-----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-core-14.1-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-core-14.1-jessie-amd64-xen.tar.bz2 4785a41476d44989d0904db1028a5620 $ sha1sum turnkey-core-14.1-jessie-amd64-xen.tar.bz2 b77d8871eae6d77c28f706fda6a8c955aee30f8a -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnxAAoJEIXCXpWhbrlNnUIIANmqOjCYo6DxuXdHzfpr0UAo oYFybFoTD75acueASWP0FudZOGwMba7U+qjA0IMG7yJBCv70IOoDhH4eRO1U6ffr LF7aTfKbINqrsbqJCznPBHwbtfeBd0H+sD8tqMsMCKOFfihT0k4h0equWer8/SBn EL5nUiC0uG9tldfSl7QWcXZ1U3DdUD1raoO23rqnHTsu1TIMWovBt9gHP7mNjQ+X BGE6yUG/3CrCklE8qcV4WpJD4DtX4JNZWmWt02UvYRdt4G1wNeoqqARi7flBCx2H QnW3kGEF672lKcPGqitCCdyRK1lA5ewOYpXLsv1IR34gM1jqI/2V7rzV6LWGLIo= =GAEd -----END PGP SIGNATURE-----