-----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-canvas-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-canvas-14.1-jessie-amd64-openstack.tar.gz 1cad53767e5b3c293aceb1cc31ee123c $ sha1sum turnkey-canvas-14.1-jessie-amd64-openstack.tar.gz c224defeee7a39be31b496f2b992092857dee013 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXRb5mAAoJEIXCXpWhbrlN7GAIAMW45nd6akB6qEezE55A4pvl Gd8jRpol5LmERsiHJjZXYcCK0zcRZZudlkj8+cDFadO4uJhTidD5bAgP2GB2sqyW X2ZHYEujK2OOtRYBFI8M805PNAOmocAw9dyIXRSGhOC8iKUnhWygIPsrfpQq+oyp CgTQDYgym7oW7dhdhajekXqWal9HAiS3XF/NwztVdhJYuaf5om6P8Z0OagLLZMwo tDRfizFZrCAtFAJerhBZrxVFvtAR3MePGUzux10Zb/FERmn0f77zM5lHg6TP9Jl+ quQ7LzRJrvAypFmx+SSS5+eDyLVia25BvT3fDmWLlwSsoORW5WaXQbeyXfS3ok0= =F9Wy -----END PGP SIGNATURE-----