-----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-ansible-14.1-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-ansible-14.1-jessie-amd64.iso 58132a1a53d8a693fc731ff17affaab5 $ sha1sum turnkey-ansible-14.1-jessie-amd64.iso c15a456dee288a76bbab9c44026f39404ba95ef0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPlAAoJEIXCXpWhbrlNZlAH/RfZiBMZwuyA5p921Q1CtOyT QI39OPZZ4laj897+j1l7CjSYzhuxxEsdRlg/caq8pHm0RWq0zoVAzzx+qAN60+bg ZS/5P7lLs3JXCKIx+skqCEqPgOu3eBxSxM+CMx+L6B7IMpV1F+FdGm8AwdWKP4BA nRl7n8t9Gj9W+1DUgnccfQzKxP0MHik/40Xhr83Yfgd4v3O38zAnKYH4u0UW9iYH HUa9XVRKNAvm+W3nUvftLCG8alROBKzik65t7lTEulBeAKHHyM04J3YpNGPvi2Kx cVlXyfQFNMh8sWFQ/rTkMA5Pj+rOQUYUy9HV2aDNYp+TiuiaBHgO/amFGXVhOcs= =NnMZ -----END PGP SIGNATURE-----