-----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-ushahidi-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-ushahidi-14.1-jessie-amd64.iso 34b81e13ea4112cbd1c0985ede70f747 $ sha1sum turnkey-ushahidi-14.1-jessie-amd64.iso 8368d9212d6cc8c9ad7fe855818868838422ad61 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkP1AAoJEIXCXpWhbrlNvJIH/2o1EtN7SfuO5eK2Gw8keStw P4225KU7HB1SE4ZDoK3n5Az1YHpfdtL5bHl09BG7Ak2m0raX6uCkIejpu7eEZQO+ sD4sfV+KC/swYhhuUiF7OfCCTtPjy5mnazBSH6c0B+TNRlgKczngjR/gnoi6oK0i L2DcBXsAgNYP52B9THDoYm2gd4FNckBJyJwd2z/EIP50P4eNCVIX1V6fabEP/DTZ COFsBcmZDOiO9LizYTigJ5yp/bLiAgUSLnqUmpW9rGtnU+7yMN7hn/9+O2XNbiLN QTgcdKnQJ41v8MMS59b7uoXIzpcgemEa1upr19INbk8IU3pSK2zhL38Q5aLAyMU= =rp2G -----END PGP SIGNATURE-----