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-roundup-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Wed Jun 5 00:04:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum af4a2303488a89e0c50a311ff4862f13dea01cb3 * md5sum bfbba5702e7970d16bef4ab7b544d0bc 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) iQEcBAABAgAGBQJRroCNAAoJEIXCXpWhbrlNcJ0IAJvM8qAPnnAo+DdA5EJS1yu2 wgw6qOQXzGW97Adv++/WsJGEyqJ08z6ho/T3okq3v9WLWhuQBh0+f8uIrwQ/z+KS c8jqw53mPZVvT1GlAyveE7H2oZbwjb8eo1CxA93SI3QF6f7q+6mqtRWsUBMd4bvf 0XYyFQA23rAiGSi3OnuPCUvqu18hOK4GFTCllkuj249ymhDIa28QocI9EboYQiJn BRBBqixtEIme4m9icKNnPCtF15F+sIzsW+v1r8C4medkmbyuMBCmRLCYnurF/NV4 f4rb6pmU2puvLEGHxXzOAG3iZqke08tXnr0cHTkLe9eA4cZasaLIeIs4ONpcRyw= =K2xk -----END PGP SIGNATURE-----