-----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-phpbb-14.0-jessie-amd64-vmdk.zip.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-phpbb-14.0-jessie-amd64-vmdk.zip 1678b148f0de65f05522e0f7c018d66c $ sha1sum turnkey-phpbb-14.0-jessie-amd64-vmdk.zip 7feb0fd5939cf6b8177c53712fa2eb9ee7506243 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdYAAoJEIXCXpWhbrlNP5gIAJlVnPFp6oo0095Duqr5EIQC hnfzbkp9BEOkkvFitNnsEB3ePmIzEs2giKoo8XDmag+12A1NRmJFyVg7iI8wpNTw NlsLuXZx9ZvK4COcinroCIZ/7d/gKyH/fp3gTAZO/aYmvmmpFQbY6T9zVMA93QET kBoE4liDoMmYU+vL+GJxZL+PM9ChHDBlElBankgUm+9nhBFxCHARTjaGRxqFVSbs UQCz9/0VRTuR+7foXCmVLcRipXFxk385z3CMEbCax7e1a/io1DA/BuCKJIja5f9a kKzVvvbPtYBZIcpjWA7F/8m/D5pX19Nj04aVDwZxo1NdfjJ4gGI8U7eb2rvPtjM= =lJ1Z -----END PGP SIGNATURE-----