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ctcp.0.9
by Damien Lucifer 17 Dec '03

17 Dec '03

-----BEGIN PGP SIGNED MESSAGE----- This is a program i found on unimi that offers secure socket connections, utilitizing a simple server/client. It can be installed without root priveledges and uses d/h for key transfers. Anyone looked this package over, and if so what is your oppinion about it? Included below is the THEORY file that describes the key exchange: The encryption negotiation is performed using a protocol similar to FTP/SMTP/NNTP. The client sends commands to the server and the server returns a four-digit response code. Unless stated otherwise, all numbers in this document are hexadecimal with the most significant byte first. When a connection is initiated, the server should send a 2000 response indicating that it is ready to accept commands. Commands: DH3DES - Diffie-Hellman Key exchange followed by Triple-DES encryption If supported, 3001 is returned. The following commands are then expected: MOD - If an argument is supplied, it is the number, in hexadecimal, to use as the modulus. Responses: 2210 - okay 4031 - invalid number 4032 - too small 4033 - too large If no argument is given, the server should supply the modulus, sending 2211 followed by the modulus. If the server is unable to supply a modulus, 4034 should be returned. GEN - this should follow MOD. The generator to use. The format is the same as that of the MOD command. The response codes are 2210, 2211, 4031 or 4034 EXCH - Key exchange Client sends exch followed by gen raised to hir secret exponent. Server sends 4030 if a gen/mod has not been agreed upon. otherwise 2212 followed by gen raised to its exponent ENCR - Begin encrypted Session 4020 - No key selected for encryption 2300 - Encrypted session begin LPORT xxxx - this command takes a 16-bit hexadecimal port number argument, and connects to the specified TCP port on the local host. Responses: 2400 - connected 4010 - Unable to connect 4011 - Access denied RPORT xxxxxxxxxxxx - Connect to remote port The argument to this command is a 48-bit hexadecimal number representing the IP address and port number to connect to. The response should be first 2500, then when the connection has been attempted: 2400 - connected 4010 - Unable to connect 4011 - Access denied QUIT - quit Response: 2100 - Goodbye Summary of error codes: 1xxx - informational messages 10xx - server is supplying additional information that the client may ignore. 11xx - server is responding to a client's request for information 2xxx - okay 20xx - Server is ready 21xx - Disconnect, goodbye 22xx - Command okay 23xx - Encrypted session begins now 24xx - Session with another service begins now 25xx - Command ok, operation in progress, please wait 3xxx - ok so far, send the rest 4xxx - command was okay but could not be processed 5xxx - command not understood or not implemented Triple-DES The triple DES encryption uses output feedback exclusive-ored with a non-sequential counter. There are three counters, each of which is exclusive-ored with the data block before encryption with the corresponding key. The counters are incremented in each round by a shared, secret value which is part of the total key. The result of each round of encryption is exclusive-ored with the data stream. I0 ------ ----- | | | I1 ----- | ---A1------- | ---> \ | | \ | --XOR | --XOR | | | E1 | E1 | | | I2 ----- | ---A2------- | ---> \ | | \ | --XOR | --XOR | | | E2 | E2 | | | I3 ----- | ---A3------- | ---> \ | | \ | --XOR | --XOR | | | E3-------^ E3-------^ | | v v XOR with data stream I0 - Initialization Vector I1 - Initialization of counter 1 I2 - Initialization of counter 2 I3 - Initialization of counter 3 E1 - Encryption with Key 1 E2 - Encryption with Key 2 E3 - Encryption with Key 3 A1 - Add increment value 1 A2 - Add increment value 2 A3 - Add increment value 3 -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMh219rGlo8DEMb2JAQEzWgP/VpcWiL8+UN+7l7wCtUr6N5Bk4iqG5fYq Jb9ImvVA3h2k8cGz/ETBQW/3H9GA9jCsqzLrgcUewAa8CgdmhPoVE04e2scAxp4l y2peJlQmakCl2RCKHJZPTTaOLnsBU4NCZxwW8Q4xeUb0KBYfiW9XeULleyhhfsO2 n7XYpc4XhaY= =vGhK -----END PGP SIGNATURE-----

