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 debian-6-turnkey-joomla25_12.1-1_amd64.tar.gz.sig gpg: Signature made Tue Jun 4 13:44:17 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a16e93072d19623989d9f2154ead67a12b2536a0 * md5sum b5433dfb59846d22e9ff2eab5d39d33b 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) iQEcBAABAgAGBQJRre8qAAoJEIXCXpWhbrlNaZQH/3ekrwERb6ge4EAkwvcXuLz3 lBzGXpE/6LDNqT/KMB4qioiQloBfO3dYRZr9lUos0UgHudjModpDR8k7naFgGZbX t6D1llSxMcL9DS77Ys9/0y11nCWwiI8T4eJP3rzmyQ+rpQXUuoP/kyWSXonwK7Ep FF43j/bQJXSSo1KzLraYiIHrRWnCgPYG4ewEMHGDeMzLUW03gNZ76UhWJEI41yoE umN9DHOl6NcOy8860riXJWsmbX2tcwAMY5itctBx/sfEWaGtEfiQpCyAZPmHws5R 3iEBS7mDkFOGiXVYDZA/yLBI6vcfhMyoLkdPK9Aosfg/J23ecMsJq4H1jbNqLTs= =Jc3X -----END PGP SIGNATURE-----