This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-mahara-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:05:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 87d10397948d4018d341f463e7d691e8f5279173 * md5sum ac9ae5e528e645952ddf10b40121539e You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrfQoAAoJEIXCXpWhbrlNVWgIAL1mfvbxGu2V0BGS1Cy+ZIon L6shnaQK5PJZBJglZFlpIQIO3F/8UOGR7xj61TMfJ2EiFymg/rofqc4ewS1Xd21f BhSkNQaqeQc6r+h89vEXoRWUhoqS/0KBKSwBfQCCy1On8zQrJjhrHHbT0rkW7rlR eN09mm25K5HPoinJcAgt12KWJOlpusUnLSZcaAD7eolefP98GvTw/lz0qIYOs3/B 1Lie1fwZeiv9eB6fqrLW+jJsSoQy9DFjGhjo4paJFAzlIPRYlbsb5ec6KzBLcUCG TTj+RsLHl5RIX+fziqDlDyT4fxIrX95f9ZC6HR2nBuvPefXttGDMz4NVAanCtkU= =FQ3/ -----END PGP SIGNATURE-----