@noindent
The @code{list-packages} command accesses the network, to retrieve the
-list of available packages from the package archive server. If the
+list of available packages from package archive servers. If the
network is unavailable, it falls back on the most recently retrieved
list.
guarantee that a package is not malicious, so you should still
exercise caution. Package archives should provide instructions
on how you can obtain their public key. One way is to download the
-key from a server such as @url{http://pgp.mit.edu/}.
+key from a server such as @url{https://pgp.mit.edu/}.
Use @kbd{M-x package-import-keyring} to import the key into Emacs.
Emacs stores package keys in the directory specified by the variable
@code{package-gnupghome-dir}, by default in the @file{gnupg}
their packages, you can add them to the list @code{package-unsigned-archives}.
For more information on cryptographic keys and signing,
-@pxref{Top,, Top, gnupg, The GNU Privacy Guard Manual}.
+@pxref{Top,, GnuPG, gnupg, The GNU Privacy Guard Manual}.
Emacs comes with an interface to GNU Privacy Guard,
@pxref{Top,, EasyPG, epa, Emacs EasyPG Assistant Manual}.