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Topic: Kerckhoffs law

	Kerckhoffs' law information - Search.com
		Not to be confused with Kirchhoff's circuit laws.
		In cryptography, Kerckhoffs' law (also called Kerckhoffs' assumption, axiom or principle) was stated by Auguste Kerckhoffs in the 19th century: a cryptosystem should be secure even if everything about the system, except the key, is public knowledge.
		The law was one of six design principles laid down by Kerckhoffs for military ciphers.
	www.search.com /reference/Kerckhoffs'_law?redir=1 (603 words)

	List of eponymous laws - Wikipedia, the free encyclopedia
		Charles's law states that at constant pressure, the volume of a given mass of a gas increases or decreases by the same factor as its temperature (in kelvins) increases or decreases.
		Faraday's law of electrolysis states that the mass of a substance produced at an electrode during electrolysis is proportional to the number of moles of electrons transferred at that electrode; again named for Michael Faraday.
		Fourier's law, also known as the 'law of heat conduction states that the time rate of heat flow Q through a slab (or a portion of a perfectly insulated wire, as shown in the figure) is proportional to the gradient of temperature difference; named for Joseph Fourier.
	en.wikipedia.org /wiki/List_of_eponymous_laws (2862 words)

	Kerckhoffs' law
		In security engineering, Kerckhoffs' law (also called Kerckhoffs' assumption or Kerckhoffs' principle) was stated by Auguste Kerckhoffs in the 19th Century: A cryptosystem[?] should be designed to be secure if everything is known about it except the key information.
		Kerckhoffs' principle was one of six design principles laid down by Kerchoffs for military ciphers.
		Finally, it is necessary, seeing the circumstances that the application commands, that the system be easy to use, requiring neither mental strain nor the knowledge of a long series of rules to observe.
	www.ebroadcast.com.au /lookup/encyclopedia/ke/Kerckhoff's_principle.html (343 words)

	Kerckhoffs Second Law - Auguste Kerckhoffs (Site not responding. Last check: 2007-10-28)
		Dr Auguste Kerckhoffs (19 January 1835 - 1903) was a Flemish linguist and cryptographer who was professor of languages at the School of Higher Commercial Studies in Paris in the late 19th century.
		Of all his work, the most well-known is the second of his six principles: that the security of a cryptosystem must depend only on the key (cryptography), and not on the secrecy of any other part of the system.
		Kerckhoffs law is, in essence, the position that cryptography should be secure even against an opponent who has done such things, or alternatively, that security by obscurity is insufficient in cryptography.
	mywebpage.netscape.com /Abell9583/auguste-kerckhoffs-kerckhoffs-second-law.html (305 words)

	Kerckhoffs' principle - Wikipedia, the free encyclopedia
		Not to be confused with Kirchhoff's circuit laws.
		In accordance with Kerckhoffs' principle, the majority of civilian cryptography makes use of publicly-known algorithms.
		The law was one of six design principles laid down by Kerckhoffs for military ciphers.
	en.wikipedia.org /wiki/Kerckhoffs'_law (646 words)

	[No title] (Site not responding. Last check: 2007-10-28)
		Kerckhoffs was the first to publicly identify the weakness of security by obscurity.
		Kerckhoffs was concerned about the "stress of mind" (_tension d'esprit_ in the original French) that complexity creates for crypto users in the field.
		Kerckhoffs' Security Through Usability law should be taught in the universities alongside his admonitions against obscurity.
	www.securius.com /archive/401.txt (1247 words)

	Reference.com/Encyclopedia/Kerckhoffs' principle
		In cryptography, Kerckhoffs' principle (also called Kerckhoffs' assumption, axiom or law) was stated by Auguste Kerckhoffs in the 19th century: a cryptosystem should be secure even if everything about the system, except the key, is public knowledge.
		An example of technology which relies upon a secret cryptosystem is WAPI, the wireless LAN security standard the Chinese government has proposed to encompass civilian uses on a global scale.
		Auguste Kerckhoffs, La cryptographie militaire, Journal des sciences militaires, vol.
	www.reference.com /browse/wiki/Kerckhoffs'_law (661 words)

	Kirchhoff's circuit laws - Wikipedia, the free encyclopedia
		Kirchhoff's circuit laws are a pair of laws that deal with the conservation of charge and energy in electrical circuits, and were first described in 1845 by Gustav Kirchhoff.
		In the presence of a changing magnetic field the electric field is not conservative and it cannot therefore define a pure scalar potential—the line integral of the electric field around the circuit is not zero.
		In order to "fix" Kirchhoff's voltage law for circuits containing inductors, an effective potential drop, or electromotive force (emf), is associated with each inductance of the circuit, exactly equal to the amount by which the line integral of the electric field is not zero by Faraday's law of induction.
	en.wikipedia.org /wiki/Kirchhoff's_circuit_laws (768 words)

