-----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-mattermost_14.1-1_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-mattermost_14.1-1_amd64.ova 73e3f2df80eac8c30c5a02b10e842a3e $ sha1sum debian-8-turnkey-mattermost_14.1-1_amd64.ova ba4fd13102deb40d8ea994517a1001b4b9541107 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXRb5mAAoJEIXCXpWhbrlNJY4H/2Ecw39t00ZyL68fdXzpWfov tnuaMT82iQdnc9zRDPcCtl5DdYfuQGS91f2Oacr/pVJqiKrFBMXYp5JwKOXqNWM2 vl7x+4dc0O/xIuoktVMVrSS4TcE+Xew366H8HQ3YjwIvrbv/y/ute+Gc+DX/1TfS zcQNPl8NQeB/3/dF2SD5BnJaHMohUlU4bbb6wuL/ftdV7fHmWkrBqpnjYUA1kHIO GaTFBtUs25NfVN3uWHYtQySGCzNqhFPWU/9QcS4ZEJDTgDPsqWAe0U+dkiYoBVZ+ 84n6RznP7LQiBq/Gtzm++t4s/lF31izlu8zwGrGRSBo/vMtnA39kgLrKgn4ewDY= =HwUH -----END PGP SIGNATURE-----