December 2003 - cypherpunks-legacy

Re: Liberal lawyer joke from Cdn-Firearms Digest V2 #34
by Tim May 17 Dec '03

17 Dec '03

At 2:26 PM -0700 10/16/97, jf_avon(a)citenet.net wrote: >On 16 Oct 97 at 9:58,somebody wrote: > >> Research labs are increasingly replacing rats with lawyers. >> >> There are three reasons for this: >> >> 1. The lawyers are in abundant supply >> 2. The lab workers do not develop any kind of emotional attachment to >>lawyers >> 3. There are things you just can't get a rat to do. Just a word: the "lawyer jokes" sent out recently are at least 10 years old. Calling them "liberal lawyer" jokes doesn't make them any fresher. I suggest original content, in the form of essays or analyses, is better than stale old lawyer jokes. --Tim May The Feds have shown their hand: they want a ban on domestic cryptography ---------:---------:---------:---------:---------:---------:---------:---- Timothy C. May | Crypto Anarchy: encryption, digital money, ComSec 3DES: 408-728-0152 | anonymous networks, digital pseudonyms, zero W.A.S.T.E.: Corralitos, CA | knowledge, reputations, information markets, Higher Power: 2^2,976,221 | black markets, collapse of governments. "National borders aren't even speed bumps on the information superhighway."

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No Subject
by Igor Chudov ＠ home 17 Dec '03

17 Dec '03

test

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index.html
by Jim Choate 17 Dec '03

17 Dec '03

CNN logo Navigation Infoseek/Big Yellow Pathfinder/Warner Bros Main banner rule SECRET SECURITY MESSAGES ON STAMPS CAN BE DECODED Postal Service Logo October 16, 1997 Web posted at: 3:39 p.m. EDT (1939 GMT) WASHINGTON (AP) -- The post office is preserving a bit of nostalgia from an era when children saved cereal box tops for the secret decoder rings. The new decoder isn't a ring, but it does the job by revealing secret messages hidden on some U.S. postage stamps. "It was done primarily as a anti-counterfeit measure, but we knew that collectors of all kinds would enjoy it as an interesting design element as well," said postal spokesman Barry Ziehl. You normally can't see the hidden image, but the post office is selling decoders to interested people. For $4.95 collectors can get a special lens that reveals the hidden message when placed over the stamp. The first hidden image was on a 32-cent U.S. Air Force stamp issued in September. With the decoder, viewers can see the letters USAF repeated over and over across the face of the stamp. The decoder has to be turned slightly from side to side to get the image to appear. Copyright 1997 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. rule Related sites: Note: Pages will open in a new browser window * US Postal Service External sites are not endorsed by CNN Interactive. Barnes and Noble Recommends Selected books on Postage Stamps Or find any book in print by keyword: ____________________ ______ _________________________________________________________________ Infoseek search ____________________ ____ ____ _________________________________________________________________ rule Message Boards Sound off on our message boards You said it... [INLINE] rule To the top © 1997 Cable News Network, Inc. All Rights Reserved. Terms under which this service is provided to you.

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http:--www.cnn.com-TECH-9710-16-internet.subpoena.ap-
by Jim Choate 17 Dec '03

