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-openldap_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 17:22:15 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4bf577ecb0fae8d6133fb814606f1da82675de8e * md5sum d8d86bb63690417cbe0b78f333b8f149 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) iQEcBAABAgAGBQJSXXnCAAoJEIXCXpWhbrlN8GQIAIHbvmHDD+rPuIKpBvw2SjAk 4j/2i0/E8nmmS3M1E+J603avLTxRaHpyygWvFqCjwEkbkc1shnFwSyDIkQygJqWv R8Q57FrxNzJtsmdzI92U1/tKvQCQ6mAM2uQgDIbuo5Ibxx0CtPTxNIv5nkJzGfos daWUmMfTze1NIrFMm1C0gbIMJH7zN2LPDMONlKpMFsCLCS98Zo/EFwdudG0TcMth wsMXM/T++gH4xa+ZWiFmqIMeYtMpS9T+cjbVDeWyvFFePPh37EP06qWI77kgSiJ6 vbDJYeEuDg0dh7rmPUUg+Flh8Rh9EcuqNdG2XtVXfkAJpk3jf7Bso+iDgRidvSU= =WfOO -----END PGP SIGNATURE-----