-----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-jenkins_14.0-1_amd64.ova.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-jenkins_14.0-1_amd64.ova b8ed0b1b9f5a7f125c02417446fd3415 $ sha1sum debian-8-turnkey-jenkins_14.0-1_amd64.ova d0e6f464eb9e81b3a144503ffe9698643d663479 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEbBAEBAgAGBQJWVyWlAAoJEIXCXpWhbrlNZ0sH90Skq9vhOgXWRT9xmTIW/hry 9uMJb5VyGvr4r/7pAOifYIBcBDXmJzG2sE1A+SEPsCab81FeUdxtymptQf5iwufn CWvomkS7kuyjcaqctiEKMwUsSsGNJF0HM0am7QdTJlYtttiA0akbRqBZjLb1XlXu NDpNCcQo8az8XGGy0vKFZUKcL1YWD22zWd32eWEYKSXSJV9ImzUdO6lurTbu7kLX YLyyNEvxuLymKWba+AlH5RkJrLOoiqk+E/3L/ma+m9iDaADUGEdl2fcbihT14x1o BUkrkQL/DL95Bq9LCBWGIjvKZM4ubb1DjV35oLxv/WY0id+Q4fYGHR2hUPwSvQ== =Es5n -----END PGP SIGNATURE-----