-----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-trac-14.0-jessie-amd64-vmdk.zip.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-trac-14.0-jessie-amd64-vmdk.zip 99d3419327b4f6c48607d48c77eec96d $ sha1sum turnkey-trac-14.0-jessie-amd64-vmdk.zip b3e102540166aac5dd008306902d1eb15d4f1b97 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWTDfJAAoJEIXCXpWhbrlNOmwIANqHxXJiAyf+BNUO8Qu+dJuk Vynq7380vqgUTvrIZ3I/5iA6RuQut7IKpuTVuWWxH8AKhcoWrMBw8+X6s7J/7seI FIvs3YdwKi17WpCbzS/vvI3u4lLkyVn0CEOmfZxJ4u5wKic1mNGmXGrBTO627SJx kZSnIiLu04edL9jYQyOsBVBWjBPKyLurz7M1j9O+h5zQF3qKZrEF+jQsauN5RSvz 83SNHSPGv/3YNIxkD81zKkVtRwL8S1/YMol589WjsN7Cq63tj64fJovEu7XI/cyY oftgCtIeJ0SacQnuPKJltOVu18RwVjC/fXwJ+IK1nhwuuB07LqL47LMFe2Hu5n4= =B5RU -----END PGP SIGNATURE-----