changelog but can't figure when this option was added.

Thanks in advance.

Christophe Garault
Attachments: smime.p7s (5.24 KB)


peter at stuge

Dec 10, 2011, 5:37 AM

Post #2 of 5 (706 views)
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Re: ssh-keygen -K option [In reply to]

Christophe Garault wrote:
> So I've checked both portable and current source code but am unable to
> find the -K option wich is documented in the man page of OpenBSD site.
> This option is supposed to add a checkpoint file when screening the
> candidates with -T option which would be very helpful in my case.
>
> Can someone give me a hint as of when this was added and where do I
> get some patch for this option ? I've quickly checked this list and the
> Changelog but can't figure when this option was added.

Maybe it was added in the OpenBSD OpenSSH code and has not reached
-portable yet. I'm sure you porting it over would be very welcome.

You could verify this by looking up when it was introduced in OpenBSD.


//Peter


keisial at gmail

Dec 10, 2011, 6:31 AM

Post #3 of 5 (711 views)
Permalink
Re: ssh-keygen -K option [In reply to]

On 10/12/11 13:18, Christophe Garault wrote:
> Hi there,
>
> I'm in the process of generating a moduli file under Linux
> with 5.9p1 version which in fact takes quite some time for
> the big primes to be tested.
>
> So I've checked both portable and current source code but am
> unable to
> find the -K option wich is documented in the man page of OpenBSD site.
> This option is supposed to add a checkpoint file when screening the
> candidates with -T option which would be very helpful in my case.
>
> Can someone give me a hint as of when this was added and where do I
> get some patch for this option ? I've quickly checked this list and the
> Changelog but can't figure when this option was added.
>
> Thanks in advance.
>
> Christophe Garault

It was added in October, so it's not yet on any release.
http://anoncvs.mindrot.org/index.cgi/openssh/ssh-keygen.1?r1=1.103&r2=1.104
http://anoncvs.mindrot.org/index.cgi/openssh/ssh-keygen.c?r1=1.228&r2=1.229

You can try build ssh-keygen from a nightly snapshot:
http://www.mindrot.org/openssh_snap/

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openssh-unix-dev [at] mindrot
https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev


christophe at garault

Dec 10, 2011, 7:50 AM

Post #4 of 5 (699 views)
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Re: ssh-keygen -K option [In reply to]

Le 10/12/2011 14:37, Peter Stuge a écrit :
> Maybe it was added in the OpenBSD OpenSSH code and has not reached
> -portable yet. I'm sure you porting it over would be very welcome.
>
> You could verify this by looking up when it was introduced in OpenBSD.
Peter,

I must admit that I was naive enough to not imagine the OpenBSD version
could be different.

Here it is:
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/moduli.c.diff?r1=1.22;r2=1.23


Thanks.
Attachments: smime.p7s (5.24 KB)


christophe at garault

Dec 10, 2011, 7:52 AM

Post #5 of 5 (696 views)
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Re: ssh-keygen -K option [In reply to]

Le 10/12/2011 15:31, Ángel González a écrit :
>
> You can try build ssh-keygen from a nightly snapshot:
> http://www.mindrot.org/openssh_snap/
>
>
Exactly what I need, thanks a lot Ángel.

Nice w-e to yall.
Attachments: smime.p7s (5.24 KB)

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