-----BEGIN PGP SIGNED MESSAGE----- On another mailing-list, there has been a lengthy discussion going on about encrypting the list-traffic or not. Although I personally agree, that encrypting a public mailing list is kind of useless I would like to know from a technical perspective if PGPdomo supports _both_ PGP and plain-text simultaneously on the same mailing list (if no public key available, send plain-text, otherwise encrypt). Also, considering the time it takes to encrypt/sign a message for each individual user (assuming they use pgp), isn't that too much overhead for the list-server, when we deal with a few hundred people and maybe traffic like on cypherpunks? Any experiences from PGP-Domo users/admins would be greatly appreciated. Ciao Harka /*************************************************************/ /* This user supports FREE SPEECH ONLINE ...more info at */ /* and PRIVATE ONLINE COMMUNICATIONS! -> http://www.epic.org */ /* E-mail: harka(at)nycmetro.com (PGP-encrypted mail pref'd) */ /* PGP public key available upon request. [KeyID: 04174301] */ /* F-print: FD E4 F8 6D C1 6A 44 F5 28 9C 40 6E B8 94 78 E8 */ /*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ /* May there be peace in this world, may all anger dissolve */ /* and may all living beings find the way to happiness... */ /*************************************************************/ ... Microsoft - "Where do you want to crash today?" ___ Blue Wave/386 v2.30 [NR] -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQEVAgUBM0NCbTltEBIEF0MBAQFasAf+ODKv3pX/bCZy66coA9SCGaB2BUgWEPfv n42WokKZY9HY/WrRLJ4vTtbiJs+p7i9vJA37VUy7I/vAZJ5fFQOHYCWS9g8Mpxtn kOmDoIj7grfNXDEgYa91+Shv5xEJXo62bGnW+YlX7TNeb3buQj2H91ova4Jk3oci sBKFSRLf5EDtOjBOBXcxy1V232k2wLoefSvVORWmjHtEyzCdstenCv4jjEf5LF+E uIzBr7+MmzJPK49lM17izHTpBv/LALBvyD2lq1IfJl0psnfbFtL2SMJeOAVdkQe/ Hqn8qeNHpLwuvPTO/QZP85aMRnHCNVVJaeHJpLJnX3pMVrLjCOGC3g== =7xD4 -----END PGP SIGNATURE----- If encryption is outlawed, only outlaws will have encryption...
In <TCPSMTP.17.4.3.0.48.36.2780269260.1593210@nycmetro.com>, on 04/02/97 at 11:48 PM, harka@nycmetro.com said:
On another mailing-list, there has been a lengthy discussion going on about encrypting the list-traffic or not. Although I personally agree, that encrypting a public mailing list is kind of useless I would like to know from a technical perspective if PGPdomo supports _both_ PGP and plain-text simultaneously on the same mailing list (if no public key available, send plain-text, otherwise encrypt). Also, considering the time it takes to encrypt/sign a message for each individual user (assuming they use pgp), isn't that too much overhead for the list-server, when we deal with a few hundred people and maybe traffic like on cypherpunks?
Any experiences from PGP-Domo users/admins would be greatly appreciated.
I haven't used PGP-Domo but I have run a PGP mailing list using my own software for OS/2. You can cut down on some of the overhead by encrypting the message with multiple keys but this increases messages size. If you have a large # of subscribers you may wish to break up your encryption into blocks, say 25 keys per message. I think it will depend on your system on how may subscribers & messages you could handle on a daily basis. Say a user base of 1000 subscribers with 100 messages/day that's 100,000 encryptions per day. While I think this would be doable on a PC you would have some serrious lag. For a large subscription base I would go to a digest format. This would cut down those 100 messages to say 5-10 digests. This would get you to 5-10,000 encryptions which would be much more doable. On the mailing list that I am running I only have 4-5 messages a day with a user base of ~130 so volume has not been a problem. :) -- ----------------------------------------------------------- William H. Geiger III http://www.amaranth.com/~whgiii Geiger Consulting Cooking With Warp 4.0 Author of E-Secure - PGP Front End for MR/2 Ice PGP & MR/2 the only way for secure e-mail. Finger whgiii@amaranth.com for PGP Key and other info -----------------------------------------------------------
harka@nycmetro.com writes:
On another mailing-list, there has been a lengthy discussion going on about encrypting the list-traffic or not. Although I personally agree, that encrypting a public mailing list is kind of useless I would like to know from a technical perspective if PGPdomo supports _both_ PGP and plain-text simultaneously on the same mailing list (if no public key available, send plain-text, otherwise encrypt). Also, considering the time it takes to encrypt/sign a message for each individual user (assuming they use pgp), isn't that too much overhead for the list-server, when we deal with a few hundred people and maybe traffic like on cypherpunks?
It depends a lot on the traffic. If it's 100 messages a day, then it's a few hundred times the traffic on a list with a couple of messages a week. It also depends on the kind of box you're running it on (386? Sparc 20?). So, if I were looking to cut down on the CPU time required and the traffic, I'd do this: 1. ecnrypt with the keys of every recipient to send out one encrypted messages that every recipient can decrypt. 2. consider using a daily digest (or digest every few hours). Anyway, if you have more than a dozen people on the mailing list whom you don't know personally, you should *assume* that at least one of them is a narc and/or an asshole who'll decrypt it and pass it on to others. --- Dr.Dimitri Vulis KOTM Brighton Beach Boardwalk BBS, Forest Hills, N.Y.: +1-718-261-2013, 14.4Kbps
participants (3)
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dlv＠bwalk.dm.com -
harka＠nycmetro.com -
William H. Geiger III