-----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-mahara-14.0-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-mahara-14.0-jessie-amd64.ova 65705e5a4aeaf63a40b4fac78e6f07e9 $ sha1sum turnkey-mahara-14.0-jessie-amd64.ova 14ba5599957cbfc2cda5639dbfbf12918c8fef83 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdXAAoJEIXCXpWhbrlN06YH/0MNTk3i+MR5lYTZJ0TujZVI mVSb2ZSvMyI+4R6D6nJwohh3S9pQ1d7/KqtvnA/G2ND9Lq66beBRmGz9w6wvzuq2 Vf9Bod3zfUvqwhLu4A/Xq0qXxbyMYWfszwSnF8a0mJV/yzif060J37qSLsc5DwJg 5l6Yr4yK412SkGsmClK0u47vsqPqVppoUXCghzh6LYxqDKqdGxRV59cTjoUmYu4B qZd/NBA1HsfKzT2HZoWWX+kuN9PTQN3knsboQ0csSeup6CCFpcGtfDWUVh10ICw7 1/N0g7mwfnR1gFR4oQGXaVWXCsHpt/3YmT0LNhVLNKQwQzKihoC+oNjNbkQa5qU= =U0rL -----END PGP SIGNATURE-----