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	Dining cryptographers protocol/Rewrite - Wikipedia, the free encyclopedia
		They speculate that the payer might be one of the cryptographers in the party, but then they realize that the dinner may have been paid for by the National Security Agency, their employer.
		The ageing cryptographers protocol allows for every member of a group to contribute inputs to a function that can be calculated by all members of the group.
		The voting cryptographers protocol is similar to the ageing cryptographers protocol.
	en.wikipedia.org /wiki/Dining_cryptographers_protocol/Rewrite (1096 words)

	Dining cryptographers protocol - Wikipedia, the free encyclopedia
		The dining cryptographers protocol is a method of anonymous communication.
		The method is as follows: two or more cryptographers (nodes) arrange themselves around a circular dinner table (ring network), with menus (encrypted links) hiding the interaction of each pair of adjacent cryptographers from the rest.
		Then each cryptographer announces publicly the difference between the number on his right and the number on his left, adding a message if he wants to transmit one.
	en.wikipedia.org /wiki/Dining_cryptographers_protocol (187 words)

	Dining Cryptographers Protocol
		Dining Cryptographers Problem: Unconditional Sender and Recipient Untraceability” was published in the Journal of Cryptology.
		Each cryptographer then states aloud whether the two coins he can see—the one he flipped and the one his left-hand neighbor flipped—fell on the same side or on different sides.
		The protocol could also be used in conjunction with a digital cash system, like those designed by Dr. Chaum and his colleague Stefan Brands, for untraceable financial transactions, bringing what novelist Thomas Pynchon called “organic markets, carefully styled ‘fl’ by the professionals”—or perhaps even the intriguing proposals of Jim Bell—to the agora of cyberspace.
	www.nyx.net /~awestrop/crypt/dc.htm (669 words)

	Learn more about Cryptography in the online encyclopedia. (Site not responding. Last check: 2007-10-08)
		Cryptography, and its misuse, was involved in the plotting which led to the execution of Mata Hari and even more reprehensibly in the travesty which led to Dreyfus' conviction and imprisonment, both in the early 20th century.
		By World War II mechanical and electromechanical cryptographic cypher machines were in wide use, although where these were impractical manual systems continued to be used.
		Prior to that time, all useful modern encryption algorithms had been symmetric key algorithms, in which the same cryptographic key is used with the underlying algorithm by both the sender and the recipient who must both keep it secret.
	www.onlineencyclopedia.org /c/cr/cryptography_1.html (4042 words)

	Expressing Security Protocol Goals (Site not responding. Last check: 2007-10-08)
		The cryptographers would like to know whether it is one of them who is paying, or whether it is their organization that is paying; but they also wish to retain anonymity concerning the identity of the payer if it is one of them.
		If a cryptographer is not paying then she will say that they agree if the results on the coins are the same, and that they disagree if the results differ; a paying cryptographer will say the opposite.
		The protocol is modelled in CSP as the parallel combination of cryptographers and coins, and a master process dictating who pays, as illustrated in Figure 3.10.
	www.awprofessional.com /articles/article.asp?p=101192&seqNum=5 (1991 words)

	Fred Cohen & Associates (Site not responding. Last check: 2007-10-08)
		Cryptographic protocols have only recently come under intensive study, and as of this time, they are not sufficiently well developed to provide a great deal of assurance.
		A typical cryptographic protocol failure is encountered in the use of the RSA [Jonge85].
		Cryptographic techniques are widely used to assure that intentional or accidental modification of transmitted information does not cause erroneous actions to take place.
	all.net /books/ip/Chap2-4.html (2818 words)

	Expressing Security Protocol Goals (Site not responding. Last check: 2007-10-08)
		Protocols are designed to achieve particular security properties in the presence of particular kinds and levels of threat.
		Alternatively, protocols might be designed for protection against an external intruder, but might rely on the assumption that all principals are honest.
		Although claims are often expressed in anthropomorphic terms, concerning the state of mind of the protocol agent, or particular beliefs of the agent, we will express protocol requirements purely in terms of relationships between these events.
	www.awprofessional.com /articles/article.asp?p=101192&seqNum=5 (1222 words)

