Re: Using TC Trustcenter.de certificates

2005-11-28 Thread Werner Koch
On Sun, 27 Nov 2005 11:32:03 +0100, Markus Plail said: > CA certificates into gpg, but I can't get my private/public key into > gpg. Originally I have a p12 certificate. Is it possible to extract the > keys in the needed format for gpg? A gpgsm --import foo.p12 should be all you need. Make s

Re: no-ask-cert-level, default-cert-level, and keysigning

2005-11-28 Thread Bob Proulx
David Shaw wrote: > Bob Proulx wrote: > > If a key has been signed with a default-cert-level of 0 is it possible > > to go back and edit the key signature and increase the level on a key? > > I could not find a way to do this. The best I could find was to > > delete the key plus signature and sign

Re: Using TC Trustcenter.de certificates

2005-11-28 Thread Markus Plail
Werner Koch <[EMAIL PROTECTED]> writes: > On Sun, 27 Nov 2005 11:32:03 +0100, Markus Plail said: > >> CA certificates into gpg, but I can't get my private/public key into >> gpg. Originally I have a p12 certificate. Is it possible to extract >> the keys in the needed format for gpg? > > A > > gpg

Forging fingerprints/KeyID?

2005-11-28 Thread Christoph Anton Mitterer
Hi. Somewhere (unfortunately I've lost the URL) I've read about forging fingerprints and/keyIDs (not sure) Meaning that an attacker could create a key (but as far as I remember with a different keysize onlz) that has the same fingerprint and/or keyID as another key. Is that true? Are the

--openpgp, MDC and similar flags

2005-11-28 Thread Christoph Anton Mitterer
Hi I've got some questions ;-) About the differences between what OpenPGP (RFC2440) specifies and what GnuPG does: 1) I've created my key with "openpgp" in the config file,... so everything should have been absolutely rfc2440 confomant, right? Ok, but: Command> showpref pub 4096R/5BB9A5

Re: Keytypes and changing them

2005-11-28 Thread Christoph Anton Mitterer
Hi :-) Ok,.. it took some time,.. but now I came back to that issue ... David Shaw wrote: On Wed, Nov 09, 2005 at 12:53:45AM +0100, Christoph Anton Mitterer wrote: Or is there perhaps another software that I could use for chaging the key usage flags (without damaging my key or changing the

Re: Keytypes and changing them

2005-11-28 Thread Christoph Anton Mitterer
David Shaw wrote: On Tue, Nov 08, 2005 at 11:41:43PM +0100, Christoph Anton Mitterer wrote: Ok,.. you told me that the disadvantage of C-only keys would be that you can't response to challenges. Is this the only reason? As far as I know a challenge/response is used by some users to verify t

Re: Forging fingerprints/KeyID?

2005-11-28 Thread David Shaw
On Tue, Nov 29, 2005 at 01:24:18AM +0100, Christoph Anton Mitterer wrote: > Hi. > > Somewhere (unfortunately I've lost the URL) I've read about forging > fingerprints and/keyIDs (not sure) > Meaning that an attacker could create a key (but as far as I remember > with a different keysize onlz

Re: Forging fingerprints/KeyID?

2005-11-28 Thread Christoph Anton Mitterer
Ah,.. tanks :-) So it sould be completely enough to verify Name/eMail and the Fingerprint when signing another key,... and I don't have to compare creation date/keysize/algorithm/etc., right? Best wishes, Chris. begin:vcard fn:Mitterer, Christoph Anton n:Mitterer;Christoph Anton org:Munich Uni

Re: trust path lookup on server

2005-11-28 Thread David Shaw
On Sat, Nov 26, 2005 at 12:56:16AM +0100, Jaap Eldering wrote: > Hi all, > > I was wondering whether the following feature does exist within gpg > or related programs: the possibility to check a signature via a > (longer) trust path from my key to the signer's key. > > I am no expert in the use o

Re: Keytypes and changing them

2005-11-28 Thread David Shaw
On Tue, Nov 29, 2005 at 04:08:06AM +0100, Christoph Anton Mitterer wrote: > If you look at professional CAs (e.g. DFN-PCA) they clearly state in > their Policies that e.g. they'll NEVER use their root keys for signing > data but only for signing keys (DFN does this with its root-PGP-keys for >

Re: Forging fingerprints/KeyID?

2005-11-28 Thread David Shaw
On Tue, Nov 29, 2005 at 01:24:18AM +0100, Christoph Anton Mitterer wrote: > Hi. > > Somewhere (unfortunately I've lost the URL) I've read about forging > fingerprints and/keyIDs (not sure) > Meaning that an attacker could create a key (but as far as I remember > with a different keysize onlz

Re: Forging fingerprints/KeyID?

2005-11-28 Thread David Shaw
On Tue, Nov 29, 2005 at 05:36:38AM +0100, Christoph Anton Mitterer wrote: > Ah,.. tanks :-) > So it sould be completely enough to verify Name/eMail and the > Fingerprint when signing another key,... and I don't have to compare > creation date/keysize/algorithm/etc., right? Not unless you're sign