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Topic: Fish ciphers

	SSH - Support - Cryptography A-Z - Algorithms - Secret Key Cryptosystems
		Fish was used by the German army in WWII to encipher high-command communications.
		Modern block ciphers can be seen as a variant of this idea, in the sense that they try hide the message under a very large alphabet that depends on the key.
		In the block cipher case the permutation is generated by the secret key and the key space might not cover all the possible permutations.
	www.ssh.fi /support/cryptography/algorithms/symmetric.html (3707 words)

	New Page 1 (Site not responding. Last check: 2007-11-04)
		Stream ciphers encrypt plaintext one byte or one bit at a time and can be thought of as a block cipher with a really small block size.
		A stream cipher generates what is called a keystream and encryption is provided by combining the keystream with the plaintext, usually with the bitwise XOR operation.
		Current interest in stream ciphers is most commonly attributed to the appealing theoretical properties of the one-time pad, but there have been, as of yet, no attempts to standardize on any particular stream cipher proposal as has been the case with block ciphers.
	c.1asphost.com /wvtechs/security_6.htm (3701 words)

	Tidepool \| Features
		But researchers have calculated that the actual advantage for the barged fish is closer to 10 or 20 percent, suggesting that barged fish die in greater numbers later.
		Some speculate that the fish contract diseases from each other, or that the chinook are stressed by the larger steelhead that share the ride with them.
		In an effort to provide barged fish the same opportunity, the barges are plumbed to take in river water throughout the journey and to circulate it through the fish holds.
	www.tidepool.org /original_content.cfm?articleid=161982 (1817 words)

	Jamie Delano - As Time Goes By
		Fish diseases were researched, expensive remedies purchased and poured, libations to the piscine gods.
		The fish languished on: The beast of adolescence howled around the stockade, jangling our nerves; occasionally -- with a slavering and desperate scrabbling of claws -- clambering our stout stockade of reason, breathing the blood-breath on us and infecting us with rage.
		The rage of adolescence evolved into the mature hopeful anger of a man… but the fish ghost still shines in the depths at night when the moon is full, and the pleasures of the pond will never be innocent now.
	www.jamiedelano.co.uk /smokeroommain.asp?offset=5 (847 words)

	[No title] (Site not responding. Last check: 2007-11-04)
		Typically the cipher is used in a chained mode, with all packets chained together as if it was a single data stream (the length field is never included in the encryption process).
		The key for the first cipher is taken from the first 8 bytes of the session key; the key for the next cipher from the next 8 bytes, and the key for the third cipher from the following 8 bytes.
		Separate ciphers are used for dif- ferent directions (that is, both directions have separate initializa- tion vectors or other state for the ciphers).
	www.free.lp.se /fish/rfc.txt (10873 words)

	Now Is The Time For A Distributed Fish Tank.
		Fish will swim back and forth in the tank, but our special twist also allows fish to swim through a network to tanks running on other user's machines.
		The use of the term "fish" here is in the objective sense; as mentioned, a "fish" is a generic specification for how specific types of fish should act.
		Our fish could also be used to "play games." Each branch of the state-space would be distributed to different fish and as the server runs the alpha-beta routine, new fish would be instructed to investigate different possible outcomes.
	www.trachtenberg.com /fish/marketresearch.html (3101 words)

	[No title]
		And in particular it would be impossible because each of the Enigma and the Fish were used by the Germans as the basis not merely for one cipher each, not merely one Enigma and one Fish, but as the basis for a wide range of different ciphers, each cipher having its different key.
		It was a very valuable cipher for shipping in relation to North African operations but it wasn't a cryptanalytical problem of the kind I have been describing in the case of the German ciphers.
		They used book ciphers, and ironically we couldn't read the Italian book ciphers for the army, the navy and the airforce after they brought new ones in between June and November 1940 preparatory to or as a consequence of their own entry into the war.
	www.und.nodak.edu /org/crypto/crypto/general.crypt.info/ultra.txt (6640 words)

	The Effect of the First Computers on History
		The second, the so-called FISH machines, resembled teleprinters and were used only for the highest grade communications, usually between Berlin and the headquarters of various Army Groups.
		FISH traffic was initially broken by hand, then later on a machine called 'Heath-Robinson' which consisted of about 30 valves and performed high-speed comparisons of two paper-tapes on which characters were represented by perforations.
		What is known is that the FISH traffic contained the most vital secrets of the German High Command and that without Colossus the Allied penetration of the FISH ciphers could not have occurred in the abundance in which it did.
	www.ellsbury.com /ultrafirstcomputers.htm (1412 words)

	Bletchley Park Code Breaking (Site not responding. Last check: 2007-11-04)
		Ciphers were tapped out on machines, which resembled typewriters, in order to send messages to remote locations in code.
		It was developed to break the "Fish" ciphers used by the German High Command, using Lorenz ciphering machines, which were more complicated than the Enigma Machines.
		He was immediately put on the task of interpreting the so-called "Fish" traffic, which was the communications between the German High Command and its Field Commanders, including Berlin to Paris, Berlin to Oslo and Berlin to Tunis.
	www.aquq77.dsl.pipex.com /swehs/docs/news16su.html (1542 words)

