-----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-zurmo-14.0-jessie-amd64-vmdk.zip.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-zurmo-14.0-jessie-amd64-vmdk.zip c2bee09f693bba3cef4d1d842aa3d76c $ sha1sum turnkey-zurmo-14.0-jessie-amd64-vmdk.zip c379a1a00790b7537330178efb614c346750864c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdbAAoJEIXCXpWhbrlNLjgH/iCFxrQ0Xob70AKeX48dgW9B f7Qhx56isUbbyP0lrQhyGMzSbY9k4MSm0HQgbt1/7ro/GmVSVabwVRl2kDOko0b4 Lk8qVU1wOUL5SwqrinStHD+58FEH6ES+Vfcmi7z3yPcJ6XRS3mjP4NFDQJRETkP6 wFpor03yZY3j+xJ3/XRnF+05rbkoB60DXd3jHNJleSrYWHC1B2LHAXIlMVPuHyh5 TnUX0Co/6zJuINDnmkjj+UadGg/w0NcFMy14nbH6vXAS/kjNJ2yjrlSzvZvkZHyv jwtDCAa8Xx7vKFw/vJKEfoZaHNSKUdw03ZOqVSU4tt7xoDJTGiVeyK+4cqVxTuc= =nR2i -----END PGP SIGNATURE-----