-----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-silverstripe-14.1-jessie-amd64.ova.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-silverstripe-14.1-jessie-amd64.ova 8203915b7c6ff9fa783fa02b67f802df $ sha1sum turnkey-silverstripe-14.1-jessie-amd64.ova badd8322b4e51bf1856a98dcebab9ef0e7065b7d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn6AAoJEIXCXpWhbrlN0OYH/1sojObaOoUhE0qFnD7buaRp F21eU0pQOxrsB0o6wUmCeRcfqpUczkl/u2v3pZMYo+SSR4Hczw0Z3QKHMC5aQ6QP oHw017oq9cE2NdofbHYkGrB4oONYV8zZtWTeP2OfMxx+9CM9b6WvTO91kyhH00aK VRpPA4Twr8zbI0o683Ot4V/9fulNzz8eare8zDZopwtip4StR3x3g72YBm7F02K1 mezI5nI8osjR6R+eDUOfG3TBH0v7PfH2I4kmxV6MlrfEsm5mtCYpCRKk+SeFU42L S5aIUdE/zjI42O+h2lTLUZrr4YyAT732ulV20FzAXOaBfRNKeEw6CFstKqweHCQ= =tP0R -----END PGP SIGNATURE-----