What does key properties validity and trust 'None' mean???

[Samuel ]slund]

On Sat, Aug 19, 2006 at 08:30:26AM +0200, Bo Berglund wrote:
> We are new to GPG and we have used gpg4win 1.0.5 to install the
> programs on Windows XP Pro PC:s. Some years ago we used PGP 7, but now
> it turns out that we cannot get it to work on our XP-Pro PC:s so we
> are trying GPG instead.
> 
> But we are facing a problem when we keys and export our public keys.
> When we import the resulting ASC file from others into WinPT by
> drag-drop it looks like it succeeds, but when the key has reached the
> window we see that the validity and trust columns show up as None!
> 
> What can we do to change this? Our own keys are Ultimate both in trust
> and validity, yet the public keys seem to lose this, why?
> In one case I have validity=Full but trust=None and I don't know why
> this happened....
> 
> Can someone please explain what we are doing wrong here?
> Is there another step after generating a key pair or after exporting
> the public key to make it valid and trusted?
> Or is this done by the other side (the one importing the public key)?

If I read you correctly you are exporting Keys from PGP7 for use with 
GnuPG.  Since you have used PGP before I assume that you are familiar 
with the "web-of-trust". The owner trust on a key is not exported when 
you export the key, thus you have to assign it yourself and unless you 
have signed a key yourself no key will be truted unless you asign some
owner trust to the keys in the path to the key you want to use.

I hope this makes sence,
//Samuel