-----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 debian-8-turnkey-tomcat-apache_14.0-1_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 debian-8-turnkey-tomcat-apache_14.0-1_amd64.ova a3976b71f0fda7ce907806f0acd555be $ sha1sum debian-8-turnkey-tomcat-apache_14.0-1_amd64.ova f1c6865ed2934dfc803a314525f160174f154796 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxWAAoJEIXCXpWhbrlNCZQH/RezB7YcCgnM8I0ex4BwugZB xQ77BwUoyaruPwHiJVwz1rwOUEM0jP96vA5wHmlkgEbPKNw/BIWoIEULSDLOfiB/ FmiIk1Vu6PX+HC/R8G2aa6oOlfxnji5mgldN3SoXKyBxdobHGSBhXrJOwOKryBZn O47ITSBuMLo/iMVDvYfhcD9hBuBFGGlx4HpogpH89+b1+MfxU/rq7wHlJSt5D5MW 7AN++GjANq+zHrKhLp5oKqA1qnQUTL5yulakJ8bIafagCe1FFmG46X90EJuNf5Ky df4HrM35rrDu0Dyx+qMztTxzILK6eY2Lm1GdV1RKMBYWd2MDxg0DWaTkXgZE6TY= =23Gw -----END PGP SIGNATURE-----