-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-nginx-php-fastcgi-14.1-jessie-amd64-openstack.tar.gz.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-nginx-php-fastcgi-14.1-jessie-amd64-openstack.tar.gz 0e7314062eaefdf1b1028c6d438b0193 $ sha1sum turnkey-nginx-php-fastcgi-14.1-jessie-amd64-openstack.tar.gz 03ccd5626c35513b895d4f61120e2d126ed76548 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn2AAoJEIXCXpWhbrlNMnYIAIA0XIgEeaV4BVhA8n84lMHj V8lPK9n4GdBp3g7Hv2xRA3D1JbFGauudysghmHKf59wq8o7PXTAOXNbA825+153F FCPQ1L40Hhy48MH7GXYpuRV/JvDlT3hvfSyJJpuH8HwK5UxehDmgRr4gNpiigNQV YptWLVxTENDpf/78Z+sHPXBMSDM7vnz0xPdPJFpFJkA1cKxQmLGcdRCc5L/D8lcd NHjq0mhXJRLx281GTGtf+LqxxtvhX34cYvP+bV2B/8yjiGZP6C3EoFs002KVSgSx E9WRiEvgLA/I1pOVdtHebXRf27dKHE0YJHHIeW5iuC+W5YH3RNk3GOh+Mf6oeJs= =nfbJ -----END PGP SIGNATURE-----