-----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-phplist-14.0-jessie-amd64-xen.tar.bz2.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-phplist-14.0-jessie-amd64-xen.tar.bz2 897a4ef3cb527be73a772acfa12c2500 $ sha1sum turnkey-phplist-14.0-jessie-amd64-xen.tar.bz2 526be2fe57244dc233695d6c72794f757b70f1f2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiCAAoJEIXCXpWhbrlN8ZIIAJ8tXrNTcwRRxJ/032hVXtAE Hr2/MImikzm8QXToufyqaOfQd5hBY7p8T4YbmpJaOKiWrVo3xjon+gw6VrM9mQoZ TBQsYbCcEpefioxOfKqgScqQU6DNR6V2hAaIzfkr8+CipTSt6SJ33QqwGo4T+qWZ jGFDODNZ3Uadn00rDbbapau7pJYAvEIkqjlUB/oqeMTRFx5vedOu4WclXTUaeNTN BrnEGWZs5my3twpSg4RH+bKk6o4la6r3vUHXgaFv06BDDwvceYIoGSgW2i6wZZuC pI77TGpAPtKlFYGRxLs176St/8s8mR1To9AtgK8Bi1xHOubfXkpXmD43X4c5cDI= =BZbz -----END PGP SIGNATURE-----