Verify the Integrity of Downloads

It is essential for security that you verify the integrity of the downloaded files using their PGP signatures or SHA-1 checksums.

Verifying PGP signatures using PGP or GPG

Download the brooklyn-gpg-public-key.asc file and the .asc PGP signature file for the relevant artefact.

(Make sure you get these files from the main Sonatype repository rather than from a mirror.)

Verify the signatures using one of the following commands:

pgpk -a brooklyn-gpg-public-key.asc
pgpv brooklyn-0.7.0-M1-dist.tar.gz.asc

pgp -ka brooklyn-gpg-public-key.asc
pgp brooklyn-0.7.0-M1-dist.zip.asc

gpg --import brooklyn-gpg-public-key.asc    
gpg --verify brooklyn-0.7.0-M1-dist.tar.gz.asc

You can also verify the SHA-1 checksum of the files.

A program called sha1 or sha1sum is included in most Linux distributions and OSx. For Windows users, fsum supports SHA-1.

Ensure the generated checksum string matches the contents of the .sha1 file for the relevant artefact (and again download from Sonatype repository, rather than from a mirror).