-----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-zencart-14.0-jessie-amd64.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-zencart-14.0-jessie-amd64.iso c9a4b51cdc22843adae79d5a0005ae9f $ sha1sum turnkey-zencart-14.0-jessie-amd64.iso ee6eb262015e5535185760dc6b0a3a087fd9c446 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BrrAAoJEIXCXpWhbrlNkmcH/3kzYy1Y15JQpe8VOuQasrSG WGNZH9xULmq2HhMjU8PYMEC+lwiZzHfVhJHJ7RfMXdVh6izMaaFvM1dAbYCTR+40 iQ8oL+P2/j7OZOM/vdMYqrLYb6uZaAScFD4pTeGC88gXigOKMZDQdhYAvi65WWw2 nSKT5MXkkv8pVAV2f+y3taq31Fpf29kR+ZsFl6CXyi4fypa/CDPs6Rg8cXEYHgja tzjuCcK+Q6cWqxkt1yF+9xUrGaSPpkzlDLSm880CtcfV1wZl+6dLzCB2JBjrcR5T zMhtwBg8kgMTtjUZDfIr+vhyFLRdkcbOIC+krnp3CtHP04uT38Yk3ukKHFNns80= =qFOo -----END PGP SIGNATURE-----