	The Free Information Society - A Glossary of Cryptography Terms (Site not responding. Last check: 2007-10-08)
		The blob is a cryptographic primitive for this.
		Named after the "dining philosophers" problem in computer science, participants form circuits and pass messages in such a way that the origin cannot be deduced, barring collusion.
		Modern cryptology is mostly about the study of protocols for many problems, such as coin-flipping, bit commitment (blobs), zero knowledge proofs, dining cryptographers, and so on.
	www.freeinfosociety.com /computers/cryptography/glossary.html (3897 words)

	Dining Cryptographers Nets--An Introduction (Site not responding. Last check: 2007-10-08)
		The solution presented here is unconditionally or cryptographically secure, depending on whether it is based on one-time-use keys or on public keys.
		Chaum describes some "dining cryptographers," which I will playfully change to "dining Extropians." (The term is of course a variant of the seminal "dining logicians problem" in computer science) Three Extropians are having dinner, perhaps in New York City.
		Since the lists are essentially one-time pads, the protocol is unconditionally secure, i.e., no assumptions are made about the difficulty of factoring large numbers or any other crypto assumptions.
	cypherpunks.venona.com /date/1993/02/msg00350.html (1787 words)

	totse.com \| The Dining Cryptographers Problem
		To see why the protocol is unconditionally secure if carried out faithfully, consider the dilemma of a cryptographer who is not the payer and wishes to find out which cryptographer is. (If NSA pays, there is no anonymity problem.) There are two cases.
		In case (2) the coins he sees are different; if both other cryptographers said "different," then the payer is closest to the coin that is the same as the hidden coin; if both said "same," then the payer is closest to the coin that differs from the hidden coin.
		They devise a way to do this at the table for a statement of arbitrary length: the basic protocol is repeated over and over; when one cryptographer wishes to make a message public, he merely begins inverting his statements in those rounds corresponding to 1 's in a binary coded version of his message.
	www.totse.com /en/privacy/encryption/chaum.html (4782 words)

	Dining cryptographers protocol/Rewrite - Encyclopedia Glossary Meaning Explanation Dining cryptographers ... (Site not responding. Last check: 2007-10-08)
		Dining cryptographers protocol/Rewrite - Encyclopedia Glossary Meaning Explanation Dining cryptographers protocol/Rewrite.
		cryptographers sitting around a circular table, so for convenience they shall be numbered
		random bits are chosen among all adjacent pairs of cryptographers.
	www.encyclopedia-glossary.com /en/Dining-cryptographers-protocolRewrite.html (986 words)

	[freehaven-dev] DC-nets
		first draft, \section{Dining Cryptographers as an Anonymous Channel} The Dining Cryptographers protocol was introduced by David Chaum as a means of guaranteeing untraceability for the sender and receiver of a message, even against a computationally all-powerful adversary\cite{}.
		The original protocol assumes a reliable broadcast channel; the protocol consists of a series of "superimposed sendings" in which a total of $n$ participants send messages which eventually "add up" to give the final message, which seems to appear out of thin air for the final receiver.
		Their protocol maintains the unconditional sender and recipient untraceability of Chaum's protocol, but removes the need for a reliable broadcast channel by implementing reliability via Byzantine Agreement.
	archives.seul.org /freehaven/dev/May-2000/msg00043.html (749 words)

	Dining Chairs (Site not responding. Last check: 2007-10-08)
		Toward the beginning of the 18th Century, a pattern emerged where the ladies of the house would withdraw after dinner from the dining room to the drawing room, while the gentlemen would remain in the dining room having drinks.
		A typical North American dining room will contain a table with chairs arranged along the sides and ends of the table, as well as other pieces of furniture, (often used for storing formal china), as space permits.
		In modern American homes, the dining room is increasingly used only for formal dining with guests or on special occasions.
	www.wwwtln.com /finance/62/dining-chairs.html (892 words)

