-----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-roundup-14.0-jessie-amd64.ova.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-roundup-14.0-jessie-amd64.ova c21e242cdd154d70f9ab9f76f56761b0 $ sha1sum turnkey-roundup-14.0-jessie-amd64.ova 3c8c76c7375fcc22dcd14fb5bd32bc45849296be -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWVyWqAAoJEIXCXpWhbrlN4cUH+wZqNubZEh3aKzGNrHgnD9jh a05jrjiJTYmIVfsJm/Kmm8E1E5RUU2C+1kkHsYjUX4lsjxXgX6ixYv3LrOGKEPu1 U3J49PCrYwwxKjl4kveJqlyGRNHZivWxX3dZ2mOEGeTB5Itb0w4eyewiOt0Qcxy0 Jdzk7gFIspgUYb9ezbRMTFO/VNXN6aRY45BtTEv/3P9YaJgiaXdyNOpbzvQnJZAq sSkTqtiavBrFmRzM7tRMrbnO67Xj/atnk4HUo9x2jnZ4gOeQv0A5jXhxXRs5R/Hd u8K545MLnuDTQJyuWhwerNHMMyf5o0KaMf0mK1H0d5gYh1CRrH2os967tA2s5bY= =92Rc -----END PGP SIGNATURE-----