	FISH (cipher) - Wikipedia, the free encyclopedia
		The FISH (FIbonacci SHrinking) stream cipher is a fast software based stream cipher using Lagged Fibonacci generators, plus a concept from the shrinking generator cipher.
		FISH is quite fast in software and has a huge key length.
		However, in the same paper where he proposed Pike, Ross Anderson showed that FISH can be broken with just a few thousand bits of known plaintext.
	en.wikipedia.org /wiki/FISH_(cipher) (141 words)

	Issued Fish Page 883
		A typical serving size of fish is from 3 to 6 ounces.
		The new highly purified Omega Rx ultra refined fish oil is pharmaceutical grade and more concentrated free of dangerous toxins and has been clinically tested with encouraging results.
		Therefore North Carolina advises that most people limittheir consumption of these fish as well as the four saltwater fish and thatwomen of childbearing age and children not eat them at all.
	www.freescreensaverszone.com /Fish/883.html (401 words)

	Fish (cryptography) - Wikipedia, the free encyclopedia
		For the (Fibonacci Shrinking) stream cipher published in 1993, see FISH (cipher).
		Fish (sometimes FISH) was the Allied codename for any of several German teleprinter stream ciphers used during World War II.
		Cipher A. Deavours and Louis Kruh, Mechanics of the German Telecipher Machine (also reprinted in Cryptology: Yesterday, Today and Tomorrow)
	en.wikipedia.org /wiki/FISH_(cryptography) (212 words)

	The Illusion of Security
		Symmetric ciphers are used millions of times a day, and they do have an impact on theft and compromise, therefore they must be doing there job.
		The more often a cipher is used, the more ciphertext is available for analysis, and the greater the value of the information protected by that cipher.
		But to verify the cipher, I think it is vital that we have an open system specification in which we can replace the existing cipher with what we could obtain if we could compile source code.
	www.ciphersbyritter.com /NEWS5/ILLUSSEC.HTM (17655 words)

	PSEUDO RANDOM LONG KEY GENERATORS (Stream Ciphers) (Site not responding. Last check: 2007-11-04)
		In a stream cipher one generates a key which is as long as the plain message.
		Each binary digit in the message is encrypted through a function which reads a corresponding binary digit within the key, and also takes into account additional information contained in the plaintext, in the emerging ciphertext, and within the rest of the key.
		Stream ciphers are popular in military circles, and most system in use, are non in the public domain.
	www.tryagain.com /infocomm/prndgenr.htm (158 words)

	Indian Art 1
		Oannes, the Chaldean savior (borrowed from the Brahmins), is depicted with the head and body of a fish, from which his human form protrudes at various points.
		The mysterious Greek name of Jesus, ICq¡S, means "a fish." The fish was accepted as a symbol of the Christ by a number of early canonized church fathers.
		Augustine likened the Christ to a fish that had been broiled, and it was also pointed out that the flesh of that Fish was the food of righteous and holy men.
	www.prs.org /gallery-indian.htm (313 words)

	Blowfish Clock News \| Blowfish Clock Data (Site not responding. Last check: 2007-11-04)
		Eats a bad piece of blow fish, he is supposedly poisoned and before he succumbs to the blow fish poison.
		The blow fish algorithm is a symmetric block cipher that can be used as a drop in replacement of clock cycles per byte encrypted.
		Issue is the evil blow fish also known as puffer, globe fish eating the honorable fugue is the ideal.
	www.blowfishresearch.info /blowfish-clock.html (782 words)

	blowfish vs two fish - TechIMO Forums
		Well, the terminology might get a bit confusing, but here it goes: If the ciphers being used are "public-key ciphers" then it's more desireable to have a higher bit (512 or 1024 is recommended) cipher.
		And if anyone brakes/decodes the cipher, they can easily decrypt the encrypted data, no matter how good the encryption was.
		I don't know the formula for calculating the possibilites of a public-key cipher but I know you have to factor in the encryption bit and the composite number encoded in the bits.
	www.techimo.com /forum/t139370.html (418 words)

	blowfish Man Page (Site not responding. Last check: 2007-11-04)
		This library implements the Blowfish cipher, which was invented and described by Counterpane (see http://www.counterpane.com/blowfish.html).
		Blowfish is a block cipher that operates on 64 bit (8 byte) blocks of data.
		Blowfish is currently one of the faster block ciphers.
	www.mediacollege.com /cgi-bin/man/page.cgi?section=3&topic=blowfish (462 words)

	Compare Prices and Read Reviews on Codebreakers: The Inside Story of Bletchley Park at Epinions.com
		By the end of the war, BP had broken almost all enemy ciphers and codes, including the formidable German mechanical encryption machines Enigma and Fish, and intercepted and decoded thousands of critical enemy messages that changed the course of the war.
		PART THREE is about the Fish, the lesser known but (at least as far as the Germans believed) more secure encryption system that was used code the most critical communications between the German headquarters and commanders in the field.
		This cipher system can be considered to be the father of many of the systems that are in use, however, it was also eventually broken by the BP team.
	www.epinions.com /content_93493694084 (930 words)

