-----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-mambo-14.1-jessie-amd64-xen.tar.bz2.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-mambo-14.1-jessie-amd64-xen.tar.bz2 6dcbefc69f8ad040b93b569b42e410b6 $ sha1sum turnkey-mambo-14.1-jessie-amd64-xen.tar.bz2 a6ee0983f04199dc05e8b5a7a2901e5e3bb66e31 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlN79QH+wdZhNMcTgqbluAW70M1tD2L vTVfkqvkZqqRuQIlBO/4stfcMb6o/gtlnbq7SmpkTqyh/p8w1U+1dD5gnRShRFH6 aSNGifHfnMB0j9ptoV+0WX95v0cy6sDKs2PpKq/XwUy4TKOPpW2maJ1L6Xb9UaRB 9H/agQtXch1DY67BH26jlplNKrTce8Py9fbcvFi57teV5cSNmfYC2BwsxajpYkwJ t4TVqvtXG0wapy1NQUhUFm+EpcbxeHB4gbFYK60GyNjpzD/GwVjh6uxYVWcc3YFh qiKhm+2m78UaTBg2ClAY+UHqbOI20IZ271Lt79cVyCMCdRVM59Oxas5TFvYFRB0= =dL0S -----END PGP SIGNATURE-----