-----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-observium-14.0-jessie-amd64-vmdk.zip.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-observium-14.0-jessie-amd64-vmdk.zip f2b525c5a1bdd549260ef5f57406338e $ sha1sum turnkey-observium-14.0-jessie-amd64-vmdk.zip a49a4483f717a11c5ba22bdec96566406f70e298 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdXAAoJEIXCXpWhbrlNSwEH/igRUfXqeqU2cKUwcaaUJtEf 2HkU1BrTIuj+zswxyczmhMV/ewfB8J1dwvu3n6TQkuimmzkiK8HUZQ/akUqurg9f 5r5eplrUE7ZvXLcxzePY7UXbWovWnBwHOqBUupbt8VEioTqNreKX24QbF1c+SVlJ 5ATvouaqPzzqvKYMCZInq/PlDvQ5FOcyAJdMNUnOfdVhZxGCe/n9yI1wWZ3go/dh 5huc0cjCYjKSSCCF0OF/3xiQj5D20/glhxdCyP2/wnwBFRbEPyi6OyYrcVf8IWjS /wGgZojEnirx5dtJOs8FeFNLnh0Z1FaJBu7+uFRGapJeDiEy+3kx1uTuqch0fMA= =PZIT -----END PGP SIGNATURE-----