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 turnkey-mongodb-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 22:35:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5cde278067855841d7dfa2d6e6d9fe40efc828bc * md5sum ffe5e12dcfbb5129524702c00a70dcec 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrmunAAoJEIXCXpWhbrlNV5sH/0DptgaJzxdLbVwElJuRohAY qYnpu1JqqQMKR7j3Loj3TsI2VmrB9vH3ZWMT6jbIAc3eZfqGPn1h/1x4pk6DzECK XYb6Yc+Wn2QL9n9G7H4cP25xa/Mlom7EQzERIzDwO2QyYrjRK+5n2IzB9/XZj4SL RhVor/CadtG6YQWz1IqqtHiRpyZNs9ZcejAMKUtU1Pdo0ClG5DuteRoCGL4JVCLs pqsO1qdCbVD1XDMGQX//y+aOrqKsgDfCbHOaBU89Zc754So0uqAZVNtLwnYKpDLt Mq+Mx3WQA2/+m2eD9OP8Q8VFBArnp2nXpHGkdu+03AWppkRML+iEVb3v+pMzyKE= =HgQs -----END PGP SIGNATURE-----