December 2003 - cypherpunks-legacy

Clipper Chip report on 700 Club today (Wednesday)
by mlshew＠netcom.com 17 Dec '03

17 Dec '03

I hear there will be a report on the Clipper chip on today's (Wednesday, October 20) 700 Club. Sorry for the very late notice. (The 700 Club, for those without benifit of a handy TV schedule, will be on at 10:00 pm eastern on the Family Channel, and then at 2:00 am Thursday morning. I don't know if there are different feeds for the different time zones, so your milage might not vary.)

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Wizardry's Encryption
by Robert J Woodhead 17 Dec '03

17 Dec '03

Matthew writes (about how Wizardry was encrypted): > But, alas, the character files were in plaintext, and > numerous people figured out how to edit them. They were that way for two reasons: performance (they were always being read and written) and reality (it was a known plaintext situation, since the user could change his character in any manner of methods, like simply trading gold around between the characters, and thus map out the database) Encryption in those days wasn't intended to be strong; it was intended to be strong enough to hold off the pirates for the crucial first few months of sales. Given that we were pushing the machines to the limit of their performance envelopes, we couldn't take too much of a hit (time or code-wise) for strong encryption. And I think Sir-tech still replaces Apple II discs, but I am no longer involved in the company, so you'll have to call and ask them. ;^)

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Paper Shredders
by nobody＠rosebud.ee.uh.edu 17 Dec '03

17 Dec '03

Does anyone know of an AFFORDABLE shredder that really destroys documents by cutting them into confetti, rather than the easy-to-reassemble strips that the typical shredder does?

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Anon Bank Accounts / Imminent Demise of US Govt (Conclusion)
by Robert J Woodhead 17 Dec '03

17 Dec '03

Stanton McCandlish asks: > If the govt is oppressive at all, why support this? Perry E. Metzger posits: > Who needs to break it [government]? At the current rate, > it will have destroyed itself within a decade. My answer is simple: the alternative is worse. Anarchy is usually very uncomfortable, unless you have more guns and money than anyone else. Also, the current US government is, at it's core, based on sound principles. If it crashes and burns, what is it more likely to be replaced by? Whether you like it or not, you live in and are supported by a society, in a myriad of ways. The maintenance and improve- ment of that society, and the betterment of your fellow human beings, ought to be a primary goal. It is for me. And finally, Sameer Parekh opines: > I'd suggest that the politics discussion be taken to another > forum? A good suggestion. I've made my point, and perhaps infected a few people with a meme or two. Time to shut up. Best, R

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Russian LanCrypto info
by Mike Ingle 17 Dec '03

