PGG default values (was: Re: PGG with multiple GnuPG keys)

[Simon Josefsson <jas@extundo.com>]

Simon Josefsson <jas@extundo.com> writes:

> My goal is that only very few people will need to configure PGG; the
> default behaviour should be Right.

Looking at my ~/.emacs I (only) have these two:

 '(pgg-encrypt-for-me t)
 '(pgg-passphrase-cache-expiry 12345678)

The defaults are nil and 16 respectively.

I think the first one should default to t.  Sending encrypted messages
and later discovering you can't read them yourself would be a bad
experience.  People that understands enough to worry about a default
setting of t will certainly be able to search for the variable in the
manual and disable it.  Opinions?

For the second one, I think 16 seconds is a rather pointless cache
(maybe only to fix the extra invocation of gpg for GCC).  But I don't
know what a good default would be.  An hour?  A workday?  Opinions?
As you can infer from my settings, I lean towards infinity, but
perhaps a more conservative setting should be used.

I suspect a good feature request at this point would be to add a
yes-or-no-p on whether to use a cached passphrase, but until someone
else mention I'll pretend I haven't thought about it. :-) If such a
query is added, having an infinite passphrase cache might make sense.