-----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-b2evolution_14.1-1_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-b2evolution_14.1-1_amd64.tar.gz 74186d9eb93110ef586ea284f4fe2ec2 $ sha1sum debian-8-turnkey-b2evolution_14.1-1_amd64.tar.gz fcef261eccb005b2edcddf73b321b22a5e4571e5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnpAAoJEIXCXpWhbrlNOWgH/26U1hD6+Av+8wEIDPLsVEeM o5mHwoSBHYC7xGoJ5YjPT6B0wa1CJX8C9SrvzZjEP19iwZRB9E8vDvLFqeNNNHAb h0/kyatGDxaEBmM47JMq6RhoHB/lONEYWm5Q7w9CKElk5SXyE2CeJj4lqU2mmDIN Blu3OYGJISmiQf4u1fIdlWklwcjkwGleP29WT58f+w+a9BuL3Aw9uU+l6oUE41P0 ipUNebMpiUoktVmKEfkgbPxQiNUWrtGZoY8KZnDo2zWxM7wqwYLuDGNMLXv5n7eq pEaYBQ/VqrNWcVZpjRuRds/a5DZF3evzPfjKWqaX/H1TWipgFpuqK/m1ivEijmU= =PgQo -----END PGP SIGNATURE-----