-----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-roundup-14.0-jessie-amd64.iso.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-roundup-14.0-jessie-amd64.iso acf1133f09d6005615b4284e824a7d23 $ sha1sum turnkey-roundup-14.0-jessie-amd64.iso 594c5134c77f2959ad43bf76450e38f1b7a3970b -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWVyWqAAoJEIXCXpWhbrlN0F0IAJ7mlt4IwN9Mo/ho0tIn97HS SG/n0qB52Pk8BfbP7YP3JtiFgq4GRmW8CP5WNZD0PHEpo4Is7R6YMTIVB6toajhp n88sUYX85wuwjeyKQuw4PDm5Lv+byfG8KS7ZA9jN5xA+VdG9w5mL9HgOfcH3iNUK UX8CdZHwDs/0lrLVFOd+Lc8XkApnZV5wnsordCznXEAj/4iwC3Ub70H/7fE3Efj+ UqnBG+aFlFQbdmlkjGqgJH1ZoCu6LDomClJxKiuPEaunt7rW1IwGnsAtyf/h4aXH /eWcLC8wRQJOOq1wEpPv2uyS4CJuTTVYK/hkqlo8CQJGozugpLGSGXCd6QjeUw0= =BXdu -----END PGP SIGNATURE-----