-----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-mahara_14.0-1_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-mahara_14.0-1_amd64.ova 4e61628c34880e21e2a82c74bd24aa4c $ sha1sum debian-8-turnkey-mahara_14.0-1_amd64.ova 37fadf966dd25ee5f2436577893e416ffd2f55c2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxTAAoJEIXCXpWhbrlNDFoH/jjUMo9pz7+FTr7gw2Z+ojs8 l0LJ/UoGHsf1dHZ/54INrEuNNGoR8KTzmk6tnSdU4V2YTtop74i4mOUY9tO83bao GT/7Sf67Fa9wb5lnbf+PIcdzdE+GoZ9aCUN6FhfTM1wU64auilsiSQxFtmJUAo1H /hG1/PdpnE9Ip15XEiDg3hs3FdSLMp36p21H3Rs9IZ1tZ40lkeQoZgUiT+67UluE xsBjzDcvcuyuKfiGvURgSdzbDFC1XFfwm/TS01CnOVD4dhZblAF9unGPy5LT3yDu tSnXrnnyuY2peqemMYZOGSv3QYyyjp6dI210m8uNktwlOl7ZWiY5bAYi8wq4ZyM= =ZvLl -----END PGP SIGNATURE-----