	Category:Cryptographic protocols - Wikipedia, the free encyclopedia
		Cryptographic protocols are communication protocols which are designed to provide security assurances of various kinds, using cryptographic mechanisms.
		Classic assurances include confidentiality, message integrity, and more recent research includes anonymity assurances.
		The term "protocol" is used in a wide sense, to include off-line arrangements such as encryption of e-mail messages.
	en.wikipedia.org /wiki/Category:Cryptographic_protocols (86 words)

	Dining cryptographers protocol - Encyclopedia Glossary Meaning Explanation Dining cryptographers protocol (Site not responding. Last check: 2007-10-08)
		Dining cryptographers protocol - Encyclopedia Glossary Meaning Explanation Dining cryptographers protocol.
		Here you will find more informations about Dining cryptographers protocol.
		The orginal Dining cryptographers protocol article can be editet
	www.encyclopedia-glossary.com /en/Dining-cryptographers-protocol.html (221 words)

	The Dining Cryptographers Problem
		To see why the protocol is unconditionally secure if carried out faithfully,consider the dilemma of a cryptographer who is not the payer and wishes tofind out which cryptographer is. (If NSA pays, there is no anonymity problem.)There are two cases.
		In case (1) the two coins he sees are the same, one ofthe other cryptographers said "different," and the other one said "same." Ifthe hidden outcome was the same as the two outcomes he sees, the cryptographerwho said "different" is the payer; if the outcome was different, the one whosaid "same" is the payer.
		In case (2) the coins he sees are different; if bothother cryptographers said "different," then the payer is closest to the cointhat is the same as the hidden coin; if both said "same," then the payer isclosest to the coin that differs from the hidden coin.
	www.cs.cornell.edu /People/egs/615/dcnets.html (4713 words)

	Dining cryptographers protocol
		The dining cryptographers protocol is a method of anonymous transmission.
		The method is as follows: At least three cryptographers arrange themselves around a circular dinner table, with menus hiding the interaction of each pair of adjacent cryptographers from the rest.
		The text of this article is licensed under the GFDL.
	www.ebroadcast.com.au /lookup/encyclopedia/di/Dining_cryptographer.html (160 words)

	Dining cryptographers protocol (Site not responding. Last check: 2007-10-08)
		The method is as follows: two or more cryptographers arrangethemselves around a circular dinner table, with menus hiding the interaction of each pair of adjacent cryptographers from therest.
		Then each cryptographer announces publicly the difference between thenumber on his right and the number on his left, adding a message if he wants to transmit one.
		If the sum is invalid, more than one cryptographer tried to transmit a message; they wait a random time and tryagain.
	www.therfcc.org /dining-cryptographers-protocol-274238.html (151 words)

	Citations: The Dining Cryptographers Problem: Unconditional Sender and Recipient Untraceability - Chaum (ResearchIndex) (Site not responding. Last check: 2007-10-08)
		It is based on the Dining Cryptographers Problem proposed by Chaum [11] In a DC Net, each participant shares a secret coin flip with every other....
		The size of the anonymity set re ects the fact that even though a participant in a Dining Cryptographers network may not be directly identi able, the set of other participants that he or she may be confused with, can be....
		In this paper, we present a new protocol for providing anonymous communication on the Internet called Hordes, which provides a level of comparable anonymity to recent protocols [27, 28] while reducing the amount of....
	citeseer.ifi.unizh.ch /context/143887/0 (2842 words)

	Dining cryptographers protocol -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-08)
		Dining cryptographers protocol -- Facts, Info, and Encyclopedia article
		The dining cryptographers protocol is a method of (Click link for more info and facts about anonymous) anonymous communication.
		The method is as follows: two or more (Decoder skilled in the analysis of codes and cryptograms) cryptographers arrange themselves around a circular dinner table, with menus hiding the interaction of each pair of adjacent cryptographers from the rest.
	www.absoluteastronomy.com /encyclopedia/D/Di/Dining_cryptographers_protocol.htm (192 words)

	CSE 597: Quizzes (Site not responding. Last check: 2007-10-08)
		Does the protocol that we have seen for the case of 3 cryptographers still work for the general case, possibly with some adaptations?
		In fact, if no cryptographers is paying, than all of them say "the truth" about the agreement/disagreement of the coins, hence the number of "disagree" will be even.
		If one of cryptographers is paying, than he says the opposite, hence the number of "disagree" will be odd.
	www.lix.polytechnique.fr /~catuscia/teaching/cg597/01Fall/quizzes/S2.html (403 words)

