-----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 debian-8-turnkey-codeigniter_14.1-1_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 debian-8-turnkey-codeigniter_14.1-1_amd64.ova d72c22ffeedbf72ae9cbd963a3bea327 $ sha1sum debian-8-turnkey-codeigniter_14.1-1_amd64.ova 93d218979d014a7a9d5b0c4fedddaefbdc8dc56d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnpAAoJEIXCXpWhbrlNI1QH/3iYTYYebBEw8IS74h6RXKaE g8QdTOwLG8q0xe5uBttJVOFK6VGXArYRDADx5rhdOKBoRg/GS7YY4C5gUWGQ1A9Q 4OxXN8C6/0b3DfeOzyRgBTrJZnQ9KXqzxRzyb2wWtwoM4t9H1IrpQG7cGQlwAZPy ZWxmuB2+p9LbZUHhY760ru/cawkMjNop/czGCc92QmRRkx0pHYkedOEDGJzhiztg FPOh336AY0CUuo5NunHngenGs3qDhnOLEBe7JxDj1CrXob4wVlqqSBga7HF8Ga12 gsM8asBgnlsrL0cVFZ+bMuR6kWaYzudfQg7unwHXGlaeiF9xrKjazRDGmFzulII= =NggF -----END PGP SIGNATURE-----