-----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-django-14.1-jessie-i386.iso.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-django-14.1-jessie-i386.iso 28a5810083a3b9a23bd3fd933b6b9c2e $ sha1sum turnkey-django-14.1-jessie-i386.iso 645764c91766d6c9218fc583691c94fe68573d7a -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPxAAoJEIXCXpWhbrlNBBYIAMFV8vCz7c5MCjIr+RiNwTA4 pu17OHxWCcd60PPMFCEK+Qd8IZOHTVjIDDCDiwI3n3+ma80fINutUyBiNCPZO0oH wWZWdVAaqJ9bvW0rn0Ld9rcSHd+wiOy0/TwkGJpZ4PLuuWNJKN+p1bah9DA+nQ4L vVutF4GZ+0utH5Nah8m1WB1nLk+Qh64GgxHPf2PlJKA5iNm0OR1OhTMzwv/w+U5+ cbkHYcCQOumt5K6nQxcQqqTSePC22TW2yCGm28YmXuFUlMMWJFkO3gAM2Sb26AI+ 2DUxVPqm/a7UtOrLP0GP65QVNTMaD+Os3vH+do7AKJNg9gwMc8fH9wKA0Ys4Oso= =Qvcd -----END PGP SIGNATURE-----