-----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-mediaserver-14.1-jessie-amd64-vmdk.zip.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-mediaserver-14.1-jessie-amd64-vmdk.zip 5bd995b8ae800b8b3130bb66f0ca06b6 $ sha1sum turnkey-mediaserver-14.1-jessie-amd64-vmdk.zip cb0321a0eb83df7ffab6853dd472fd2303b4c853 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlNchwIALjsmQhCSi6fmvLETCd6EgeQ G/dB52MdtsSb9UGKelEYy3/v0lZRTMDUV/AnKknFMyq2QYdcu7wzKHshEGz9nX2Z NO38EqWo1u9oHCj4ebsHZts/0cxTXeQEGNg1D/nPSlwCmgwJIn4mB/ZNb5IxjWPz Wl6lSse0XoO68+XkC0ItQcM9FPpNzvjfVi0vqvqCNb/rqNqZ+Vdpv/W/sWK6egEa MA98HjlItFyJQj/3nNB6Pq9ZXl59QUd8dhOFeayLbSeebt701XHy8HtmQ9cfyHz5 6+CpB7YZhVRE111TtWMyanSNM+BpPpqkwxmLM74Fod3n86I80MN3y8hmNpcdnNQ= =cmM1 -----END PGP SIGNATURE-----