-----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 debian-8-turnkey-sugarcrm_14.0-1_amd64.tar.gz.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 debian-8-turnkey-sugarcrm_14.0-1_amd64.tar.gz 84f590618730c3820aef7669921b8c7d $ sha1sum debian-8-turnkey-sugarcrm_14.0-1_amd64.tar.gz fe0887eef1bdbad36a0f7ab2928694fe4fa16742 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxWAAoJEIXCXpWhbrlNoiYH/0FDc4wDc3bYSU3SDPYRZXFc sG/ai0WmyGSaqrfEz41lWqo23o2R8nfPFJ6Qb6NWvZbuunt4H6/XlzZ5uu71fn6N W9oUGxlarvkeNHnZ+O1dDNVfmpRBdec5xg1ixAtlW1BUqhRsZKv8MuqUsCijpris 44NVoOauFNAZ+hxlftqJTsLdCxdDEtrFQzcc37Np92erotUeyneFeygslDI2pEpk YAeGzMLgMEgpUDO8kep1TdiOdHeMs0n3NBdevyJ6geYhmTVVklvQ1VfPKRncfa+J CmAknhyv0azg7RSLe4KRj9SCuSYRHK5FupekduOFZY82Ri3LCCNmODdi7Gynl3Q= =Y/pX -----END PGP SIGNATURE-----