-----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-phpbb-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-phpbb-14.1-jessie-amd64.ova 0db3cadce70e8a523e040f4c090e457c $ sha1sum turnkey-phpbb-14.1-jessie-amd64.ova 5971ce1f74f3cb04f7e99ae73677fb34b671a425 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlNbIsIAIr4/2D4xPC9hvalnKgutFWV +kf6LxdINEEW+qwBhGUthU8lbOLYQH/USFEbhIByih+xFOqjJdhzCReLX8OTQM6X zrsEIPPPWESmJGDzR4myQa9o7LqusFfq2kKdceRZlcuZhRweIkd/YynwLYBem7jt 7V8R53dE5U/DDe2XTKwlTfOI6S6UTZl9oZyWrfvMz8fOPasqGvvvLiWbb+OANqjQ BnbqzGCHn0yvz6znd3TwAdMO03EFsoxzAlgEj76aTfWAcX1w/kQ1fRsQASeV6nM8 znBL4mxKu0igoQ00Xp8jK0ihX9pABvmFvMr1E7WNGfwCcxMABSiOQ1A4W+YWrt4= =uxs0 -----END PGP SIGNATURE-----