-----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-vtiger_14.1-1_amd64.ova.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-vtiger_14.1-1_amd64.ova 51cd6eb88edf383ea8c28c560a1d2110 $ sha1sum debian-8-turnkey-vtiger_14.1-1_amd64.ova 5c2cd12eea5680ff52f6e58f38048b0231932c59 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnvAAoJEIXCXpWhbrlNoRwIAIObx3IpCl0cCvxlTYPFMHAA OPU8ayoWOLdCpp1RPz6b2nGiXdZ6UJ2078qy1+yEC+T2vbNiVhMqDulozqIIRT3E BXgvs6tqb4kOO0NCvJEMUTlrcvQ480t9lBqQ4nEIQnlp/MBsxsfGEOITZxiw5TNc 7uBKY3OTAXrTJqAoVT0vgddKWZX4kT8QlWmPUWc91qvPfZM3qwYKyLQG6CEBvX/b Oa+VkbfaFJ3uI3XaPbh6Aiak90MLimipAgXH4XNtDTwJx+TXeKvWytcorD+Pk84y 3sks4vtRHpTgEJQDZyymwpb5xXfNtgD2Rc2NQqD73Tot8C4a7XO1EXDl8qx3+DY= =O41g -----END PGP SIGNATURE-----