17 Dec '03

CNN logo Navigation Infoseek/Big Yellow Pathfinder/Warner Bros Tech banner Tivoli systems and network management: The power to manage. Anything. Anywhere. Click here. rule SUBPOENA ISSUED FOR DATA BEHIND NEWSPAPER'S WEB SITE website October 16, 1997 Web posted at: 8:40 p.m. EDT (0040 GMT) VENTURA, California (AP) -- In what could be a legal first, the Ventura County Star has been subpoenaed by attorneys in a murder case for information about people who have used the newspaper's Internet site. The defense wants to determine whether the jury pool has been contaminated. The subpoena, which asks for unpublished e-mail and demographics of people who participated in an online survey about the case, explores new territory between legal protections for the media and a defendant's right to a fair trial, said Terry Francke, a media attorney with the California First Amendment Coalition. "This is very new, and I suspect the courts will be grappling with more and more of these types of requests from attorneys as the medium grows," Francke said Wednesday. The Internet site detailed the Diana Haun murder trial. Haun was convicted September 28 of conspiracy, kidnapping and murder in the slaying of Sherri Dally, her lover's wife -- an act prosecutors said was a human sacrifice birthday present. The penalty phase of Haun's trial is scheduled to begin Monday. The subpoena was served this week by James Farley, the attorney for Haun's lover and alleged co-conspirator Michael Dally. His trial is set to begin November 24. Jurors will be bused to Ventura from adjoining Santa Barbara County. The Internet site stretches beyond the newspaper's circulation area in Ventura County, possibly contaminating jury pools in Santa Barbara County, said Len Newcomb, an investigator for Farley. "The media decided to make this a high-profile case and decided they wanted to reach a vast number of people," Newcomb said. "And the worst-case scenario is that we won't be able to find jurors who don't already have strong biases." Newcomb has filed subpoenas on 56 news organizations from Los Angeles to San Luis Obispo, requesting unpublished reader, listener and viewer response to the Haun coverage. The latest subpoena unquestionably invades legally protected discourse between readers and their newspapers, said Timothy J. Gallagher, the Ventura newspaper's editor. "I don't have a problem providing information to defense attorneys that has already appeared in the newspaper, or in this case online, but beyond that there's a privileged relationship between newspapers and readers," Gallagher said. Copyright 1997 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. rule Related sites: Note: Pages will open in a new browser window * Ventura County Star + Subpoena covers new legal ground + Coverage of the Haun murder trial External sites are not endorsed by CNN Interactive. _________________________________________________________________ Infoseek search ____________________ ____ ____ _________________________________________________________________ rule Watch these shows on CNN for more sci-tech stories: CNN Computer Connection | Future Watch | Science & Technology Week rule Message Boards Sound off on our message boards You said it... [INLINE] Tivoli systems and network management: The power to manage. Anything. Anywhere. Click here. rule To the top © 1997 Cable News Network, Inc. All Rights Reserved. Terms under which this service is provided to you.

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Re: Internet Tools For Your Business (fwd)
by Japhy Ryder 17 Dec '03

17 Dec '03

----- Forwarded message from Graham-John Bullers ----- >From real(a)freenet.edmonton.ab.ca Thu Oct 16 21:11:54 1997 Date: Thu, 16 Oct 1997 20:11:33 -0600 (MDT) From: Graham-John Bullers <real(a)freenet.edmonton.ab.ca> To: Japhy Ryder <japhy(a)enteract.com> Subject: Re: Internet Tools For Your Business (fwd) In-Reply-To: <199710162323.SAA00372(a)enteract.com> Message-ID: <Pine.A41.3.95.971016201131.101210a-100000(a)fn2.freenet.edmonton.ab.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII On Thu, 16 Oct 1997, Japhy Ryder wrote: > ----- Forwarded message from prectimes(a)mail2.c-flash.net ----- > > >From prectimes(a)mail2.c-flash.net Thu Oct 16 17:27:18 1997 > From: prectimes(a)mail2.c-flash.net > Message-Id: <199710162227.RAA18064(a)enteract.com> > Date: Thu, 16 Oct 1997 11:17:49 -0400 (EDT) > Subject: Internet Tools For Your Business > > **************************************************************************** > We sincerely apologize if this message has reached you > in error. 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I understand that if I am not completely staisfied > I will have the total purchase price of $15 refunded > to me upon request within 30 days from purchase. > > Name_________________________________ > > Address_______________________________ > > City, State, Zip___________________________ > > Telephone# (______)____________________ > > E-mail Address__________________________ > > Check here if you would like to receive information > about our other products ( ) > > Send your check or money order for $15 to: > > Precious Times Publications > 18551 Chase Street > Northridge, California 91324 > > If you have any questions, don't hesitate > to contact us at Tel: (818)-885-1823 or > Fax: (818)-885-8014 > > > > > > > > ----- End of forwarded message from prectimes(a)mail2.c-flash.net ----- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Graham-John Bullers Moderator of alt.2600.moderated ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ email : <real(a)freenet.edmonton.ab.ca> : <ab756(a)freenet.toronto.on.ca> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http://www.freenet.edmonton.ab.ca/~real/index.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ----- End of forwarded message from Graham-John Bullers -----

