-----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.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-simplemachines-14.0-jessie-amd64.ova e86fd3a8b29430525de1db44e1fb106d $ sha1sum turnkey-simplemachines-14.0-jessie-amd64.ova f53a3d32b9dfcdb91be546129cccddba6ff20d15 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdZAAoJEIXCXpWhbrlNw44IAMqfXyJh5V1xbFuwdR424XLc hOiExdGGy/e6h3muAycMv7kd7PnUa9lzrF6dsMmuP3mTboe0oD6xL6pRU9lxuBRs H8vmgCiqKtKaZfC6UiCEREXSvGDb2DSrRAKqVJ9WQ1fFeXDBIuIEvwMuX47SLkja Zoj63lF3Y1/LnzZSLPBJ6Rb5ZNLrZ8yz2iPldGZfEgV595Jkqaf+VRKxcLr5SgUk gkRzvMdGGktNNopNHwpfSC0II62hGeZZ7gf8jtMKCCYphlJlAQkmACX1VK5MlQm4 bHHb9hgXtvd1DV8Gr7qFd1AiAUSsy7ejB+z3ptBcUBtUBOxkhd8+VgZLlVo29W0= =Rmwp -----END PGP SIGNATURE-----