-----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-lapp_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-lapp_14.1-1_amd64.tar.gz 770795462fbaa33bccd927ba4f13e5f0 $ sha1sum debian-8-turnkey-lapp_14.1-1_amd64.tar.gz 8525b3cd5b1c3b045fc8e03f5fcefcf39d86e123 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnrAAoJEIXCXpWhbrlNiyMH/0oUyiafyTxUfH/UYU8/qp1w 3OeaF/QnF6NDJ072poEHqFuV62xtfbBzgfZTfm3XtyE7oVBRMO0mNc7zm/0crWoK mna9EmHBdnhNf79CRyery/VBopG5EmvsX5vo++OV2zBI9mNLCW/RNCFnO2rlcXE4 kQAtyClBh7aDGASv5Sp1no0cbYBuUuhqRmP+YaHtGFQBLB0Pl5roGP5bjIi3Ak85 5Imb7UoJeg9PRiGi280o++srIahza1MBkkME5U2FhdE6U+v4EdkTJvTJUtNEdqO7 krrpU5RYC8cZWhmcQ2LMJJAzNU04JaaT01aMXoOgN6EZP6f/PpN0TRdXXSyCjB0= =tdKD -----END PGP SIGNATURE-----