December 2003 - cypherpunks-legacy

Accounts...
by Thomas Riggley 17 Dec '03

17 Dec '03

This brings up an interesting point to which I have been trying to create a person list myself. Certain systems out there offer Free account to anyone without any sort of identity check.. I have only found a couple myself and all of them seem to limit access to News and ftp unless you send them money... However I am still looking for these computers which seem to offer the best anonymous access to anyone... Could you please e-mail me ANY sights that offer free/cheap internet access via telnet that do not check id? -Tom -=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=- * * * Thomas Riggley jester(a)cyberspace.org * * * * What ever happened to privacy?! * * * -=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=--=><=-

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Anonymous remailer for Waffle
by kafka＠desert.hacktic.nl 17 Dec '03

17 Dec '03

I made a simple remailer for Waffle. Please don't flame me on the code. You install it by putting an entry in your /waffle/system/aliases file. The arguments are remail <remailer-username> <uucpname> <node> If the username of your remailer is "anon", your uucpname is "foobar", and your full nodename is "bla.org", you have to put the following line in /waffle/system/aliases: anon | remail anon foobar foobar.bla.org FUTURE I want to make it penet style, but with support of PGP, chaining and a database of (passworded) anon accounts. Future versions will read the uucpname from the /waffle/system/static file. (I was too lazy to do that now). To make it possible to reply, I think the following approach will do: the 'reply-to:' address will be "<anon(a)some.system.org> (NickName Anon-ID=XXXXXX)" where XXXXXX is the number of the anon account you want to send mail to, and NickName your (possible) nickname. Header-fields: X-Anon-To: (newsgroup or e-mail address) X-Anon-Encrypted: PGP (to let the remailer know it is encrypted) Please let me know your comments... Patrick :) ---------------------- cut here --------------------------- #include <stdio.h> #include <dos.h> #include <time.h> #include <io.h> #include <sys\types.h> #include <sys\stat.h> #include <fcntl.h> #define MAIL 0 #define NEWS 1 main(int argc, char *argv[]) { const char *Months[]={"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul","Aug","Sep","Oct","Nov","Dec", NULL}; const char *Days[]={"Mon","Tue","Wed","Thu","Fri","Sat","Sun",NULL}; char UnixDate[30]; char type = 0; char c[1024]; FILE *f; char to[1024]; char from[60]; char subj[128]; char cmd[128]; char *fname; char *template = "XXXXXX"; struct dosdate_t d; struct time t; c[0] = '\0'; if (argc < 4) { printf("Usage: remail <remailer-username> <uucpname> <node>\n"); printf("Example: remail remail desert desert.hacktic.nl\n"); return; } while (strlen(gets(c)) != 0 && ! feof(stdin)) { if (strstr(c, "Subject: ") != NULL) strcpy(subj, &c[9]); if (strstr(c, "From: ") != NULL) strcpy(from,&c[6]); if (strstr(c, "X-Anon-To: ") != NULL) strcpy(to,&c[11]); } if (strstr(to, "@") != NULL) && (strstr(to, "!") != NULL) type = MAIL; else type = NEWS; gettime(&t); _dos_getdate(&d); sprintf(UnixDate, "%s, %d %s %d %02d:%02d:%02d GMT", Days[d.dayofweek], \ d.day, Months[d.month-1], d.year,t.ti_hour, t.ti_min, t.ti_sec); if (type == MAIL) { fname = mktemp(template); f = fopen(fname, "wt"); fprintf(f, "From %s %s remote from %s\n", argv[1], UnixDate, argv[2]); fprintf(f, "From: %s@%s\n", argv[1], argv[3]); fprintf(f, "To: %s\n", to); fprintf(f, "Subject: %s\n", subj); fprintf(f, "Date: %s\n\n", UnixDate); while (! feof(stdin)) putc(getc(stdin), f); fclose(f); sprintf(cmd, "rmail -f %s -u %s %s < %s", argv[1], argv[1], to, fname); system(cmd); unlink(fname); } else if (type == NEWS) { fname = mktemp(template); f = fopen(fname, "wt"); fprintf(f, "Path: %s!%s\n", argv[1], argv[2]); fprintf(f, "From: %s@%s\n", argv[1], argv[3]); fprintf(f, "Subject: %s\n", subj); fprintf(f, "Date: %s\n", UnixDate); fprintf(f, "Newsgroups: %s\n\n", to); while (! feof(stdin)) putc(getc(stdin), f); fclose(f); sprintf(cmd, "rnews < %s", fname); system(cmd); unlink(fname); } } ---------------------- cut here --------------------------- begin 600 remail.exe M35I, !@ 0 @ X ___* H /@ $ ^U!J<@ M ! 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2 1

