-----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-wordpress-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-wordpress-14.0-jessie-amd64.iso 1dc449e5705e419fe745f408d2053440 $ sha1sum turnkey-wordpress-14.0-jessie-amd64.iso d4f1d1acc57d3ba1c9b2ba1d5a2f9eb8921a1cdb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BrrAAoJEIXCXpWhbrlNUr0IAOXpKVDxtoeNr6XIxSTvJ7fO /Wk2jVgPLhoa5Dq3LqqdW4g+OQ6i1TeC0Wnz7qMYePxuIdj9Ws61zuJBQ+uXs/TA p40aOtP3xfoQQmNS4huEzNF6pycwf1aa3YUShTYrhDgCQIctqnSNamMw/j8xKohQ vZEafx8sEak1cD3fo5UKmFbC4ySzvnkofN1vtI/icAzj1DdDOl9fmN8W/2oyxqhV HifdqR110U07iS9wCV5pCMwGf1KKTWxXdLeYFJ7eUqv8kl7OYDvSV/6LM0cfzyUk 9kwpmlynLm38dyqD/Mbn/MJO231NM5Y2WXevhwixkCcFLdTCNjMGmfWyunsl2bI= =A7Ph -----END PGP SIGNATURE-----