Scambio di chiavi
Lo scambio di chiavi deve avvenire utilizzando un canale sicuro.
Una chiave ha questa forma:
-----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.2.3 (GNU/Linux) mIsEP8OGlwEEALPisxGQp2IdQPyxgXcWxWcr1APdZI2fYVcnzfdfwTdJhWcDMXcD bRlpfRs2FudNmeDRrarrlhKIMnMUfJAklHGBF/b9LkLJ/h43+ANltTe8SsgNkoIN mKbkT9izE7buIdPnKYWRBIe3OXWq0zWAWeMLz4L3beJgwW3Ne+mldUWBAAYptClB bnRvbmlvIEJlbGxlenphIDxhYmVsbGV6emFAdXNlcnNwYWNlLml0Poi0BBMBAgAe BQI/w5SSAhsDBgsJCAcDAgMVAgMDFgIBAh4BAheAAAoJEKrZ3uo/rnZp+jED/i8L zwfNoFYRuELHAa5yZI8RhHKum2UM4/ycq+sUKPjTuZkCmHeEq9XtNGlb9dRuaslz o9cgby0TlOnvyFXdCoAZXrpG4LfrySnDb9vD42DkgbgnyjiJ/oLqgCblnx8ecKnb GzP0YNEONhOKcv0gE6W3XL+cxm/sUHa8LX07MPMAiEYEExECAAYFAj/Dnk4ACgkQ dl0PnwkGaT2m4wCfeZ0ym0OhIVa4TMTqsTjed8Pp2eoAn0BuS8XUyCgaz0hHga0J R7bIEZEOiEYEExECAAYFAj/EhnMACgkQItWsVWndLC8iQwCcCKIzbfLLhHeVdUSD +iqSHhYArZ8An1ZQAYak5a3xJ/3a8hN4c1dj6pXTuIsEP8OHywEEAPQaVLvFjRGv 4SiFX4vUhIGuS52jGrYNMu+QybZNttMPGTwL7In0e/hCoastT3nlkhGK1EQmjfXz u33vr3PK6TjqCJXMC0xzv7r1hZw2Io63Bs4O4vNcwAlIxwgZ3Kb/gwNPXD7AA79f ZCistmiJSrseqVHpZUlb6Vum2eLsTTRVAAYpiJ8EGAECAAkFAj/Dh8sCGwwACgkQ qtne6j+udmkLPwP/R+f+D0C5HGlxUgVfr13XOqR6Qr3t/h/A7uZepP4FDdGmfsXY 5+dhdR19ovENPiSAjoEvixRKqzgk7BGkO7ulk3MdBzx3Ammjr8lkljrvQsQyV/hk +k3yAQQMNtcn+pGAkZMMxeV3VRn6XYmQZodWQ108Bkv7Bu3Id5TzvNdW3kE= =mddK -----END PGP PUBLIC KEY BLOCK-----

Dettarla o controllare a occhio che non sia stata modificata è faticoso!!!