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IE Security Flaw
by jya＠pipeline.com 17 Dec '03

17 Dec '03

Markoff reports today on the MS IE security flaw discovered by the Princeton team and posted here recently. See: http://www.nytimes.com/yr/mo/day/news/financial/web-browser-flaw.html

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Re: Lesson 2 in cracking (cryptoanalysis 001)
by Scottauge＠aol.com 17 Dec '03

17 Dec '03

In a message dated 96-08-21 20:43:50 EDT, you write: >The point is that if you took two novels by the same author and >completely sorted them alphabetically they'd be almost the same. The examples cited did this by word, not by message as your stating. >So a block of PGP encrypted ascii-armored (i.e. 8=>7-bit encoding) >wouldn't affect the frequency counts? Tell me, how long have you been on >your current medications? I was talking about the algorithm as given, not PGP. > That's the point!! IT'S A JOKE!!! You know, "hahaha - very funny"? Not a > serious proposal? I know! But at least it is relevent to the group! How many points of attack have you seen on here? How many techniques have shown up here? P.S. My apologies to the fella I called a troll. It was uncalled for - lacking in social skills.

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Re: Spamming (Good or Bad?)
by James C. Sewell 17 Dec '03

17 Dec '03

At 03:35 AM 8/23/96 +0000, Vipul Ved Prakash wrote: > >This is peculiar. Nobody seems to mind ads in Newspapers, printed >magazines, TV, and for that matter web sites. That is unwanted stuff I'd suggest that most/all of us 'mind' ads in papers, tv, etc. The difference is that while we can do nothing about commercials on TV (short of breaking federal law and jamming the signal) we can do something about spam. If there is enough concensus we can develop/distribute/encourage the use of new mailers that will help defeat spam. For example: If mail comes into a server that has more than 25 recipients then it is only forwarded to those who have "signed up" for that sender. When we subscribe to Cypherpunks we also have to register that with our network of mail servers. Then if Mr. Spam sends stuff out it's not been "signed up" for so it gets trashed. I don't really like mail servers redirecting my mail, but perhaps we could arrive at a reasonable criteria for filtering if we tried real hard. Jim Jim Sewell - jims(a)tansoft.com Tantalus Incorporated - Key West, FL

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Verdict in "MTV" Case
by tcmay＠got.net 17 Dec '03

17 Dec '03

Indiannapolis, IN (A.P.) -- A jury has awarded the State of Indiana $25 million in damages in the case of "Indiana v. Music Television." Music Television, also known as MTV, was accused of costing the state of Indiana more than $100 million in additional educational expenses due to students watching MTV when they should have been doing their homework. The jury foreman in the case was quoted as saying, "Like, like the kids are, like, goofin' off. Besides, MTV doesn't like play enough old stuff, like Zeppelin and Floyd." Following the various court decisions to award damages to states for medical costs associated with smoking by state residents, a barrage of similar lawsuits is happening across the country. School systems are suing book publishers, movie makers, television broadcasters, shopping malls, and miniature golf arcades. Makers of sports equipment are facing crippling lawsuits by insurers. The last remaining American bicycle maker, Trek, announced that it is withdrawing from the U.S. market, following the $37 million judgement against it in "Oregon v. Trek." --Klaus! von Future Prime

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BOD_ies
by jya＠pipeline.com 17 Dec '03