	The Dining Cryptographers Protocol (Site not responding. Last check: 2007-10-08)
		Cort mentioned the Dining Cryptographers, and since many of you have joined the list since I last posted this, I thought I'd post it again.
		The full version of David Chaum's paper on the Dining Cryptographers is at the ftp.csua.berkeley.edu site in pub/cypherpunks.
		> >Chaum describes some "dining cryptographers," which I will playfully change >to "dining Extropians." (The term is of course a variant of the seminal >"dining logicians problem" in computer science) > >Three Extropians are having dinner, perhaps in New York City.
	cypherpunks.venona.com /date/1994/07/msg00398.html (1773 words)

	The Free Haven Project
		ZKS uses a protocol of issuing serial numbers, which are reclaimed for nym tokens, which in turn are used to anonymously purchase nyms.
		The Dining Cryptographers protocol was introduced by David Chaum[#!chaum-dc!#] and later improved by Pfitzmann and Waidner as a means of guaranteeing untraceability for the sender and receiver of a message, even against a computationally all-powerful adversary.
		If we were to do so, we might consider running a dining cryptographer protocol using Mixes to hide the legal identity of each participant.
	www.freehaven.net /related-comm.html (4668 words)

	Kerberos (protocol) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-08)
		Kerberos is a ((computer science) a network of computers) computer network (Validating the authenticity of something or someone) authentication ((computer science) rules determining the format and transmission of data) protocol which allows individuals communicating over an insecure network to prove their identity to one another in a secure manner.
		The Protocol was named after the (Click link for more info and facts about Greek mythological) Greek mythological character (Click link for more info and facts about kerberos) kerberos (or cerberus), known in Greek Mythology as being the monstrous three-headed hound dog of hades.
		One can specify the protocol as follows in (Click link for more info and facts about security protocol notation) security protocol notation, where (Click link for more info and facts about Alice) Alice (A) authenticates herself to Bob (B) using a server S:
	www.absoluteastronomy.com /encyclopedia/K/Ke/Kerberos_(protocol).htm (1152 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		It works as follows: A number of cryptographers are dining at a circular table.
		The bill has been paid." The cryptographers now have the problem of working out whether someone at the table paid the bill, or whether the NSA has paid it as some sort of veiled threat.
		It is a very slightly different protocol to that implemented here, but the result is the same.
	ftp.isu.edu.tw /pub/CPAN/authors/id/S/SH/SHEVEK/Crypt-Dining-1.01.readme (467 words)

	►► Different Dining ◄◄
		See live article Dining cryptographers protocol The dining cryptographers protocol is a method of anonymous transmission.
		Then each cryptographer announces publicly the difference between the number on his right and the number on his left, adding a message if he wants to...
		Dining flies are not intended to be used to shelter people.
	www.riotiym.com /23/30.html (2251 words)

	Topics in cryptography - Wikipedia, the free encyclopedia
		GCHQ internal evaluation/selections (surely extensive, nothing is publicly known of the process or its results for GCHQ use; a division of GCHQ is charged with developing and recommending cryptographic standards for the UK government)
		SSH (Secure SHell implementing cryptographically protected variants of several common Unix utilities, First developed as open source in Finland by Tatu Ylonen.
		There is now OpenSSH, an open source implementation supporting both SSH v1 and SSH v2 protocols.
	en.wikipedia.org /wiki/Topics_in_cryptography (1372 words)

	Cyphernomicon 19.4: Appendix -- Glossary (Site not responding. Last check: 2007-10-08)
		Alice and Bob -- crypographic protocols are often made clearer by considering parties A and B, or Alice and Bob, performing some protocol.
		coin flippping -- an important crypto primitive, or protocol, in which the equivalent of flipping a fair coin is possible.
		DC protocol, or DC-Net -- the dining cryptographers protocol.
	andercheran.aiind.upv.es /toni/cripto/cyphernomicon/chapter19/19.4.html (4069 words)

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