-----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-phplist-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-phplist-14.1-jessie-amd64.ova 53d3b78ffbb26b43aa2ca7d2ca67b77e $ sha1sum turnkey-phplist-14.1-jessie-amd64.ova 294eab83fbb18100d8d75b92251cf643a498b143 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn4AAoJEIXCXpWhbrlNbO4H/0qkFB2AcGLtIvHFOXjMNohb 7DY9WTP6VUXcm2+eTzbGWEnYrcg04/uYdHnKBPfloK/9sug7jUfXZCkOUwRPW7Yl 6YJIq2ZvNqMutcLk4pql0ORmFa6ISnTrSquGc6Qb4N9nEZE5+JJMI5dAVxuuEz/N xXUIYuVxxi0WYhTtZE5TZmLVkwMrwqy+jBQt/ZkKr12taK0IeLuoPcGVA0Sb6O27 nYA4M7R6HmnD2DCEwDivG4K1XR2cOoGYnSkNjF+EsC/ETry5n5AbLCgrFkDJHgzb zpWSxdvFW/rpyhaOJDrVatuh2I2bzB4SZhacS5B2WKnzGZ7y/uJgN3i3aN3ZXtc= =27ls -----END PGP SIGNATURE-----