-----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-web2py-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-web2py-14.0-jessie-amd64-vmdk.zip 5a553dc6861a5e770eed7996e36799d9 $ sha1sum turnkey-web2py-14.0-jessie-amd64-vmdk.zip 315bdc7a52d97186e009da81c04425b8c217317c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdaAAoJEIXCXpWhbrlNVJsIAJCyUNxSO501Pw8T1vuR/Vjp snCzt0YYF36IXVdfnNJprIMrDcLSLIRoabQGGWE7KEVNIeSTy4c0nRd8Qti/bQtl ABVRS6JZjq7l6Xf0JoDQTZd/GUYQUgRqmzaS2h2trIXoU2Z2Gpa6oQiqnYhhT7xs vKDWZBu7W2zTXYe8y54aPUWaUANEoR+boAjp228qIxc5vU8S3VeFvG8ANGDbgwc2 dgBQ4X80PnO9G28s0oGuHRv5Z+r/Wpa/oD1Sj68iX42WQH76hWDkmB7WtcNz172h uxXNCi7gQjX5k/Aw8kMH2YBvoHxWkO8GtCBcfpAirFOEFUE2zWg20OD5GBOgt30= =SQ6n -----END PGP SIGNATURE-----