-----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-etherpad_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-etherpad_14.0-1_amd64.ova 123899044c4c6186939dab8d23e11053 $ sha1sum debian-8-turnkey-etherpad_14.0-1_amd64.ova 68387f7a68b686a698bcb18a4c1a759c959439bf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxSAAoJEIXCXpWhbrlNwywH/joXr0F01t5Q9LQKoyqS8NLN hO3Cvk1R6VMX18ZNSz/VXi3qAL7L2PCW9g7/2LAW19Nk6Zd7qvbigHtoOcAaEAn2 P6VQeRBVDY0UpVyvFYd3RdNhfoscwLjqKNKmDV1gUfR+R/BiFLbQa809/bovtyZ+ pZ8rOJHy9gA90Zv60PFM1xg+VfJFlzc1rWXgepgbayBSmEYo+mg/L24Ki0gHGir6 wJVkffEpFD1ZmvO/bEi5aKghM2Z9Oqd9WMYE5aUb+ggTefRnfQZJPP8Gj2uGPgwf XEUdgkPGkm1utYEjxD83OITTWem/r3irSY6DbkpAo7yOvoNKWJRclnGeAQm26IE= =eEBd -----END PGP SIGNATURE-----