-----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-gnusocial_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-gnusocial_14.0-1_amd64.ova 497866fab099837ca2878325f2c4c81a $ sha1sum debian-8-turnkey-gnusocial_14.0-1_amd64.ova 3ef2d427d5859810cc8357bd6d1b9c6ccf0b9fc2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxSAAoJEIXCXpWhbrlNNYMIALDdoCyvyDd1xLrN2ZsOutt1 IJp+DDMczy9lsNa3W0hRNBbYg4F0nuP24+0Zn61eWG1uhExYC/Hk55fPZXuwgP1g nn1b69QbNmcEzFhSxE0D5D9sC1SREmYeBZDJ/pPiWOI7G9LJORZa+M5zrmJurtbp FIchzvDAOxekWXjaA+is/NdDArW3UHVR4drGK2zKRgMMwK+TlOhA/oVV2VLBP2Ju vOLcBnqzZt1UrxvOjmZRmRAVMXt8p5mV0IBEI1/+NiL0wtxRRJ0/IC5UTUK93fkU A+9v19WTrnFVlGV5mEN/M4r7HpMdedPq3pJIRQ0uRr2H75xpQv8O6JOV8M6AOzM= =EHRa -----END PGP SIGNATURE-----