-----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-gnusocial_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-gnusocial_14.1-1_amd64.ova f23ac1afb6b916874d87b71f78802804 $ sha1sum debian-8-turnkey-gnusocial_14.1-1_amd64.ova d14f305e1a828830709721b9ce3d0bc7f05b7c2e -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnrAAoJEIXCXpWhbrlNcKUH/0QB4Bzgb33Ajq4Kkd5WabvO EfDKQhB1zvZEvj3t4e1VHHE3f/0PsvgIrhFmNVQ0vqe+arFyH2Fe/3qQc8ToMDJB ywnu6BghvXwcX+/DpQSQcftH54N9ocCBEyTOqmlDU5otHY7mbj6QTNYUSJwPTXXg jgcIf/iwAknqJTD4gcDX+/uUi9VMa3Gn1/90gCUgmYa2QfXzNaq/XQMMMmkQf83v IN7sUDKjh9NaR1iH6aJVBZqk7BDiNxrxEDj35xFV/xjI4TGeh6fNlTcoppf6AACs rzFcDsRCwNh6UhyABkSYfx+Boov9aTUYf3lxlS2mcGmgATkJ0bt/UpzzzhJ6v4o= =Jwib -----END PGP SIGNATURE-----