	Colossus and the breaking of the wartime "fish" codes Cryptologia - Find Articles (Site not responding. Last check: 2007-11-04)
		With the rest of the new class I was soon held in thrall by our instructor, a certain Captain Cheadle, and by the fl arts of codes and ciphers.
		He was on a mission to recruit for the new section that was being formed by Ralph Tester to follow up John Tiltman's and William Tutte's successive coups.
		The hope was that breaking and reading Fish traffic could be placed on a regular basis.
	www.findarticles.com /p/articles/mi_qa3926/is_200201/ai_n9037964 (1056 words)

	Dark Matter Science - Science News and Commentary (Site not responding. Last check: 2007-11-04)
		Over 200 scientists working for the U.S. Fish and Wildlife Service say they have been told to ALTER their findings in order to lessen protection for endangered plants and animals.
		Most of the researchers surveyed knew of cases in which scientific data was intentionally stifled as a result of pressure from timber, grazing, development and energy companies.
		These findings were met with disdain from Fish and Wildlife officials, who had instructed employees not to participate in the survey.
	www.darkmattermag.com /blog/science.php (1293 words)

	My resignation (Site not responding. Last check: 2007-11-04)
		Next message: Good bye and thanks for all the fish (was some drivel about children throwing toys out of the 'pram)
		The actual implementation does not contain primitive ciphers such as character-substitution and when a new cipher obsoletes an old one, the code for the old one is removed and replaced with code for the new one.
		The textbook on the other hand starts by presenting primitive ciphers and when new ciphers are invented, chapters are added but the chapters about the old ciphers are not removed.
	www.linuxfromscratch.org /pipermail/lfs-dev/2004-July/047533.html (810 words)

	Dan Younger's remarks
		Moreover, Fish was used for high level communications between Berlin and the field commanders.
		Tutte's great contribution was to uncover, from samples of the messages alone, the structure of the machines which generated these codes.
		This man-machine combination was used to break Fish codes on a regular basis throughout the remainder of the War.
	www.math.uwaterloo.ca /CandO_Dept/William_Tutte/Canmath.shtml (2304 words)

	WW II Codes and Ciphers
		Fish Notes by Captain Walter Fried describing in great detail the work of the Newmanry and Testery in Bletchley Park on breaking the Fish codes, Tunny (Lorenz) and attempting to break Sturgeon (Siemans).
		It gives the complete story of how the Lorenz cipher was broken, from the amazing breakthrough of 30 August 1941 up to the extremely sophisticated programming of the Colossus.
		This document gives a complementary account of the breaking of the Lorenz ciphers through the use of Colossus, as reported at the time by an American cryptanalyst attached to Bletchley Park.
	www.codesandciphers.org.uk (780 words)

	Blowfish Coloring Picture Content \| Blowfish Coloring Picture Articles (Site not responding. Last check: 2007-11-04)
		Using symmetrical ciphers blow fish, cast, ghost, RC include Miltie language syntax coloring, macros, unlimited undo redo only smart picture allows a picture to be worth more than a.
		Thomas the ocean, where angler fish, blow fish, mackerel and manatees are.
		Also called puffer fish and fugue, this color the picture and answer the questions about the amazing life.
	www.blowfishresearch.info /blowfish-coloring-picture.html (934 words)

	[No title] (Site not responding. Last check: 2007-11-04)
		In fact, that success was with the naval and air force versions; the army version of Enigma proved to be more resistant to analysis.
		Since they could not always read army Enigma, they tried to read the machine-cipher named FISH, which was used only by the army High Command.
		Tutte's great contribution was to uncover, from samples of the messages alone, the structure of the machines that generated these FISH ciphers.
	www.math.uwaterloo.ca /navigation/news/Tutte.html (512 words)

	Alan Turing Scrapbook - The Electronic War
		Although the Enigma was used for all standard German communications, another quite different type of cipher machine the Lorenz, was used at the highest level for strategic commands.
		Fish and I. It includes the specific method (called 'Turingismus') for breaking Lorenz ciphers that Alan Turing worked out after Tutte's breakthrough.
		Note: Alan Turing did not become the chief figure in the Fish work, and in particular did not design or build the Colossus, as is so often incorrectly stated.
	www.turing.org.uk /turing/scrapbook/electronic.html (1169 words)

	BLETCHLEY PARK - Britain's Best-Kept Secret of World War II
		One of its tasks was to crack the German coding machine, Enigma which was being used to carry the secret signals between the topmost enemy commands.
		That information is readily accessible in a growing number of books, of which Winterbotham’s was the first, in articles in various journals and on the internet (some of which contain some surprising inaccuracies!) and, of course, at the fascinating exhibition at Bletchley Park.
		Note: 'Ultra' was the code name applied to the 'product of the decryption of the more important enemy ciphers' during World War II.
	www.colindaylinks.com /bletchley/index.html (754 words)

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