-----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-owncloud_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-owncloud_14.0-1_amd64.tar.gz 670e4aa3c80be0702f967255f3d7517b $ sha1sum debian-8-turnkey-owncloud_14.0-1_amd64.tar.gz ab4ccb1d23bac6f9c8cfdbf140c6b7f386846cd6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxUAAoJEIXCXpWhbrlNiVUH/3mwJAD+0pOrvv/DRpcC8JQd fO8X2o2V3iyLEeDYz3LiNjbFeDrWLi+o+UrUPo05ozbS8Eo7y2Msw8vRoK9zQY4c BRAc7rSRJjELvRbyP8g4nB/t2//7OUWJ/R0i2iDz+Lj9FoO+nKDGZXZcmCMQsXbz uhhSONpsGDnvsG5JibxIvQWC87R3ihCzsbn6dYyhKwA4nKw4Y39cDXUF0UkDXBAq NYYvkaY04EZpAwOcdgYCiejRGe4yWOBdhtDt0U7a2q9AgAa50CLGhloxwqIhBlGI c9ZnV+UdLcWKEN/IJsaRuQiWue7GCnFroIDF/fWD5lkMsEd9mwkYSF2BHF0UC+8= =lWIL -----END PGP SIGNATURE-----