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-moinmoin_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 09:19:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 34feff58412d7fb7db29c3bd9c2dca7c266adcfc * md5sum 95a78013b2386de3d072d335ae156015 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) iQEcBAABAgAGBQJSXloZAAoJEIXCXpWhbrlNmC4H/1LK39cQ/c37yL3YGmqO6dLV lrYF8j9M1fs/d6vwGpHlJfBoyS/mOlZP+9GCGIgQAgJwAS8tcjTRZ/+e90y3RyNs vtnhdpzCEPp395pzoWFFqgASiDwcJAamuGaObkKd2aKPCAtwZYxntJCpFXGKfti9 Kl1X7lZL2QFdrJ+1623bmQGfItZCcai+ELMDOTuUBJq0zYfdPdep+lTePyrmqFs1 PoUFDsam0/Pk3QtDFLqevx9F8mVbTKn68i7voY/NMvq8ATU9TOUcnsEP2ade2TtB Sit0mF2zH+k19IxkpKRkzeHRPZ3wAlH1IO7gnDAlvEKI2Qw5xTeLMSLcv/4AALA= =yM9k -----END PGP SIGNATURE-----