-----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 debian-8-turnkey-twiki_14.0-1_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 debian-8-turnkey-twiki_14.0-1_amd64.ova 0a71a7e596e618263d175d492e93a06d $ sha1sum debian-8-turnkey-twiki_14.0-1_amd64.ova ca318cfec6676915c36b45030ce2384edbde73ce -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxXAAoJEIXCXpWhbrlNJ0gH/iEsAeHie3JYIvOrFEU0tXm2 Bs+TA0SdeHPvQkhP6bw3oA8ryqd5HCoQYox5GdD6soJlVrbscMos5gLU1u4AgtRc M0Pa8UB9ma35UgXj2AMfIRnVBD6GTCp7TfNv6z7ZUsmb53B+zWndfjvRo3x8emKg u2vEVpX3DG2Nrx6zdEyoTy9ZnoqOeKXiD10Qg8Q7yVPvIQDd5SJqawDxE8XQ5diL aaDUH6wPc1EpGesjMMi8b22vaRS4WO3Q0xMA+dbU014RzPcBsUsk6i/f81/GyJZv HkgLyEO2xAGcBo9en6mLTid2euK8dPV6NchY4PLasSXMoqK3uccWWTJ+0Mtx9eQ= =oHTZ -----END PGP SIGNATURE-----