17 Dec '03

Here is some information about LanCrypto, a Russian public-key encryption program. This one sounds interesting. From: IN%"alex(a)crypto.msk.su" 20-OCT-1993 14:36:24.72 CRYPTO BANK System of programms of encryption (decryption) of files To work all users must have the files: afina.exe - programm for generation of new public and secret keys afinall.exe - programm for creation of a common list of public keys vesta.exe - programm for encryption/decryption of file NNNNN.pbl - file contains a new public key,NNNNN is a number of user secret.new - file contains a new secret key secret.key - file contains an old secret key FIRST stage. Generation of new secret and public keys by user User runs prigramm: afina.exe A message apears on the screen: Press any keys User begins to strike rand set of keys.A new secret key writes to floppy diskette A to file sekret.new. A public key writes to the current directory in the file NNNNNN.pbl (NNNNNN is a number of user). If you want to write your secret key on hard disk in current directory you run: afina.exe /k Then all users of sistem exchange their public keys(files NNNNNN.pbl.).We recommend thate users organise a CENTER .(The CENTER collects all public keys,creates a common list of public keys and sends it to users.) SECOND stage. Creation and sending a list of public keys. After exchanging of the files NNNNNN.pbl, user( CENTER ) has the files, received from his partners: N1.pbl N2.pbl ... NM.pbl To create common list of public keys , user( CENTER ) runs the programm afinall.exe . (dot in the end) if files * .pbl lokate in current directory afinall.exe [path] if files *.pbl lokate in other directory. Programm creates a common list and writes it to the file publall.key. THIRD stage. Encrypting of a file. If user number NNNNN encrypts file for user number LLLLL ,user number NNNNN runs : vesta.exe [path\]file_name LLLLLL [\k] (1) (\k is a parametre, the programm vesta.exe finds a secret key in a current directory, ;if you run vesta.exe [path\]file_name LLLLLL ,the programm vesta.exe finds a secret key in floppy diskette ) During the process of its work vesta.exe takes the secret key of user number NNNNN (from current directory(if you use \k) or from ffloppy diskette), takes the public key of user LLLLL (from file publall.key).Useing a secret key of user NNNNN and a public key of user LLLLL vesta.exe creats a common secret key.Then vesta.exe generates a rand session key,useing it and the comman secret key vesta.exe creats a secret session key and encrypts the file. The rand session key is not secret ant it is added to the file. FORTH stage. Decrypting of a file Encrypted file may be decrypted by two ways: 1. by user NNNNN, if he repeats programm (1); 2. by user LLLLL, if he runs : vesta.exe [path\]file_name NNNNN [\k] EXAMPLE 1 ( We have user 000(CENTER) and user 001): User 001 runs afina.exe \k.User 001 has files secret.new and 001.pbl in the current directory. User 001 sends 001.pbl to user 000(CENTR). User 000 runs afina.exe \k.User 000 has files secret.new and 000.pbl .User 000 receivs a file 001.pbl.He has: afinall.exe 000.pbl 001.pbl User 000 runs afinall.exe . (dot in the end ).He has: afinall.exe 000.pbl 001.pbl publall.key The file publall.key user 000(CENTER) sends to user 001. User 000 has : ! User 001 has : ! vesta.exe ! vesta.exe publall.key ! publall.key 000.pbl ! 001.pbl secret.key ! secret.key secret.new ! secret.new test0.txt User 000 encrypts file test.txt for user 001 .He runs : vesta.exe test0.txt 001 /k User 001 receivs test0.txt and decrypts it : vesta.exe test0.txt 000 /k User 001 encrypts file test1.txt for user 000.He runs : vesta.exe test.txt1 000 /k User 000 receivs test1.txt and decrypts it: vesta.exe test1.txt 001 /k SIGNING AND CHECKING OF ELECTRONIC MESSAGE To sign a message you must do: sign.exe file To check yoy must do: notary.exe file NOTALL.EXE makes men.cat(list of all public keys of signatures ) A F I N A PUBLIC KEY GENERATION SYSTEM AFINA is a unique package of programs for automatic generation of a common private key for a specific commynication session between two users. AFINA canbe used in any data transmission system with cryptographical protection. It rules out the need for a prior distribution of private keys to users. AFINA uses the best methods of public key generation between two users that have been tested and widely aookied by Western governments and commercial ventyres. Oyr original algorithm and programs have a four-fold increase in the speed of generating a public key compared to the best known standards while also improving data protection 100-fold. Having purchased the AFINA program, you will become fully independent of any key supplying service. AFINA automatically generates common private key for communication sessions with any user in several seconds. You can choose the key length. It will take two users less than 3 seconds to generate a common private key of 256 bits useng an AT 286 pc operating at 16 MHg. AFINA uses the disk operating system MS DOS 3.30 + and needs 32K of RAM memory. Any CGA, EGA or VGA graphic adapter can be used. A hard disk is desirable to speed up processing. Delivery: AFINA software on 5.25 DS/DD or installation by LAN-Ctypto. LAN-Cryoto provides guides and after-sales (warranty and post-warranty) service of the installed products as well as uodated versions and supplies them on favourable terms. V E S T A File encryption system VESTA is a package of programs providing the encryption of files on a user's disk. VESTA employs the most secure methods of cryptographic data protection such as the Data Encryption Standart (DES), a universally recognized system endrosed by Western goverments and commercial institutions, GOST 28147-89, national data encryption standards in computer networks as well as two LAN-Crypto algorithms for data encryption providing processing speed of 200 Kbyte/sec. on AT-286 (12 Mhz) PC. This is a record time for encryption programs. VESTA will allow you to assure your PC's data integrity, provide raw a "transparent" mode of exchange with a hard disk without delaying data processing. By choosing the appropriate VESTA encryption algorithm, you will be able to have secure exchange of information with most encryption programm users in this country and abroad. Encryption key input can be carried out both from magnetic mediums or keyboard. The number of keys of VESTA for cryptographic algorithms: 18 - DES 10 77 - GOST 28147-89 10 77 - VESTA 1 10 77 - VESTA 2 10 The low boundary of the encryption security is determined by the DES algoritm. For users of IBM PC , and compatibles, VESTA provides man-machine communicatin through the Disk Operating System MS DOS 3.30+. Program size of VESTA package: DES - 6 Kb GOST 28146-89 - 2 Kb VESTA 1 - 2 Kb VESTA 2 - 2 Kb VESTA provides friendly interface and detailed help. DELIVERY: VESTA software on 5.25 DS/DD or installation by LAN-Crypto, guides. LAN-Crypto provides after-sales (warranty and post-warranty) service of the installed products and information on updated versions of programms and makes them available on favourable terms. The extrended reference services. NOTARY SECURE ELECTRONIC SIGNATURE SYSTEM NOTARY is a system for generating electronic signature for PC files assuring their integrity and providing the ability to verify the identy of the author of the data auhor. You can use Notarius while storing information distributing floppy disks, or transmitting information throw public communication chanel. "Digital (electronic) signature" is a full analogue of a handwritten signature. The NOTARY " digital signature " employs two algorithms: one which produces the signature is kept secret, while the other, which verifies the identity of the author, is disseminated to recipients of of the signed documents. The NOTARY "digital signature" procedure employs the program "SIGNATUR" to "sign" a document file and creates a signature file which impossible to forge. The NOTARY checking programm analysizes the contents of document file and quickly and securely checks that the signature is authentic. NOTARY allows you to quickly and effectively introduce paperless processing into offices, local networks, banking systems, exchanges system, data communication networks, etc. NOTARY employs more advanced method of "electronic signature" than widely recognized RSA Digital Signature, which has been endorsed by commercial and goverment institotions in the United States. NOTARY's original algorithms and programm solutions allow the user to speed up the operation of signing documents four-fold compared with best known standarts. NOTARY employs the Disk Operating System MS DOS 3.30+ on IBM PC, and compatibles with the graphic adapter EGA (VGA). NOTARY needs 15 KB of RAM and offers a friendly interface and detalied help. Delivery: NOTARY software comes on 5.25 DS/DD or can be installed by "LAN Crypto", stuff we also provide documentation. "LAN Crytpo" provides warranty and post-warranty service of the installation products and information on updated versions of programs when avaiilable offers them on favourable terms to current users. Best regards. Alex Smirnov

