-----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-mambo_14.0-1_amd64.tar.gz.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-mambo_14.0-1_amd64.tar.gz d8a8196d5e617b5c664cfec7ff1d43fe $ sha1sum debian-8-turnkey-mambo_14.0-1_amd64.tar.gz 3ef02862d6125f54a14bfbb611e29381b952e2e3 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxTAAoJEIXCXpWhbrlND0EH/i9YIFxcDQw2t15fUquYvdtg 4kmBPJebWWw6QXIfTcUhtDkMZZAI5jM48Gmng6hVzpDxU7yfCHchuIZXxjcYvxjW Ozp+kTCETcv90CbBwKkgToexvtcxLWJQNZQlasGMTje3XVE6x+tdIVGuTb2uNinE zmp3zDQSqJwxzVrY9PArcNVSDZa/Jrt8LlwgF0OUR491nyecIezYvRB22iLm9wEg 1gOrvC+vmiOhUutQFvImdgfIByxhZ3TyIGwD9Hwuoqb7cvKaNugPj0b0F57TN12L uGT0LjiLGr9MmjMPJ/AaYwdrxMtlGIf11eRey8uRGdFwjV4mEDatdE3L2mnM7Es= =UhlM -----END PGP SIGNATURE-----