No Subject
by Anonymous 17 Dec '03

17 Dec '03

I simply had to pass this article along to c'punks... Newsgroups: comp.org.eff.talk From: milles(a)fi.gs.com (Stevens Miller) Subject: NSA remarks at "Lawyers and the Internet" Date: Tue, 26 Apr 1994 17:04:33 GMT I'm a computer programmer and attorney who is a member of the Committee on Technology and the Practice of Law, a task force assembled by the Association of the Bar of the City of New York. Last Friday we held a conference on "Lawyers and the Internet." Approximately 200 lawyers attended. Speaking in favor of the Clipper proposal was Stuart Baker of the NSA. I won't repeat his substantial arguments, but his formal approach (which Mike Godwin tells me is becoming a standard component of the government's pro-Clipper road show) is worth some attention. Parroting his own words at CFP, Baker told us: - The debate over the Clipper proposal is "really just a culture clash among net-heads." - Those opposing the proposal are late-coming counter-culturists, "who couldn't go to Woodstock because they had to do their trig homework." - Opponents envision themselves as would-be "cybernauts in bandoliers and pocket-protectors." I quote these remarks (as best I can from memory; my hands were shaking too much to write clearly at this point) to make it clear that our government's representative has reached a conclusion about the community opposing its plan. He has concluded that the members of that community are so beneath his respect that it is more appropriate to make fun of them than it is to respond to their views. As Godwin pointed out later, the NSA really just doesn't care what anyone says. That, he said, is why Baker repeatedly invokes the spectre of child-molestation as the chief evil Clipper will prevent; by that invocation is much meritorious debate deflected. Baker replied to this by emphasizing the reality of the pedophilia potential of networks, telling us that many users of networks "are teenaged boys with inept social skills." Regardless of the law-enforcement potential of this plan, it is worth noting that an official spokesman for the government endorses it by pointing out that its opponents valued their studies more highly than they did rock and roll. That because the popular image of the bookworm can be juxtaposed against that of Rambo in a funny way, bookworms don't have to be taken seriously. That if you play with computers as a youngster, your community, your parents and your own brain can't save you. That the government must protect you from your own ineptitude, whether you want its help or not. The message was pretty clear: Stuart Baker doesn't care what you say, but he wants the power to listen. --- Stevens R. Miller |"The complete truth is not the (212) 227-1594 | prerogative of the human judge." sharp(a)echonyc.com | New York, New York | - Supreme Court of Israel

