-----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-mibew-14.1-jessie-i386.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-mibew-14.1-jessie-i386.iso bb00bb6274923c022c1e474e399f439a $ sha1sum turnkey-mibew-14.1-jessie-i386.iso aa1a37260b1859e2ee65c6491ecfd1d539c6ff95 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPyAAoJEIXCXpWhbrlNg7oIALVL2cXKstlS5velAS6pi5DC oGSGMdy0Tfie0wGmlxHjBLR3feAwfdoIc3kXrtv0aSoSi21pzhRYDzT1hXgMqkwW FWGXtBRmxEVV4mZRTvPRAhe5M8p8s0IPH3OGy/0H1Jg05L8tarSXqSHMtsi/Glom WVmev/+iqx4BcLszDha3ZW458YCqodmNYr6++shXXmM8H8xiVEZwIEBX4d+w17M3 0JiKBbQYUxStQDRJEvdRrZFOpA4lh7a4bayA1IhCcfrmA9EK4Kppq548vqKSS0vw b1AJjOUpkBI9FA7LokKtXSKObHgIHIn7zBiu03hn/NAE+MAFeUQNd4pC8IHGdac= =AR3B -----END PGP SIGNATURE-----