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-yiiframework-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 10:43:40 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d75f40e9121cfd69a4df1bc5943a0b10a26a7e62 * md5sum 90ee5d7edd5c910c5e21d2cd96647b45 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) iQEcBAABAgAGBQJSXm3SAAoJEIXCXpWhbrlNmjYIANl280VBN+QJEjBINWKopCm+ yIArsKLA4TBsOcHF+zq5MYTnToDE9cuuFEc2/llQbfOHsGKqxnnHUpuHiJQvS+ZP 2FkzGzt+TxA69U3m4zWIXyVvbC/6cbIf1LMTYzepMUgwFzxE9uVnzVQP05V8WuuK /n8Fnws6YzGcCQxZReW1my2w5Wn7EUok13xg4X0KhucFXFnT2cbAttlk0isgxbsf pCDmdZKvV8R+Gkasi0kas3PpoDglczLU2X9ZuuumTpBlWUPbBsdwO7ULaCA2uB1k A9YZNp8R3RG/TYIiOim4GToDyDv4j9E3cNWuzQ6HzIJfPn2PKo7dE8Nq9+k3J4c= =IkuN -----END PGP SIGNATURE-----