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-orangehrm-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 16:14:47 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum ccd6e99d77b5ee7cd69729e081e265ff6a532511 * md5sum 8d33a75e82f548f81d11d94f5db65b03 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) iQEcBAABAgAGBQJQM7PuAAoJEIXCXpWhbrlNBtAH/jJGddGxOq3guiZrG2/7/o8S 0/e1S0+5hzoyCfZ8ryyoxWmnOolZPnEjyq1V9yt+2kq8tBmcpRJQSzxZP9htjNnY g58sE4tlgUR70rSMzB7lispbLVd00+ivyOCt7NTL4d0h4jPQdpy25+O+qQloe1bV f5+/zjavJJXRi1Uaj36J8EDMCKjIrkekIszF+7SvZaZZjkUqwkFXYqO9yIUIbC8k ZAAwVb/DOeIsYVeq81dTESIPoOb6d1ve5BuQDXtIla8qkOBwBEGgGuiILG5Bnwl7 cV4QNFmtXtdrVSJP41lzeYL7HgIsH634IUgdpi26jyZL8ELRSzYDd5iq5oRntI4= =QPm0 -----END PGP SIGNATURE-----