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No Subject
by Japhy Ryder 17 Dec '03

17 Dec '03

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Re: (fwd) Import restrictions for crypto code
by alexlh＠xs4all.nl 17 Dec '03

17 Dec '03

On Fri, 17 Oct 1997, Alex Le Heux wrote: [snip] > ps. Lucky - what became of the "Brain"? Brian didn't come back to the US with Lucky as he wanted to develop strong crypto applications and did not want to have to contend with export restrictions. He currently has a desk in the offices of a major Dutch ISP, XS4ALL, so he is nice and close to the backbone and thus has great connectivity. Cheerio, Alex --- I dabble in techno-house and sometimes, I do that badass hip-hop thang... But the F U N K gets me every time!

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by web-promotions＠nevwest.com 17 Dec '03

17 Dec '03

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Marutukku - cryptographic filing system
by Julian Assange 17 Dec '03

17 Dec '03

Marutukku (my cryptographic file system/block device) is due for first beta sometime next week. Before release, I'd like some (strong!) criticism of the sub key generation / chaining techniques I'm using. But first, for those who haven't a frigging clue what Marutukku is, here is a hastily drawn non-cryptographic (more about that later) features list: o OS independent (excepting two files pertaining only to the kernel drivers) o Currently implemented as a 4.4bsd (Free/Net/OpenBSD) loadable kernel module, and client (I have someone working on the Linux port, but no promises). o The BSD implementation turns a file (even an NFS mounted file) into a device, on which any number of file systems types can be created in the regular manner (or even a swap partition ;) o Endian independent - Marutukku extents (the ciphertext regions) can be mailed around like .tar files o various backup/recovery/whole extent encryption/decrypt functions built into the client Marutukku supports a variety of ciphers, and the cipher used for the lattice (which is used to generate sub-keys for each file-system block) generation is independent from the cipher used for block functions. At the moment it only makes sense to talk of the lattice generator in terms of a stream cipher or a block cipher/hash algorithm in OFB. My design principles along the way have attempted as far as possible to cover as yet unknown vulnerabilities in the under-laying ciphers used with good management of IV's, salts, sub-keys, chaining etc. Some of these steps may pose no additional security in relation to certain attacks (i.e secret vs public IV's) on particular ciphers but most come at little cost compared to the encryption itself. Primary key/salt generation walk though: A pass-phrase of size (l) is requested from the user. max_keysize (256) public random key saltation bytes are generated and [saved]. (l) of these bytes then salt the key (XOR) (we don't use more than (l) to avoid any potential issues with key-correlation attacks as the salt is public). max_keysize cryptographically random bytes are produced to form the "master key". The salted pass-phrase is used to encrypt the master key, which is [saved]. The (unencrypted) master key is used to key a stream cipher (in this case that's rc4 or rc16) which is used for further key generation. Bytes [0] and [1] of the key stream output are saved for later use in creating a pass-phrase checksum (more about that later). Bytes [2] and [3] of the key stream are saved for later use in encrypting the number of stream-cipher key-generator iterations. The stream cipher is then set to stir its internal state for (t) seconds (a user supplied value). The number of iterations (i) is counted, the two LSBytes's from which are encrypted with [2] and [3] and [saved]. The reason we don't encrypt the MSB's is that they are are likely to be known-plain-text (all 0 bits to the left) which can be used for key-scanning checks. This has the annoying effect of reducing the uncertainty in the iteration count to 2^16, but I can't fathom a way around it without exposing bits of the stream output. Stream bytes [3+i] and [3+i+1] are XOR-ed with bytes [0] and [1] to provide a 16 bit key checksum and [saved]. The distance here serves to obfuscate any predictability in the key-stream generator and force the attacker though all (i) iterations to test each key (or if they are attacking directly on the internal state of the stream cipher at (i) to generate guesses at [0] as well). A public random key-salt for the two primary lattice keys are generated and [saved]. n * 2 (n=32 for a 4G file-system-block maru extent) public random sub-key lattice IV's are generated and [saved]. The public master block IV array salt is randomly generated and [saved]. Instance/Lattice generation: The saved maru saltation/IV header (above) is loaded, and the the pass-phrase is salted as before. The master key is decrypted and the key stream cipher is initialised, half the checksum is generated, the number of iterations decrypted, the generator stired, the other half of the checksum is generated and the checksum verified. The two primary lattice salts are encrypted with the key stream stream and form the primary lattice keys for the lattice fs-block sub-key generating block cipher. The n*2 lattice sub-key IV's are encrypted with the stream and form the lattice sub key array. The master block IV salt array is encrypted with the stream and forms the master block IV array. This ends the primary initialisation stage. Block key generation: The problem here is to turn a block number into a unique "sub-key" for each fs-block in such a way that frustrates possible key (or other) correlation attacks. i.e discovering the key for one block should not help the cryptanalyst in discovering the key for any other block. It is simple to generate a sub-key key-stream with a stream cipher or a block cipher operating in OFB, but storing such a construct is untenable and it is not efficient to generate on the fly (for instance, the first fs-block accessed might be the last in the maru extent, which would correlate to the last sub-key generated by the key-stream). The solution designed and employed is a binary tree based key generation approach, that can generate a cryptographically-unique block key in log2(max_blocks) steps. The author has thought of various variations on this scheme (e.g with two different cryptographic hashes, one moving left, one moving right), but see below for the variant used in Marutukku. It is simpler to visualise the sub-key generator tree "turned inside out" as a 2d lattice, two columns across and n rows down (this is also how it is implemented in Marutukku). i.e ______________________ |LEFT | RIGHT| |----------+----------| |L-SUBKEY 0|L-SUBKEY 1| |----------+----------| |L-SUBKEY 1|L-SUBKEY 2| |----------+----------| | .... | .... | |----------+----------| |L-SUBKEY n|L-SUBKEY n| |__________|__________| The journey from fs-block number to fs-block-key starts with the msb of the block number and the top of the lattice (we use the msb rather than the lsb for caching reasons. Using the lsb naively seems more secure but uncacheable, yet on closer examination, neither of theses claims are true (however the Marutukku lattice sub-key cache *performance* using lsb is poor due to the inverted clustering)). As each bit slides off the left of the block number, key material is picked up from the left or right of the lattice according to whether the bit is on or off. Each lattice sub-key chosen is encrypted with the next (CBC wise, but lattice sub-key size, rather than cipher block size) at the top of the lattice and twines it's way down to the end, collecting key-material as it goes. The result is a unique compressed (i.e its the CBC chaining performing the compression) "necklace" of key material which forms the appropriate fs-block key. FS block encryption: Each plain text block in the fs-block is XOR-ed with the corresponding entry in the master block IV array and then CBC encrypted. In effect, each cipher block has two IV's. The first block, which lacks any cipher text from previous blocks to chain with, uses the block number XOR-ed with its master block IV entry. The rational behind this is that we have the benefits of CBC's error-recovering abilities without it's major drawback (and it is certainly not alone here among major block cipher modes) - that is, find the key for (cipher) block 0 and the attacker can successfully decrypt every other block that (CBC wise) follows it. Comments? -- Prof. Julian Assange |If you want to build a ship, don't drum up people |together to collect wood and don't assign them tasks proff(a)iq.org |and work, but rather teach them to long for the endless proff(a)gnu.ai.mit.edu |immensity of the sea. -- Antoine de Saint Exupery

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by biqa＠uspacmall.com 17 Dec '03

17 Dec '03

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