-----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-simplemachines-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-simplemachines-14.0-jessie-amd64-vmdk.zip d444b2358cafbdb8511dcb32b3dc728b $ sha1sum turnkey-simplemachines-14.0-jessie-amd64-vmdk.zip 67ea1999bbf6a077f9a80e6722ad836cef4ffe3c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdZAAoJEIXCXpWhbrlN2PwH/jBh6ESuxxevzOup1MRlIroa TUAwhUY4WpNgdCICJf4+SPQ7kpPISOASTsmn2sc5fK8kvA7Shp4frpuIllfQubzy Fb3NxrHh9GBxw7XXt0OSn5EurYr5yv/p5N90T3csgaZpEb+faSisn8ZCtB46bQ4K VHF6jxUWRaKMCyi0KlI2kKx0IvHWdN6eT/hsqODNeR6pLArep7aNsgIkeldw6Jjm C0YMl7R3WIWF3eKxFv5YNi7oLX6sIhBp4lF0C8K12msBlT6Y+xrIDp3mhXWBA9qO IeushwrDEACwDagAZFtxctcFfrfMbDBQdru9kvbO0CNZTXsvBLPeii1c2+Wz8NM= =fJS9 -----END PGP SIGNATURE-----