Re: How trust works in gpg...

2008-04-15 Thread Peter Lewis
On Tuesday 15 April 2008 at 15:05:45 Sven Radde wrote: > Signing a new UID with the same key that was used to sign another UID > proves that the same person that created the first UID created the > second one. > It does not prove that the person controls (or, is identified by) the > second UID. > >

Re: How trust works in gpg...

2008-04-15 Thread Peter Lewis
On Tuesday 15 April 2008 at 14:11:48 Sven Radde wrote: > Stan Tobias schrieb: > > If a public key has a UID1, which I already > > trust, and a new UID2 is added, why can't I infer trust for the new uid? > > (...) > > So the > > only person that could have added UID2 is the one that is in control of

Re: How trust works in gpg...

2008-04-15 Thread Peter Lewis
On Tuesday 15 April 2008 at 12:39:43 Herbert Furting wrote: > gpg uses a so called trust modell (there ary actually several > different), where you can each UID/key an specific amount of trust. > You can give: > n Never trust this key. > m Marginall

Re: How trust works in gpg...

2008-04-15 Thread Peter Lewis
On Monday 14 April 2008 at 23:42:43 Herbert Furting wrote: > If the new UID just contains a new email address, you should really > check if the keyholder "controlls" that email address. > You can do so, by sending him an encrypted challenge. Ah, thanks, that makes sense. And then I can sign his ne

Re: How trust works in gpg...

2008-04-14 Thread Peter Lewis
Thanks Herbert, David, for the quick replies. On Monday 14 April 2008 at 22:50:46 Herbert Furting wrote: > Trust and signatures are different things (of course they are > connected). > > You can change the trust on the key with the "trust" command when > editing his key. Ah yes, thanks. So I have

How trust works in gpg...

2008-04-14 Thread Peter Lewis
Hi there, Firstly, apolgies if this is a simple query. I didn't get the answer though from reading the manual. My friend and I signed each others' keys last week. However, since then he has added another UID with his work email address to his key. This showed up in my keyring when I sync'ed wi