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-tendenci-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:51:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c3afd752e79ba71bbfeaedbbaad6a56ff9a4ff73 * md5sum d961ae6451969ea4be132dd2c258c3fc 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSc3mjAAoJEIXCXpWhbrlNOcwH+gM4H+UGsUqqwvwGi5BEIQYH qgvzzpG8D/KRYnK0GmnQw0y1aeGHOuDLKx6bsyMeJ1CM4jbE89iKBo15emR7JoaZ XcgA8+bY56IFHcjV2kSt3QuDYWHJEnOhCLiFquKnjwS5G2wH02WLipqqZIjPOyHZ POZpNZvKhwzpFI0i4NEgszyMhX2OFU04WhVbTKAoUJRAhx3DtijHfxgiRN8USgLQ LdvkxxJ0L4x0oiAYJHC0pdqrCWMMDOAutuXF5ZRjwVNJ6P607HL1TITZD12FCqiG WMuolYDCuRFeVUb1DRZts1WddN/uAulzAtyQkGBQ/FhLF5Wt90AErWKIEgX67kw= =O0JX -----END PGP SIGNATURE-----