-----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-web2py-14.1-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-web2py-14.1-jessie-amd64.ova c55ad99ff91ef1a0fd6775ace82fee92 $ sha1sum turnkey-web2py-14.1-jessie-amd64.ova a40d6d8d8dd7293b58f86352502f625b2c7d33a7 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn8AAoJEIXCXpWhbrlNH8QIAMP6Er/P0Uk3e+xVZwbUKfjR Mp7OrsLJafAx4iZD5YIEq4CbQ/5jK6yyfQgvtaZBTUkhl3CDJdGj993RNp1IIdS+ HVAC0wdkwd2ZcDqwunaGM8gJ5BYyvWVvW/HsoRfXL10M823fMSZ4PeYU6JyxEbWc t1VHHjzmJfJ7t3FJNH4yWP/lJwFHx/uXn4edUgtnq+Tcm0RIPVA4R7/a6bVOXboG sPwWhLX4NtGiRko0Rg0HyOFNRkWh+mWPTodMEIdFEXbXYB+Img1V3WXrOgjGqa2Z M+aD4p0ynJ8F27W6k4FqFMfalJTPR+tQLR9Od1Va+lUXdb5KonxhH5MU27cJGLA= =jZob -----END PGP SIGNATURE-----