-----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 debian-8-turnkey-zencart_14.0-1_amd64.tar.gz.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 debian-8-turnkey-zencart_14.0-1_amd64.tar.gz 422e8fc9e9c7d31ffac5a35b41a34a97 $ sha1sum debian-8-turnkey-zencart_14.0-1_amd64.tar.gz 8f34fc90cdc04d4e1bcc20664c97c1df7c4d29e6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxXAAoJEIXCXpWhbrlNqRgH/2vJLB5jm2/XqggyJlWawztB WCAHtfJ2X+EB+TCg5lbQVNHfwMfv9EuNMzzlRMjhIX4ZikT3mDjsm9jOVIFv4CDb 1mGqRewp0XmF6WaVXapk2kIJxF28/d235aEafi4tWC3jmmRli/XYz2jk/DUFalnH CRqcEVaYvL2cP39kD1TNOihI6r33UPs1X/MVMXsevBbPVnNi+YjK+yVYkYjHC36E vdIYLUo37uq4Is0iLpAuhQf22oHQKldeJ9oQlaqHMp2sAvi5IJr/7CkVRJBJ2LNh HSE6ooKNpi2Xriu+60xlYCOizpuMuajGX5pZ4qe1kpHhI1JyzM373FHmSwUEHFo= =NrKf -----END PGP SIGNATURE-----