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Entrapment Defense
by edgar＠spectrx.Saigon.COM 17 Dec '03

17 Dec '03

Carl Ellison posted here: If all you're worried about is entrapment, you need only ask the person in question if s/he works for any law enforcement or surveillance agency. If they lie, then anything after that is entrapment. I'm not a lawyer but I learned this from my masseuse in SLC UT, where mixed-gender massage is considered a "sex act for hire" and she was constantly subject to entrapment. I'm not at all sure if the above is true. This came up on this list a few months ago when I was suggesting that people might put a statement, "I am/am not a Law Enforcement Officer or Agent" as part of a "certificate of identity" they could mail to verify their PGP public key. At that time I think the concensus was that a LE officer could sign (the negative form of) the statement and still observe crimes and give testimony. One example given was undercover narcotics officers who could not answer affirmatively without jeopardizing their lives. One defense attorney on another net told me that the entrapment defense is rarely used anymore; "it's easier just to plead your client guilty." Apparently all the prosecuton has to show is that the defendant had a "pre-existing disposition" to commit the crime. Duncan Frissel, can you shed more light on this??? -- edgar(a)spectrx.saigon.com (Edgar W. Swank) SPECTROX SYSTEMS +1.408.252.1005 Cupertino, Ca

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Photo copy money
by charliemerritt＠BIX.com 17 Dec '03

17 Dec '03

Everyone seems to say, no, no pattern recognition in Cannon copiers. This pattern recognition is more than urban legend! I saw it demonstrated on evening news Dollar in Black out. If this is false it is a well orchestrated lie.

