On 8/4/10 1:35 PM, MFPA wrote: > PGPNET messages are encrypted to the keys of all current members. > Before you joined and after you left, they do not encrypt to your key.
It is also worth noting that PGPNET has some very big problems with key management. PGPNET users are apparently comfortable wrestling with these problems (more power to them for that), but we shouldn't pretend the problems don't exist. In a completely connected graph of N nodes there are (N^2 - N)/2 different edges. Or, in English, 40 members equals 780 separate communications links, each one of which can fail and produce problems for other people. The network begins to get spammed with "that last message wasn't encrypted to my new key, please re-send." The network slowly begins to drown with communications overhead: key synchronization, resend requests, failure notifications, etc. PGPNET is probably operating pretty close to the limits of OpenPGP. At some point the math bites you hard and doesn't let go. A couple of years ago at USENIX Dan Wallach of Rice University talked about his difficulties getting 30 Ph.Ds in computer science to all communicate on an OpenPGP-encrypted mailing list. His precise phrasing was, "it was the torment of the damned." _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
