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-moinmoin_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 17:01:23 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 67d21f4558c06f0e6725c77bdc293aa55e41fa96 * md5sum 508336f523b36545d9a9ebe8c0b94a37 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) iQEcBAABAgAGBQJSXXTcAAoJEIXCXpWhbrlNDaIH/2Hcl9AW4YVvr/jNaAqjBbH5 gUeYW7/UUtbXipaj+MCK7sW2icYj0DhnRAr0WR+3NUk2sLiPbDVCs9Kw+9pMyOt0 veFZXRnkOWWAUpSNITMSAH+Ub17SoP3fuo7CwGYKSGXxjJXDl9BtWt2NXHPkIsyN ipmWt7pRIy6u+nnsy8D6XDTVic2RlBKeYmCQqRz5S1LEAbkz95QVGCxM9c8KXmki BlSDyGwKeCp1v0K61Yv3S9PneoGTjEuRCyoLzEheE6VJxnjz+rp0ZbTuD7GWGe1U DydiJSLViUNGvypqZS0ki92RJCdU5cYwGp4QDYABUYseQKnn5jqa3eBpjeNeyJM= =Z3Vu -----END PGP SIGNATURE-----