8 8

No Subject
by Anonymous 17 Dec '03

17 Dec '03

Since I haven't seen this article float through the list, I hope John doesn't mind it being reposted. From: gnu(a)toad.com (John Gilmore) Newsgroups: alt.politics.org.nsa,comp.org.eff.talk Subject: Why is clipper worse than "no encryption like we have today"? Date: 27 Apr 94 08:50:17 GMT Organization: Cygnus Support, Mt. View, California Mike Tighe <tighe(a)convex.COM> wrote: > But the NSA is not going to control the keys, are they? I thought it was > going to be under the control of two independent agencies. And even if they > are leaked, how is that worse then the system we have today, where no keys > are required? It's worse because the market keeps moving toward providing real encryption. If Clipper succeeds, it will be by displacing real secure encryption. If real secure encryption makes it into mass market communications products, Clipper will have failed. The whole point is not to get a few Clippers used by cops; the point is to make it a worldwide standard, rather than having 3-key triple-DES with RSA and Diffie-Hellman become the worldwide standard. We'd have decent encryption in digital cellular phones *now*, except for the active intervention of Jerry Rainville of NSA, who `hosted' a meeting of the standards committee inside Ft. Meade, lied to them about export control to keep committee documents limited to a small group, and got a willing dupe from Motorola, Louis Finkelstein, to propose an encryption scheme a child could break. The IS-54 standard for digital cellular doesn't describe the encryption scheme -- it's described in a separate document, which ordinary people can't get, even though it's part of the official accredited standard. (Guess who accredits standards bodies though -- that's right, the once pure NIST.) The reason it's secret is because it's so obviously weak. The system generates a 160-bit "key" and then simply XORs it against each block of the compressed speech. Take any ten or twenty blocks and recover the key by XORing frequent speech patterns (like silence, or the letter "A") against pieces of the blocks to produce guesses at the key. You try each guess on a few blocks, and the likelihood of producing something that decodes like speech in all the blocks is small enough that you'll know when your guess is the real key. NSA is continuing to muck around in the Digital Cellular standards committee (TR 45.3) this year too. I encourage anyone who's interested to join the committee, perhaps as an observer. Contact the Telecommunications Industry Association in DC and sign up. Like any standards committee, it's open to the public and meets in various places around the country. I'll lend you a lawyer if you're a foreign national, since the committee may still believe that they must exclude foreign nationals from public discussions of cryptography. Somehow the crypto conferences have no trouble with this; I think it's called the First Amendment. NSA knows the law here -- indeed it enforces it via the State Dept -- but lied to the committee. -- John Gilmore gnu(a)toad.com -- gnu(a)cygnus.com -- gnu(a)eff.org Can we talk in private? Join me in the Electronic Frontier Foundation. Not if the FBI and NSA have their way. Ask membership(a)eff.org how.

1 0

Re: Detweiler
by fnerd＠smds.com 17 Dec '03

17 Dec '03

> > Who is Detweiler? > Reuben > Sounds like a good bumper sticker, T-shirt or grafito-- along the lines of "Who is John Galt?" -fnerd don't quote me - - - - - - - - - - - - - - - Gradually, I become aware of a presence. Between me and sustenance stands a woman in a suit. --Michael Swaine -----BEGIN PGP SIGNATURE----- Version: 2.3a aKxB8nktcBAeQHabQP/d7yhWgpGZBIoIqII8cY9nG55HYHgvt3niQCVAgUBLMs3K ui6XaCZmKH68fOWYYySKAzPkXyfYKnOlzsIjp2tPEot1Q5A3/n54PBKrUDN9tHVz 3Ch466q9EKUuDulTU6OLsilzmRvQJn0EJhzd4pht6hSnC1R3seYNhUYhoJViCcCG sRjLQs4iVVM= =9wqs -----END PGP SIGNATURE-----

1 0

Paranoia
by koontzd＠lrcs.loral.com 17 Dec '03

17 Dec '03

I heard last night the the 3rd Battalion of the 12th Special Forces is at Moffett, and that they wanted to modify a building to allow repelling practice. I personally can't think of any reason for an elite fighting force to be stationed in an area of urban sprawl. Has anyone noticed any other elite forces being located in high population areas?

4 3

stop mailing to remail@infinity, please
by Eli Brandt 17 Dec '03

17 Dec '03

Somebody has been repeatedly (probably by a script) trying to remail through me to "remail(a)infinity.hip.berkeley.edu", which bounces back to me (unknown user). If it's somebody on this list, could you stop? Otherwise I'll have to have something grep for it so I can source- block the sender, and I don't really want to get into looking at incoming traffic. Eli ebrandt(a)hmc.edu