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TEMPEST: Re: Monitor radiation overlooking./DES weakness
by edgar＠spectrx.Saigon.COM 17 Dec '03

17 Dec '03

Victor Borisov posted the following on Oct 15: I read about overlooking of monitor radiation. Introder can scan the electron-beam radiation from electron-gun. He simple transmit this radiation to self electron-gun and sinchronize frequance. This method work with b/w monitor. The overlooking of color-monitor more dificult - introder will see 4 gradation of gray (all guns off, work one, two, three guns). But we can select spesial colors (red-blue or blue-green) and allways will work only one (or two) guns. In this way introder will see dark (or light) gray screen without any information!!! Is it corect? Do now present more improve overlooking system? We in the USA refer to this technology as TEMPEST, which is an acronym for Transient ElectroMagnetic Pulse Emanation STandard or Transient Electromagnetic Pulse Surveillance Technology. Victor, I have a long (58K) document about this which I'll be glad to send you, just ask. I think I got it from this list last August maybe. I haven't seen Victor's idea of adjusting screen colors before. I suspect that it would take some balancing of the colors so the combo for foreground/background would be the same strength to a close tolerance. Certainly I wouldn't trust it without confirmation from an experiment that a state-of-the-art TEMPEST device couldn't resolve any information. Victor, could your friend in the KGB arrange for such an experiment?? TEMPEST defenses considered here involve using metal cabinets and other shielding. One relatively inexpensive approach uses metallic wallpaper! Here are some references: From: szebra!novavax.nova.edu!yanek (Yanek Martinson) Subject: INFO: TEMPEST companies To: toad.com!cypherpunks Date: Wed, 16 Dec 92 20:33:10 EDT X-Mailer: Elm [version 2.1 PL1] Lindgren RF Enclosures 400 Gigh Grove Blvd. Glendale Heights, IL 60139 Contact: Wayne Martin 708-307-7200 FAX: 708-307-7571 "LT" Series Shielding System is a complete line of modular enclosures, equipment cabinets and custom enclosures available in virtually all shielding materials. The system features exclusive Double Electrically Isolated construction for maximum attenuation. All enclosures are fully tested and guaranteed. Aplication assistance available. Secure Systems & Services Div. of The R/H Factor Corp. 13990 Goldmark Dr., Ste.401 Dallas, TX 75240 Contact: Ray Helsop 214-907-9288 FAX: 214-669-9160 TEMPEST Products, Systems & Services are for Military/Industrial firms concerned with threat of information security and protection by [sic] electronic eavesdroppoing; also commercial EMI/RFI, reduced emissions products. We provide TEMPEST service and support, data encryption, F.I.S.A. Facility Information Security Assessment Studies, site planning, installation design, facility upgrades, etc. International Paper Co. Longmeadow Rd. Tuxedo, NU 10987 Contact: Larry Fahy 914-577-7247 SAF'N SHIELDED (tm) International Paper provides a unique wallcovering that prevents electromagnetic interference (EMI), wireless electronic espionage, and other forms of electromagnetic eavesdropping. The new wallcovering, a composite structure that incorporates a nonwoven mat of metallic fibers, has been TEMPEST-tested by the U.S. government and can achieve attenuation levels over 100dB. The material, which eliminates the added costs of "hardening" or adding protective shielding to individual pieces of electronic equipment, is being used both in primary applications and to upgrade facilities to higher levels of protection. It also provides a way to plug EMI leaks quickly and effectively. Unlike woven or sheet metal, which typically require gutting entire rooms, this flexible, lightweight material goes up as quickly as wallpaper. No special tools are needed, and downtime is minimal. Transaction Security, Inc. 21 Industrial Ave. Upper Saddle River, NJ 07458 Contact: O. Mark Hastings 201-573-1150 Steel TEMPEST-type enclosures for any size computer hardware. Subject: New number for Secure Systems & Services The new number for SS&S is (214) 907-9288 Also, Lindgren RF Enclosures informed me that they now have exclusive license to market International Paper Company's SAF'N SHIELDED; and they give free samples ;-)) JPW ==================================================================== Date: Mon, 28 Dec 92 11:57:49 PDT From: szebra!jplpost.Jpl.Nasa.Gov!wendtj (Jeffrey P Wendt) To: toad.com!cypherpunks Subject: TEMPEST companies I have recieved information from Veratec re: the product Safe`n'Shield, and I have to say that for an inf0 packet, they have done a great job. The folder comes with 2 sample squares of the Safe`n' Shield material, and the specs for their product