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-xoops-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 17:07:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cc56786153a178ab74c77775afc5da9301cf5163 * md5sum 6fdab23265b9cf7cae8ccd352e39fc41 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) iQEcBAABAgAGBQJRrh6sAAoJEIXCXpWhbrlNDJsIAM0pS1D6gVBkiGs1ub5i5Qsp fgQ9//NhdSantmp1aPvqwmfXfcad8wLt8L0CSaAWC/0irePKLp0NMvZ50yVm7QtL b8BwG/B/phn5wXZaEia0TTVBMdfXPTkQCtJcGEbkriR9uhLBIjEiDMg2QJm9gXbJ uOjyV8+m/Af47/gI5Uf+YH96qizw7dRI0x48+kgcChSQZjhcuaIzokEhxn0erCnz uG7gK9wEJXxOxTLSkTspLEz4Rn6984OH+ekpDvOAKX/jWwA/FQsKUHxudsBufBvh v/n5HQiHBZ+lh3S2SALjzePaQelXzQbbPmWD8U0xtnTPM2Boyhk0QC3XiJyXhpQ= =5qih -----END PGP SIGNATURE-----