Changing usage of master key

Resul Cetin Resul-Cetin at
Mon May 18 17:47:29 CEST 2009

On Monday 18 May 2009 16:46:02 Resul Cetin wrote:
> On Monday 18 May 2009 16:35:29 Christoph Anton Mitterer wrote:
> > In principle it is possible by issuing new self-sigs, but gnupg
> > doesn't support this AFAIK.
> I will look at the gnupg source code to try to find the correct section to
> manipulate the usage. But the info that it can be handled by a new self
> signature helps a lot. Now I know that it doesn't get ignored by the
> information stored on the key server. Thanks

Ok, it was quite easy to do (not clean, but it could be done in a fast and 
hackish way). Just searched for gnupg-1.4.9/g10/getkey.c:parse_key_usage and 
changed p to non-const and always set "(*p) &=~2;". Afterwards I started my 
new compiled hackish-gpg --edit-key and set the expire of my master key. After 
this procedure I had only the Cert flag set. Thanks Christoph - you are my 
personal hero of the day :)

	Resul Cetin

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