1 0

Weak IDEA keys...
by jpp＠markv.com 17 Dec '03

17 Dec '03

Well, I re-read the article, and here is the real dope. In Crypto '93 Joan Daemen, Rene' Govaerts, and Joos Vandewalle write: Abstract. Large classes of weak keys have been found for the block cipher algorithm IDEA, previously known as IPES [2]. IDEA has a 128-bit key and encrypts blocks of 64 bits. For a class of 2^23 keys IDEA exhibits a linear factor. For certain class of 2^35 keys the cipher has a global characteristic with probability 1. For another class of 2^51 keys only two encryptions and solving a set of 16 nonlinear boolean equations with 12 variables is sufficient to test if the used key belongs to this class. If it does, its particular value can be calculated efficiently. It is shown that the problem of weak keys can be eliminated by slightly modifying the key schedual of IDEA. [Typo's are probably mine :)] So, it isn't as bad as I thought. Chances are about 2^51/2^128 == 1/2^77 that you will get a bad key if you choose keys at random with even distribution from the IDEA key space. PGP tries to do exactly this. Once again, though, let me ask: has any one done anything about implementing the _very_simple_ patch the authors describe? PGP 2.5, or 2.6 anyone? I am not _really_ paranoid, but I would hate it if a critical message about the March 15th assassination plot were to fall into the wrong hands because of a bad choice of IDEA keys. A related technical question: are there other easy to compute 2^n x 2^n -> 2^n 'invertable' functions than the three used in IDEA? (namely (1) xor, (2) sum mod 2^n and (3) product mod (2^n)+1 with 0 taken to represent 2^n.) j'

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Re: stop mailing to remail@infinity, please
by nobody＠jarthur.cs.hmc.edu 17 Dec '03

17 Dec '03

Eli Brandt <ebrandt(a)jarthur.cs.hmc.edu> wrote: > Otherwise I'll have to have something grep for it so I can > source-block the sender, and I don't really want to get into > looking at incoming traffic. Yeah, aside from the privacy problems here, there are other reasons for not looking at mail going through your remailer. I run a remailer, and one night a few weeks ago, we had a power failure here during the night, so the system got hosed. When I was setting it back up in the morning, I saw the incoming mail which hadn't gone into the filter. Well, there were some messages in there which ... well, let me just say that someone was using my remailer for a purpose which I would have rather not known about. Sometimes ignorance is bliss.

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PROGRAMMING: Assessment wanted.
by schirado＠lab.cc.wmich.edu 17 Dec '03

17 Dec '03

I'm not a programmer, so this is all over my head. I'm just throwing this out as a public service. I will forward mail to the original author. *** If a subscriber has the time and interest, I can supply them with sources to build a new public key cryptography system based on unpatented and UNPATENTABLE (because they are already published) cryptographic systems which have an entire level of better security than that RSA rubbish. So far, it appears that keys in the neighborhood of 100-200 bits are equivalent to the "600" bits for RSA and the "military grade" claims of 1024 bits (PGP) should be easily doable in around 300-400 bits. Requirements: You need to either have a good grasp on finite mathematics (fields, rings, and such..just a basic understanding is all that is necessary) or willing to spend the time to learn it (about a week if you are already math-inclined). You need programming skill too (of course). I would also recommend that you use a different compression system from that LZ-based stuff that half the world is using in favor of higher order Markov tree things (I will supply complete references for this too). I am doing this because I have the necessary information but lack the time to develop this project further. [...] Okay, for a good overview paper of doing it in hardware (the software solution is also possible..just that you can't do it quite the same..online that is), see _An Implementation of Elliptic Curve Cryptosystems Over F-2-155_ , IEEE Journal on Selected Areas in Communications, Vol. 11, #5, June 1993 (page 804). Essentially, nonsupersingular elliptic curves over the finite group of characteristic 2 become reducible to the discrete logarithm problem. Watch when you are looking for papers and doing the research for stuff by Neal Koblitz..he really knows his stuff and wrote a very good introductory book to finite arithmetic and cryptology, although the elliptic curve system in the book was written before the hole in the supersingular case was known. Elliptic curve cryptosystems appear to be the strongest known public key cryptosystem on a per-bit basis in existence. The algorithm is still horrendously slow (just like RSA-based stuff) so don't expect to be doing the encryption/decryption in real time unless you're building it in hardware. The paper mentioned above has all the references you'll need. Use a good solid block cypher for actual encryption and just encrypt a seed using the public key stuff. Do us all a favor and publish it in library as well as full-blown software package form and allow for plug-in encryption modules as well as key management systems so the software doesn't have to be done all over again each time. Same with any compression software you put in it. As far as compression (lossless) goes, you'll have to search for the papers on that because my copy appears to have been borrowed and not returned. Look for "Prediction by Partial Matching" or "PPM". This is a multiple-order Markov solution which does better than the LZ-based things.

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