-----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-oscommerce-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-oscommerce-14.1-jessie-amd64.ova bfa68238ad3a7f81afac4b71374b0ad4 $ sha1sum turnkey-oscommerce-14.1-jessie-amd64.ova d1e6a4b95e207e96654236cc0a9214b969052573 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlN8JwH/0XlBu88//bBDtyFyEGnAlHE nWeWi/OMgZUnK8VDX+WMh9y+NTQGSC6wmrHeMs7UgqJLSS/C22sDRvuonL7cg4hU IbaO7yFZLyrlNi8mqCcUrCXBh8zt3UAJoBnYs3q26t4FcnzIPeIVY0ervIymgKL9 EZwRANL5gNhYuq3yPuCKcx3S7uwAzWxBhD4CwOXyPlpqcjGiCVe3oVhKgXzKmV3m GxO6wdF9f5APy4wJkQnw+Ou2Q/37mFPRxn68UfPTj19k7ucmrLPyoUhdVSST3rVa kcCNMqOdo8G5h2PsdbFocfoEgnVbxGUrKl9uQa+hYmjBhIsen2zQXT55At5R6Uw= =sC+1 -----END PGP SIGNATURE-----