-----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-mysql-14.0-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-mysql-14.0-jessie-amd64.ova 92ea2172c7269aadf712f217cb25369f $ sha1sum turnkey-mysql-14.0-jessie-amd64.ova 126ebdc5a7d7e62321c658fa11abc5ddfbbd3a8c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdXAAoJEIXCXpWhbrlN8NQH/jQXaowHrphEetgagcrY7350 /s553oTjuv0F8kv0y+zpAsxS7VEOWDObCZJ/KYimPiN3zRX2IdV4Q37IenQq+p06 i1Q22QZyPCFiBUfv7rrnU++dIgRpzD3FPI1mZJPGB6R2BtQaCIbg6I9kcGlXO52m VCp7AzIwDm5jopQQs0NUnVoRBU7JKT4OamlVyLepJvVf+w79IFkyDdHQA8tV29PH pweOY+0zuzKldzem2kGEjYk5dxEJDj3GH6dJrdo8QmjSnJGSmrQ4Wjskz6cpyeNn ShEV2ZOfuWLiXX//90hlFw7DSm2P+Fe9ETViC5toxK5UJF7dT9VuQkaMCLD8oDs= =1KX7 -----END PGP SIGNATURE-----