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-tomatocart-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:40:42 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7dac8d099e6a3f9164eaed35582e8e6d5cb7a22b * md5sum 6ce4ee51dca410b9fbb7d6d6fd62bc96 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) iQEcBAABAgAGBQJSc3cSAAoJEIXCXpWhbrlNG58IAMS1D6agabKefF+7IMpByksO LUGfF52VCF5s49SbTjQlfnJRTfDLi3QUTUmbN3oOA8oW9TbLRsrrx4mQFiAs4R/i LMGtwX3TMVOUPInzQHaLYQjk/FZd9M74obSQMdq2zyEaPAUl+o6UorEOpcS6GJ11 nrL9JowqXfYC4NhzHga/fkvyF3OBHc+XHxicaxpCPtR29uESYusTLTXrp4d9bAtJ lG8Ex7ODM38VJsrBM/XLxmOB/G/yKL/bHN+tAAFUdnlWfWAGUR4KCIeSwwLeLwd9 NrFMb+/SRzOK3Nll9H0pKqnVwRpzkU2hEj+/MvupnzN3Amfk89RiYU6ZzLQHj48= =pRDM -----END PGP SIGNATURE-----