-----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-i386.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-i386.iso f58a1b7a62d36148a9505a103ffe4c0f $ sha1sum turnkey-ushahidi-14.1-jessie-i386.iso 57f5dac15f7bde273ac78ef10f0f84bfa27cfe86 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkP1AAoJEIXCXpWhbrlN1DUIAN7VdpWIqViXyi0L+yrhIaeR 1d0sC8nuPcQDFNDaF3OsKGzvDwUlh6PdjWPVTX/avWeCToSQYQ9GhOpZu/rffofF yO5CU5bRMW70NW/tPnrOCpmCf87nHGlSUPE5V39LsFm9aU1yu93nGWhhNZfhjS79 6pBxCz79OYCXsxYcDV6nqY4g2F0V06iJzaUMDaHFKgUGNWpc5FszU5GszMtJrt+F 8JwlFVPsXNhqykP72frc50NS1jphk0ngWEDntgHn1xa0WH8QXEXRPaOM+YeOLEvj pJUPkSkyH8ToqApAu9Rr1LbC01tphvBV1g1SJ+URaSsO4tQDn3yKxag4Sn+Q5XA= =Uhep -----END PGP SIGNATURE-----