are as follows: >----------------------------------------------------------- > Shielding Effectiveness of SAFE`N'SHIELDED (R) >(in dB Attenuation) >___________________________________________________________ >SAF`N'40 tm 10' x 20' x 8' Room >___________________________________________________________ > 10KHz 1MHz 50MHz 400MHz 1GHz >----------------------------------------------------------- > >100 76 53 57 62 >___________________________________________________________ >___________________________________________________________ >SAF`N'60 tm 8' x 8' x 8' Room >___________________________________________________________ > 10KHz 1MHz 50MHz 400MHz 1GHz >----------------------------------------------------------- > >100 N/T* 67 72 87 >___________________________________________________________ >___________________________________________________________ >SAF`N'80 tm 8' x 8' x 8' Room >___________________________________________________________ > 10KHz 1MHz 50MHz 400MHz 1GHz >----------------------------------------------------------- > >100 >81 100 90 90 >___________________________________________________________ In addition to some general notes and a customer list, they provide a 25 page booklet on construction techniques; both new and existing. The material is very thin, about the same weight and feel as good bond paper. The manufacturer states that this material meets the NSA 65-6 spec using this nonwoven material as the priamary shield. The material is applied just like wall paper, with comercial wallpaper glue, and from a construction point of view this stuff looks like you could do an 8x8x8 romm in a few hours. Alas, I did not recieve a price list on the material, but I am sure it will be a hell-of-a-lot cheaper that buying TEMPEST certified computers, and best of all...you don't have to register a damn thing ;-)). The address is: Veretec Long Meadow Road Tuxedo, New York 10987 (919) 577-7447 Victor Continues: Some words about DES - I spoke with one cryptoanalisyst from KGB and he sow, that for number crypto algotitm c(key, text) (key is keyLength tall) present f(key, text), that for all key1 and key2 present key with length keyLength, that c(key2, c(key1, text))==f(key, text). He also say, that now present f() for c()=des(), more f() wery like des(). That`s why for decrypting of des(k1, des(k2, ... des(kN, text) ... )) we must try 2^56 keys with spetial function. Victor seems to be saying that his friend is saying that DES is a "group" (if I remember my terms correctly), which somebody was supposed to have proven wasn't the case. Although, strictly speaking, a "group" was supposed to be f=des, where Victor just says it's "very like DES." But multiple encryptions as Victor describes are not used. Rather alternating encryptions and DEcryptions. For example triple DES dese(k1, desd(k2, dese(k3, plaintext))) where "dese" is DES encryption and "desd" is DES decryption. What does your friend in the KGB have to say about that, Victor? If triple-DES reduces to any reasonable transformation of (some) 56-bit key then it's almost as easy to break as single-DES which we now know only requires 3 hours on a $1 million specialized machine. Of more interest here, Victor, is what your KGB friend says about the IDEA cipher, RSA Public Key encryption, and the MD5 message digest, all of which are used in PGP. We would also like to know if the KGB has found any weaknesses in PGP or if they've even had occasion to try to find any. -- edgar(a)spectrx.saigon.com (Edgar W. Swank) SPECTROX SYSTEMS +1.408.252.1005 Cupertino, Ca

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Paper Shredders
by an41418＠anon.penet.fi 17 Dec '03

17 Dec '03

What about just burning the paper? ------------------------------------------------------------------------- To find out more about the anon service, send mail to help(a)anon.penet.fi. Due to the double-blind, any mail replies to this message will be anonymized, and an anonymous id will be allocated automatically. You have been warned. Please report any problems, inappropriate use etc. to admin(a)anon.penet.fi.

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double encryption keys
by an41418＠anon.penet.fi 17 Dec '03

17 Dec '03

I would suggest that you use two different hash functions on the pass phrase, and take however many bits you need of what's left over. Wonderer ------------------------------------------------------------------------- To find out more about the anon service, send mail to help(a)anon.penet.fi. Due to the double-blind, any mail replies to this message will be anonymized, and an anonymous id will be allocated automatically. You have been warned. Please report any problems, inappropriate use etc. to admin(a)anon.penet.fi.

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