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-6-turnkey-vtiger_12.1-1_i386.tar.gz.sig gpg: Signature made Wed Jun 5 01:17:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 97d49866bab0310976404774db6e29d62ee80eae * md5sum 8cc48ab66642e323e39fc24bff862fc0 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrpGKAAoJEIXCXpWhbrlNdAUIANTcTNiby/ksskhquHB9f9al kCVfLtttMWgowLTKC6Flu5otmiRUjbOorNEGkeTCTCK+8zB1d8Bw8ht09nITCC3n 6+wrNfoTjVjtaemcHMRUWpeCyggmw0NJDOn83aKBXMBW+4zTUG3X2EzL9hnLYlSd VHug1CiWk7Dy6XltyjeWxKRh/gJOwZFPhLt1KFEENvbSrA5JTjFYA/+8hnZZTZbO O+nLSq1OjHl/tpcfFrnPi7xDgyK/HIM0+p+q0E+PMSYeMw+++OmhrpXfGlLJQclw FTxzC+X47R/PTMGuUcAcwftH0JgBEupzkyU6f/AzFPUXLj/D5Rlj73JTHxcBL3c= =nq1x -----END PGP SIGNATURE-----