This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --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-7-turnkey-statusnet_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 19:32:09 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ee230b7e4dce62a9bab275e2c44795c9abd4639a * md5sum 20d2c95cc65751e7dcd2853e1fe83fa0 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXZgxAAoJEIXCXpWhbrlN4K8IAKaePjU9+3hxAaVjNWqhy6mQ sHUDdv0NLcxueFH31NXAG7Pc3jc0PEmsKfNabfc/A48VOd3gn6YTNmfkDE/ptJRb bqEEaI4xU+4vAfwl8yivu/3kbhnIAN6y4p7Kv3Pi3h+BHyf1TTnUba81vncKYFzC v9NRs+WFMx5tNG+R0diEDZ18tmpdhTu5mlWL19CNXaUWNQhNdvlgDBRm+8RLDgeH reR5g2nUAqHTubN6PUkKbMpKI8Tbfpl0BmcZdrXqLY5bGz4Dq5zumSdBA5xRqwrf q+39CUcqNldKOzNyPY2D07d7H1ncKP2rv7uSOJFF6+HYVyGiL5ndBNA+0cijpSk= =hYmd -----END PGP SIGNATURE-----