-----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-ghost-14.1-jessie-amd64-openstack.tar.gz.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-ghost-14.1-jessie-amd64-openstack.tar.gz f826d5d0c016836eab264d28cd790b28 $ sha1sum turnkey-ghost-14.1-jessie-amd64-openstack.tar.gz 2963e4dd52ffcd70442301e51c42db38e35d05d3 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXRb5nAAoJEIXCXpWhbrlN5qkIAI0qD2HoYgWneE006QmBuR4u DKCHIEiVr2GPccOKLTO9YF3iVlnSmYUlb58BpueHsIEh7pHphnILEQnM7Onw+AGU 6SVsU4KMnwaoFYPYvaqP9uZ5G4NQD8CtmkO4JuvzE0gH1VPd6FABaTh8tWoWmmDH cCUYs6waU/QAzy1PC2lymNXsZcAnVlJmTZCbsGJCFIh/osglQOIWNBvu4bnaN+9C z9V+JbHwjlMydj7Em2qan3FpiMqPD6C5FbUQwjVFL0vrTjQLRLrno8H8hAJAiyzR D5w0Wmp44sO1EzEKNgoh9vm4l6wtZizO/dBSLmGzwb528UjTwLs7TywB13veZPE= =oWPp -----END PGP SIGNATURE-----