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-movabletype_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 09:25:54 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e59b1a12055cde38a3f3413137fcc4fb58eb9b5a * md5sum 06a9585f644799a7e38a232341aa511e 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) iQEcBAABAgAGBQJSXlubAAoJEIXCXpWhbrlNQT0H/3OzdqHcrfzHQmOmUr4Hze4X sEmDh2anYPbqu/vFA8wKUul+FytuT9otZhCdnGQTPpog2/JCIIhKiLYqa7tkiq2y C8x4t6UJG/LcPgsWLeJ70dSTqlQyb8JIhMNzvNqSDxk5Jlh9/uwRgIQDxuVXivQ9 yI3SmDkj6/4J/ZhJAhHJI3MljskOXyxomjOF3semRHN4JUUl3EWQPXlHE178mIGG 2E50C9lsznRsNGSuMj9ALxL1fdYJQjt4oAfKCJfg0k44qvPBk2ZOLS+psOFD9pD7 onx5H6eumOU9pmOi5h3BJaKNiXVwLakFW88fmD3Dl23jgh5ZzEXaqYz7Au8lm5s= =twgW -----END PGP SIGNATURE-----