17 Dec '03

8-23-96. FiTi: "The race is on for global groups to develop 'electronic purses' using smart cards." "We are moving into the electronic age where money will just be information about the wealth you have," says Visa. Some companies believe that parts of the body, rather than paper or coins, can be used to establish the amount of money somebody has available to spend. WaPo: "Group Plans Challenge To Net Address Monopoly." The end may be at hand for the virtual monopoly that Network Solutions holds over the registration of Internet addresses. The Internet Assigned Numbers Authority, the Internet Society and IETF will organize a competition for the right to operate new registries. The group's aim is to create alternatives to the established categories of Internet addresses. NYP: "Flaw Said to Be Found in Microsoft's Browser." Markoff's report on the Princeton group's discovery. ----- http://jya.com/bodies.txt (17 kb for 3) BOD_ies

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"Regulation of Commerce" and the Crypto Issue
by tcmay＠got.net 17 Dec '03

17 Dec '03

It seems to me that in recent years nearly any type of sweeping legislation is justifed, constitutionally, by the clause in the U.S. Constitution which says Congress shall have the power to regulate commerce. (More precisely, the clause says: "To regulate commerce with foreign nations, and among the several states, and with the Indian tribes;" This is usually interpreted to mean _interstate_ commerce, and not sales/commerce/etc. that do not centrally involved more than one state....obviously nearly all things sold in one state are sold in other states, so there is lattitude for applying the commerce clause, albeit wrongly.) Today's news is the sweeping new restrictions on tobacco and cigarettes, including restriction on advertising and even on the placement of tobacco and cigarette logos and names on sports jerseys and shirts. (The much-publicized press event is not for another hour, as I write, so I don't know all the details. I'll be watching.) Note that similar restrictions on alchohol advertising were recently struck down by the Supreme Court as being unconstitutional infringements on free speech. Many expect the same outcome with these latest proposed restrictions. (The issue of advertisements of hard liquor, cigarettes, condoms, and other "unhealthful" [sic] products on television and radio is of course complicated by the role of the Federal Communications Commission and by "gentlemen's agreements" not to carry advertisements for some products.) Personally, I have never smoked, nor chewed, nor mainlined nicotine. Personally, I dislike cigarette smoke. But this is all _personally_. If a restaurant, bookstore, airline, bar, antique store, gym, or whatever wishes to allow smoking (or not), this is there choice. As many of us see things, it is not for the government to take a kind of "poll" of what people like and dislike and then to impose rules on property owners as to what smoking or nonsmoking policies they may set. Likewise, if I want to silk-screen a "Joe Camel" image, or a "Bud Frogs" image, on a t-shirt, this is between me and the putative owner of these images. Free speech and all. Or, to remove any confusion with the issue of owned logos, to silk-screen a fictitious cigarette brand on a shirt and then wear it, or sell it. It seems likely that individual wearers of such shirts will not be busted (think of how many already exist, and there is no plan for confiscating them), but that the burden will be placed, as it is so often conveniently placed, on the shirt makers. The catch-all for these laws seems to be the "regulate commerce" language in the Constitution. Cigarettes are sold in multiple states, the logic goes, so the commerce clause gives the government the power/authority to regulate it. (Well, Steven King novels are sold in all 50 states, too. Does this "regulate commerce" clause give the government the power/authority to regulate what King puts in his novels? Or to ban advertising for Steven King novels? Or to require that stores only sell such novels to adults?) This language is already being cited for some as a justification for regulating encryption (hey, some businesses use it!), digital signatures (ditto), and other forms of crypto. In fact, since nearly everything involves "commerce" in some way, whether interstate or not, the "regulate commerce" clause can presumably be used as a jusitification for interfering in all sorts of areas. The several legal experts out there on this list can clarify any errors of interpretation I have made. I certainly know that the commerce clause cannot be used to suppress certain kinds of speech, though the boundaries of where it may be applied seem unclear. I do expect it to be used for crypto, though, and this might even be upheld by the Supremes, especially in any areas directly involving "digital commerce." We should watch for this, and think about ways to deflect or derail such interpretations. --Tim May We got computers, we're tapping phone lines, I know that that ain't allowed. ---------:---------:---------:---------:---------:---------:---------:---- Timothy C. May | Crypto Anarchy: encryption, digital money, tcmay(a)got.net 408-728-0152 | anonymous networks, digital pseudonyms, zero W.A.S.T.E.: Corralitos, CA | knowledge, reputations, information markets, Licensed Ontologist | black markets, collapse of governments. "National borders aren't even speed bumps on the information superhighway."

