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 turnkey-jenkins-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 16:14:09 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2d3c19871625fc447bcc22da8952d8202af16954 * md5sum 11a53869a46aa1c21cc1ebf3306a7bb6 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) iQEcBAABAgAGBQJSXWm/AAoJEIXCXpWhbrlNhowIALdsHRNU8WvJmpeAZzbC+A65 DOyLrmZhz9DxJ/dfYfceSWMYM658lxsj+3cm+XG+EL/nRGPn8kiPARvZyeRyaAuN GMbzHoqpCI8XXUN74htv04wOtfS/9edoVAineywsuOsfT4lV4yERiLgVy6Up2Tlk nKS4h47MA8rxKqkp3pFUSUMzwWMltneaKSRxPHEYxIMdMwqaItPUihDJIpmLUicr lWnaz09YkjJfYyRfhYhDxcdbnMDkdF0htoz58JfKSDG9iBCRuT0I+AI4fI4jd6Ts UQPs9jMWIbnMgN9wEG9OGrCNv3aEAcGLhrgdqoasgTWtugPUedVadj005Tp3Zys= =nG98 -----END PGP SIGNATURE-----