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-redmine-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:44:47 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2cf80519fadd822c986fb913366b66a5871fdb58 * md5sum 8eb0c320cc219189fa06f1fe05abef30 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) iQEcBAABAgAGBQJSc3gBAAoJEIXCXpWhbrlNu1QIAOOUC1K0EWVoUTwIA7/EbUYW Xhqy5sOcV9R4PmdToWiB2xSwzEDCSWp3aSQAjY99a9XNsszkuL95fzriJosg+3ci FoPN6uPgP40xEaHpv87jgJdJ21oqd3yz8iPQzIAeksn/DSV9qQtk31fm3pJQTbBT 4fsSwjDHOEQ4OLd086e78cmPoK9XOJ0S7EX/2XuhQ/ZR0ztxiFeAxnurW9yfrS0m +knDLOUG6Fo9w3j1cjcTQpA+11JATVbNg7Axf2HjND2BsThWyzrwYMR+wZ9ES+Nr wbnbZaoSwByaPXY/9jO2g2zCXrJHa/ntofB68KhY5bOpFv1w7SFANl73d1w5FXI= =tNcj -----END PGP SIGNATURE-----