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The Future Of Cyber Terrorism
by Joseph M. Reagle Jr. 17 Dec '03

17 Dec '03

The Future Of Cyber Terrorism The proceedings or a recent conference on the subject of Cyber Terrorism are now available online. The conference looked at terrorism carried out with the tools of today's information age and against the computer and information systems that the world increasingly depends upon. World Wide Web: http://www.acsp.uic.edu/OICJ/CONFS/terror02.htm _______________________ Regards, I hate quotations. -Ralph Waldo Emerson Joseph Reagle http://rpcp.mit.edu/~reagle/home.html reagle(a)mit.edu E0 D5 B2 05 B6 12 DA 65 BE 4D E3 C1 6A 66 25 4E

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secret message
by JOHN E. HOLT 17 Dec '03

17 Dec '03

Date: 01-Aug-96 14:50 EDT From: JOHN E. HOLT [76473,1732] Subj: puzzle ^%}{{ ZZ VVPAGMIGJEKMCCHIAKKPEHJDDDLOABGAMMJOCDFNOLNOKKKNIADPBGPPOEPIDCEMPGWW VVFCMOPKLKPJOHCNCJBDGOOJKFANCJJBDBMDIFIEKEDPLKDDGMPLHMIIPIJFMKOLENWW VVCAKJGJCKPAEOOMLJPNFJEKEINIHFKHNOLPCAHLEKHHLMHJFCOEKAFAGPHJBCPBHBWW VVOKLAENICAFDHEOEODMHMFGIONMAACAOHEOHDAJDNENGAHABNHGOCCPJNFDMAMKADWW VVMGDHKGPKBEIDBNLOCMLFMEIOKBFBFKJIMIIIFKJDFENCBPAPFBAOFMHEDODBFFPDWW VVOMFFJBNGEJPLGHJLFOBLFOGCBKAACEICLBIKHGILKCLMHPFIAHPDEOOODPPMLGDNWW VVGLDNEBDINMILDJDOJOJNKCLIBBKBCBEJPBJCFHGKMFLLEPGLGOOIIGAKJEGNPFHDWW VVIJBMFLALHPEHHGEGPCLGILBDBMEGMOGOIFBPPONGEDJPNFNMPCJFJPAEMIDOEMBLWW ZZ ZZ Distribution: To: ME > [76473,1732]

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Re: (fwd) ANNOUNCE: Free Little PGP Credit Card App
by Alan Olsen 17 Dec '03

17 Dec '03

At 07:54 PM 8/22/96 -0400, Damaged Justice wrote: >>From: "David j. Sopuch" <djs(a)iwinpak.com> >Newsgroups: comp.infosystems.www.misc >Subject: ANNOUNCE: Free Little PGP Credit Card App >Date: Thu, 22 Aug 1996 12:00:24 -0400 >Organization: Datamax Research corp. >Lines: 10 >Message-ID: <321C8418.2647(a)iwinpak.com> > >v2.08 of the iWinpak Internet Payment System is now available in >both freeware and shareware versions at http://www.iwinpak.com An interesting little piece of CGI code, but the demo leaves a bit to be desired. The demo is for bank checks. The order form has you sending your bank information (including bank number and check info) in the clear. So the hooks into your credit card are not sent in the clear, but the ones to your bank are... Double plus ungood. It is a start... How good of one, I am not certain though... --- Alan Olsen -- alano(a)teleport.com -- Contract Web Design & Instruction `finger -l alano(a)teleport.com` for PGP 2.6.2 key http://www.teleport.com/~alano/ "We had to destroy the Internet in order to save it." - Sen. Exon "Microsoft -- Nothing but NT promises."

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