-----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-orangehrm-14.1-jessie-amd64.iso.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-orangehrm-14.1-jessie-amd64.iso b019f49b8d500fcf248610fba7cba021 $ sha1sum turnkey-orangehrm-14.1-jessie-amd64.iso d25ceaa82c8c80d7c1b9df101d315a9788a2625f -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPzAAoJEIXCXpWhbrlNLNgIAIu+ouwthbXWdQa2qPq196jL MWM+w2LnNSSWrptSDV6eM/M8UG13pMaDnbA4dswjdhRDHwDoj9ew3NT9FD4zi7Zs 3poVdGCzAfTylIvTvlgoTzpwWGGxjFF4jlbG26F8HZzOh1JwQMymR//HjJmtML+Z FawSCWUFUWlBYEUrnZiRmpuhzbzwY1FlEMRMEm158R8t41TAWhP2vWmg/7LPKBfe Zizurzy9AllMc4nIegtuPoKfbbnSeu8gBdPVzfY2wK/v3KdxqRzOB5OtlVAN7W6a 4ioUJdVT4Ah2XkkKoNs2oruY0qPUHRA3LQDuFUSrf+tVDbju7a3rkUkoYNnbcVk= =L2MX -----END PGP SIGNATURE-----