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-sugarcrm-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:32:54 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 115fac539763c3d34bb74240f3bbb81530272140 * md5sum 355a2bcd8f2a2bf0a0227f82c931af37 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) iQEcBAABAgAGBQJQM7gqAAoJEIXCXpWhbrlNcxwH/1eOVcp0I3R4FIoMjQVxV7c6 Tv426Akzpt8kUsZaYQU9gKKAQZMDh9ZXQ2V2U3JnjQ+98ieE52s9Iyfws1S5eNCd K4Pij6F7it2lDj12lkSXtMgPq/hxwtnvbTPWm/yjDd8GAVk1TAAmDa+coql2t4JS w/xAoSMnqAuU5zTRdflS8ZrjRlT85zWTBxCYBCGGAnuBRHOyVUhaKpTsdBRmxUw/ n2mpo7G2kxb3Ey6GAzZV0kW/AEQF58fFzLq713CdEUvo6TC3tpff+gQZ4dCCHc+e pejajB8iG8O21epdcEWAgKWUhxFpXHYDy0cCi5NKK3tXW52GU55PslAXpj2DLq0= =2Jik -----END PGP SIGNATURE-----