-----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-core-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-core-14.0-jessie-amd64.ova b85507d3f595356c9bca56f98c49adbc $ sha1sum turnkey-core-14.0-jessie-amd64.ova c3c3cf0506448130d4052538de3f96bb304f5da6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdVAAoJEIXCXpWhbrlN/q0H/2ob+jYC36JJPj4zURnNVnwD qwcEDotMaepD0u33wdLi+VcXKZCYProKm2A/35fj67HIUcnfqFeCUVrklqBJWMAP qSViOoPBxEhIAYfRBwBjVPPonF0TmNC5DQiEKLEYzY524jfotBpmj6eCqWCcQQwk V9bNuF2yY1O44Y+YRGAkCM3eF/W/DmENG9jridQjMWtrpBJzZFJoWm5n6ZRiMkUG tA3EcDgYvjiJL7g8n4Bq4TQpupu8xXHcG0aFVa7Wyv8Rk8kq+NT1+uZWa+ZJC2tB P1lKIoM+0ugz/g3oW9Zy8fZ1XZmMOQFrtbAGIIUsia9ho+Q+tUBcgtZF91nILbw= =xd6G -----END PGP SIGNATURE-----