-----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-mantis-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-mantis-14.1-jessie-amd64.ova e7908620273b864acb7aab1dc89cb712 $ sha1sum turnkey-mantis-14.1-jessie-amd64.ova 341951ae4f080d4d0f0aa840909cc1954c9bfbaa -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlNbIQH/0w6PogY+fezaPeCLxwV1IeP n4561YIPMakeeY0JpLfdCzT0OiQmGjXMYMlq01uySG8F9LrvZMaCE/Q4Mc7k1wbd Ok2ETl49NkypyVAUJnwjc6fZs02ouwiqh2Rp+gUasxMdzD1mFFPWebcgZ+fhBcZ5 Ee5CwnT5EzZgCqjc103OfLqUcWpsifweoySW4lWVpsidl2LW0DdLRK4EfAUhP3VF thRRPipRRJ50XzvPoez+zMl4vRHhLxBqUHA1Mrxh6tpdt3lgFFuM2XAXIDEeouOQ HVCsdc+eFHIMcLMT3kkOTzOOZlGqZs6FEJVOPOayKhZA0Gn8+moUl2t0KBHARkc= =sAj3 -----END PGP SIGNATURE-----