It is essential that you verify the integrity of the downloaded files using the PGP signatures. Please read Verifying Apache HTTP Server Releases for more information on why you should verify our releases.
The PGP signatures can be verified using PGP or GPG. First download the KEYS file as well as the .asc signature files for the relevant release packages. Make sure you get these files from the main distribution directory, rather than from a mirror. Then verify the signatures using
% pgpk -a KEYS % pgpv <file>.asc
% pgp -ka KEYS % pgp <file>.asc
% gpg --import KEYS % gpg --verify <file>.asc
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