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 debian-7-turnkey-clipbucket_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 08:21:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0aba09fbe1b8e935a479ee0909da78e500119f4b * md5sum d85b6995ea3c50d1c26abcccc87805dc 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) iQEcBAABAgAGBQJSXkx7AAoJEIXCXpWhbrlNWtwIAM+zYtrmOw5lFYPcYoLRP9VB nMLXbh0tMCMBB/Mqqn6B+5byhxmvmWQ9oj+06IIApHi+FW4jxcJc4P4qfssOSCSN C0eleO5WTOFMv2g+DoqBogXsStM6O2TW8yy5LMmhiPL0CJM95ELyR+mAH120AvoY AHIiAEmCW37en1sBCDhlojpsgQ+TZbiOfTRMF8sD8WjUmYRZ+ndZnPsjwS1bY4Na paQauZOgA9BR4jyDkvn1w4VDs2Nhg94DZoapZVJwWZaZJhVElE5Q6VELRzowc8mC NjrECus4ue4nZ8fonGEuRp9i4/TcjOP/rFZd4tMxkgIne5VIAiNxtRhUhq5g7+A= =gNoJ -----END PGP SIGNATURE-----