-----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-revision-control-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-revision-control-14.1-jessie-i386.iso f3c2fc520aaa06ec0aadcd6b02181cdc $ sha1sum turnkey-revision-control-14.1-jessie-i386.iso 23785e6906e4df33c004ed210b3436c7b67fc264 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkP0AAoJEIXCXpWhbrlNhRYH/0bi8Pf6iq+hXUL3HELPsGd1 XwItU+TGNVPwh4+kHArbh0QknM+ZxNkkkiXoc1tsRcKF8OyW2lX9QunkKfPuft7m rK6W6TtDhRX0hkxGE/93stxm6iV5lV3CmHShig8Li+e0Ip7rZ/rfhURsQYrWOXS1 PmtV/ZsehGcvINgKviLkqZ4ijrExDP9trLk90yfA52KvRg/yT7HTJzQL5KcwifQx vlmTHtZ68UCNF10KJT8vlUoYQHwyw/DmfS/KxnYT1Jc6oeMNu8r2B2kqQurPIAq8 7OimPDvsSACinc3KkyneuBrOYOEoiGHR7pHP9chyBxQkn0rgOPaSPNGY5PZU+mM= =P/Ob -----END PGP SIGNATURE-----