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-twiki_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 20:22:51 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e8c98da40fbd0575c29285f5c1e75d6a8aeba8d9 * md5sum 4e89fc46b960937d721ffc44ea739800 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) iQEcBAABAgAGBQJSXaQVAAoJEIXCXpWhbrlNpUIIAM6ovIjCTuVhPyloaLih4un/ dwd8nUixEgu0OuK/CTCCr8k13mi4ntQ19PwjypaTbjr8fDYDaNDe6Wo+t6FoXZyS L2JTOgpTJg4t+xuyo6YezIkYnKJg9aYbeMaElPVInaAdpmmCVhohdB9+yGx2Eh53 OsYqVd+FgPpS1e4mR9f07GFl3Rr1c/sYV+RohNCGo7b6qjEqvI3iyGzJ+0DbDRAc ehMKUcykNTKlVvpOwY0+OXm68fc9zoMYB2q5DG2ey1dUyoOnb1bPMXCUNRHXiDt7 Y+b3otyBpjbb0GZWoQglDH66IKnrqeocxTuAVNCtd5X++DPBo/zS0XWTlb6LfZU= =sfr0 -----END PGP SIGNATURE-----