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-tomcat-apache-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:42:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ca08c8fb33ff634a138c3c124b386bd3524107f1 * md5sum 9dc308d5582e6b8f0d5c7305bc55ac9c 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) iQEcBAABAgAGBQJSc3dhAAoJEIXCXpWhbrlN1xgH/iKuRj+fwOWiGKxy1vyl8cXd MVoU+wftFN9sWje/wzK0g/mcr3rmJiRcYFzJpALJg4gSvqeyP783Ue3801tPfF8A AMESebQjlXp3pR8KgM+MUjou+whGN6ABxfDFDvll2QZDL+0+g1yVwiDSvls5v8sB dCVsO93BKSv51g1YgEg+hUPWNYiMNFN2v9QMuWxqH44ZEwoW2zSNcp+kbg9SeYDw W5OJ/IXKmbS5loSziIL54pcaor0mjt22WKsK8IxRC8nESLtfJmpvuE2NMRMBMBC+ 6SLLCvlFiwVzYxPsZUwC2P9KJUu1CYkEK/c++CPnqD3KdN5QQf7uEMG/JhA7uBg= =fhRL -----END PGP SIGNATURE-----