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 bootstrap-jessie-amd64.tar.gz.sig gpg: Signature made Tue May 5 15:37:17 IDT 2015 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cec33aaae71dc369d4c55f65840a1bf7f6645612 * md5sum 67630e1a94e7b2f46bc5c64b946ee40e 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) iQEcBAABAgAGBQJVSLl8AAoJEIXCXpWhbrlNlHMH/0Qpb2C/ttxRVFk6jY35qyul zLU2hYiu4v/vfcdIbDaaL0ZTxIIpv2II9faWJ00VIloAe6RUMsxk02T13PT6k70D R4BGGo3fbX+uc64+Vs45ppVl2dmIGk5AVa5NBwgRN/Ph3ZYfmgSrrz01dmbzmzI4 kr6xLjNU6Oq6Y4KFr3awHVI4vbq4deVVC63s0LBNEv+wwe2FXScmVejgFUPAU/y6 0uT/CSi3C9seepi9uKULY+rPsEiBUGQn49kOYUxpMYlZ0pUhUhzfzbo53To/YbZr fm3vFBTWdngKpfMcwHleP+bvypfo0wtoT3PdFw6OEvTUPqM7z1Cd3W8eGV6vHBE= =dhOR -----END PGP SIGNATURE-----