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-zurmo_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 20:33:23 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum db580320b3de427720a36d94649f534684d7d381 * md5sum b90b1e01960b732b97a4d8293929d477 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) iQEcBAABAgAGBQJSXaaLAAoJEIXCXpWhbrlNbycH/1jyaux4RRsWBVwdNXJ4UzB9 yL2RLAk8SDtGaQ1NvT7sDMqpbfPgve42MtDqnFRL1KauxPgZD3vjd4/ibpk/NKdG ew86q+cbLJP8QEgjvfC0uDf13z3DfyMa1PlnJPYSsqyLpvZ+G1xkM5yV3H+RqaRm voSdEXYnp8YoD6PGmG8o7AjOAG/Bt3wTzeEZRNonogET/gZU17WwYpaajiVjFIcG HKYN8bF3KzmxPTycu57jN2C+mBXnIlxfqRYET9rwoBlKTip03WAtazWpWlkSP5Cq 0e+HRqtLnBd88oYTQQeUn93YWR2P9B9D6ETYaaRnJjsYiVx4mHlB+nTcp4j7hMg= =XqIl -----END PGP SIGNATURE-----