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-couchdb-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 20:25:15 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dd060bb705cb6ef7d75bf03a7a82fb6f7ed2f69a * md5sum 100cb51c2c56893ded04a7c7867adfaf 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) iQEcBAABAgAGBQJRrk0cAAoJEIXCXpWhbrlNGVwIAIcZVTmhgzH2H+LsG6HQSqdl spTPjRLc15NuewDoMXu66vGOK2LZp6GQ27HURs/1x/oWE+Sk7ldTFoLCC4EQvTnI mEOyNNkwoFCvR6tmz4qmEoKFtYs9xfug2ggBeDr+Moqn0kXeyOSfc4/5Zjc69jXE S2Ixaf0ECEaBP0Gddd/g7GlClnJ2eQcjYLBO6YJvA//TruGVKdHj6gRTu7UUuxri ZwiJ7DBa0udnVnkdHga+yUjAl7biOanAiTJTSmsZZ1ooTGLbYCFkqckzXFNpjMQs sjDf22tMGc+pbWd3Dty0fwexGn/lSptiX23NpsqxMdTx13jrnFLzx4ueIg6KFo4= =UVl3 -----END PGP SIGNATURE-----