April 2006
Intermediate to advanced
208 pages
6h 28m
English
Content preview from PGP & GPG
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128 Chapter 9
Figure 9-1: PGP Messaging showing active security policies
Opportunistic Encryption
Opportunistic Encryption simply means “Use a key for a particular
recipient if you can find it.” If you receive email from a particu-
lar correspondent and your keyring has a public key for this
person, PGP will use that key to encrypt the message before
sending. However, if your keyring has no key for this person,
PGP will consult its keyservers for an appropriate key and use
it if found. (By default, PGP uses the PGP Global Directory
keyserver, which works perfectly for corresponding with any
PGP user and with OpenPGP users who have submitted their ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.