-----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-zurmo-14.0-jessie-amd64-xen.tar.bz2.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-zurmo-14.0-jessie-amd64-xen.tar.bz2 7aa645e6d83592176f162a0094371cb7 $ sha1sum turnkey-zurmo-14.0-jessie-amd64-xen.tar.bz2 33930c8fdcfa92e01cd7da1b272f3a3fa0d04264 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiDAAoJEIXCXpWhbrlNRtcH/19HuNoo5VLvr7RyJh55K1Qg +a2dUIAcg+BdKsXi0lDVG5FyZ6KvopFQb/kKgzmPn5GyORnBZbclWaojAlpEWOxW +XKpKFRKhptQQOasbW/IjniNdPw7XDs8Y+CT5/sVaOyimXr8hPwXQ1wMVazfy8+C reXYBp7/ckAHgIIGrvn4phRnOUVj4QDVLZPl/oTc7Zg2A/rA1Ksgmsp27RMzIJ7X cfZTOc960jnBn+Bt2zHYglJsb7nHgPYSyIztqG2uoiQU9vsEzorrLCis5OList8U 3/a/rR7YCSkFh+0wUhrFIL3NuRRBCiPDkW0zJ7024UuWoPXff3hHBRuVb7uvL80= =xF3W -----END PGP SIGNATURE-----