-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-otrs-14.0-jessie-amd64-xen.tar.bz2.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-otrs-14.0-jessie-amd64-xen.tar.bz2 00c370e5bfc32a5a50cd0b9cf23e7c50 $ sha1sum turnkey-otrs-14.0-jessie-amd64-xen.tar.bz2 2ebc0ed1ff102d21f1dd982992232edda1127d95 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiBAAoJEIXCXpWhbrlNLjsIAKBfRw/uS7CQJrFzWFzOlQBC 8Ly9i69uDgy2gbbdFd4SmGRp/gaG+T+IAie5rtl9BM1y/dOC91NZtZnSEIOL7Pz4 jVAZl2y/qg4YFBKXQz5JiPJTQCORzCdTJQCsj/cAPwqbtbYOjgtd0nIWxHM9D1u7 Qcr9XReE5sYDQJqqQ91oeFjeVLjWecTrfaUyBro+FAvque+PqofXvH1PDIQwrVKJ 9nuGS2O0DR7KiDg1pGnIjKg6Nbh8FTZJ/02N+GE/YNLRtenJ4sIhxJWDB4J5uWne OO8eo/jamvj6eGJqi3TGnWb97PGLQsqleiJ5JGnMlbS0zLvtxgpyaPhx/z68YRE= =zGzi -----END PGP SIGNATURE-----