	FIPR - Implementing the European Copyright Directive (Site not responding. Last check: 2007-10-28)
		The law should not allow technical devices to be used to alter the statutory bargain in this way, especially where the devices are themselves statutorily protected.
		It amounts to an abuse of the statutory scheme of copyright, and the appropriate response is to withdraw from abusers the benefit of the scheme itself.
		There is legislative precedent for this approach, which is indeed consistent with such equitable maxims of the common law as that he who seeks equity must do equity, and that he who comes to equity must come with clean hands.
	www.fipr.org /copyright/FIPR.html (2910 words)

	Insecurity through obscurity
		However, Auguste Kerckhoffs, a 19th century Flemish cryptographer, said it should be assumed that attackers know the design of the entire security system, except for the keys.
		This concept, known as Kerckhoffs' law, basically rejected the notion of security through obscurity (your key hidden under your potted plant) and suggested that a system should be secure even if everything's public knowledge, except the key.
		Companies and software developers need to start with Kerckhoffs' law, assume that the algorithm and design of the software are known, and design security into the products and software in the beginning instead of retrofitting or patching security holes later.
	www.computerworld.com /printthis/2005/0,4814,102307,00.html (794 words)

	If Cisco ignored Kerckhoffs's Law, users will pay the price [LWN.net]
		The iron rule is Kerckhoffs's Law, which states[1] "A cryptosystem
		it passes the Kerckhoffs test -- open source keeps you honest that way.
		Millions of Linux users already know the answer is yes.
	lwn.net /Articles/85958 (467 words)

	Kirchhoff's Second Law (Site not responding. Last check: 2007-10-28)
		Kirchhoff's second law when officially stated (see insert at the right) sounds more complicated than it actually is. Generally speaking, it says, around any loop in a circuit, the voltage rises must equal the voltage drops.
		Another way of thinking about this is to consider that whatever energy a charge starts with in a circuit loop, it must end up losing all that energy by the time it gets to the end.
		Again, Kirchhoff's 2nd law says the sum of the potential differences has to be zero.
	www.regentsprep.org /Regents/physics/phys03/bkirchof2/default.htm (289 words)

	Security Through Usability (Site not responding. Last check: 2007-10-28)
		In 1883, Flemish linguist Auguste Kerckhoffs published a groundbreaking article on military cryptography that is still widely cited for its admonishments against what is now known as "security by obscurity".
		In his seminal publication, "La cryptographie militaire", Kerckhoffs actually presents five other laws as well.[5] In general, these have received a lot less attention.
		Here are all six of Kerckhoffs' Laws (thanks to Fabien A. Petitcolas for the translation)[6]:
	www.securius.com /newsletters/Security_Through_Usability.html (1158 words)

	Kirchoff's Laws
		To be able to view the math in this document, use the PDF version, or please consider using another browser, such as Mozilla, Netscape 7 or above or Microsoft Internet Explorer 6 or above (MathPlayer required for IE).
		What this law means physically is that charge cannot accumulate in a node; what goes in must come out.
		The voltage law says that the sum of voltages around every closed loop in the circuit must equal zero.
	cnx.rice.edu /content/m0015/latest (465 words)

	Basic DC Theory
		Kirchoff's voltage and current laws are also a basic prerequisite for circuit analysis.
		Kirchoff's current law simply states that the sum of currents flowing into a junction equals the sum of currents flowing away from the junction.
		Using ohms law, the current through the 10 ohm resistor (V/R) is then 1 amp.
	www.mitedu.freeserve.co.uk /Theory/basicdc.htm (588 words)

	3.8:Kirchoff's Voltage Law
		There is only one drop (the 1.5 V drop across the resistor), and there is only one rise (the 1.5 V rise across the battery).
		Therefore, Kirchoff's Voltage Law (KVL) is satisfied in our circuit.
		Often, we may only know the current flowing through a part of the circuit, and we wish to calculate the voltage drop across that portion of the circuit.
	campus.murraystate.edu /tsm/tsm118/Ch3/Ch3_8/Ch3_8.htm (254 words)

	Kerckhoffs' law (Site not responding. Last check: 2007-10-28)
		In security engineering, Kerckhoffs' law (also called Kerckhoffs' assumption or Kerckhoffs' principle) was stated by Auguste Kerckhoffs in the 19th Century:
		A cryptosystem should be designed to be secure if everything is known about it except the key information.
		Since the advent of open source software development, these principles have increasingly been used to ground arguments for it (and against security through obscurity).
	www.codextool.com /htdocs/kerckhoffs.htm (355 words)

	Kirchoff's Law
		Kirchoff's voltage law says that the sum of the voltage drops around any closed loop in the network must equal zero.
		A closed loop has the obvious definition: starting at a node, trace a path through the circuit that returns you to the original starting node.
		When Kirchoff's voltage law is applied, we obtain the following linear system of equations.
	math.fullerton.edu /mathews/n2003/KirchoffMod.html (208 words)

	Auguste Kerckhoffs
		A 19th century Flemish cryptographer best known for enunciating Kerckhoffs' law, the principle that the security of a cryptosystem must depend only on the key, not on the secrecy of any other part of the system.
		In war, the enemy will have spies and will capture and analyse your equipment.
		In short, security by obscurity does not work.
	www.ebroadcast.com.au /lookup/encyclopedia/au/Auguste_Kerckhoffs.html (109 words)

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