-----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-lamp_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-lamp_14.0-1_amd64.tar.gz 7986c4046b07c36beafea3dd7a732d3a $ sha1sum debian-8-turnkey-lamp_14.0-1_amd64.tar.gz e9b7b09e5e111783c4a779965bb4d92ce3b5576a -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxTAAoJEIXCXpWhbrlNINEIALHLO39s7nx8ugrj+VHI9eOk oiGxTWJiP6gB/gTI+84pXcsJ3Ss2fGqV+OMBLryiComh+Img40HH2Jc5Jy8hwf2h RhKsY4Gtl8mfjv7bXzweMXYKJ4PbJpqIcBzqQJW2PO7OWeRJxFZqpv5dVCpMEURF vjPk6yk5HV3P3564ojcTdC2R2VHpYV89xlY2v1ts7WXJDiUOUxFH7Ltd2TBrtqD2 ZagkyaM4KuuQyeXQztxOSprv4V2r4y526IlLjIsPE30xhLuUQYU8N4D5HYZ+EBVQ RCY1E3xssHVvrzJuAG1YG35+c9N9pPpn8t217MSUWzEs4y/g4P5+S+bR5cAuap0= =N+eq -----END PGP SIGNATURE-----