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	Visual cryptography - Wikipedia, the free encyclopedia
		Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decryption can be performed by humans (without computers).
		The first visual cryptographic technique was pioneered by Moni Naor and Adi Shamir in 1994.
		Moni Naor and Adi Shamir, Visual Cryptography, EUROCRYPT 1994, pp1–12 [1].
	en.wikipedia.org /wiki/Visual_cryptography (149 words)

	Visual cryptography -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-09-18)
		Visual cryptography is a (Click link for more info and facts about cryptographic) cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decryption can be performed by humans (without computers).
		The first visual cryptographic technique was pioneered by Moni Naor and (Click link for more info and facts about Adi Shamir) Adi Shamir in 1994.
		Moni Naor and Adi Shamir, Visual Cryptography, EUROCRYPT 1994, pp1–12.
	www.absoluteastronomy.com /encyclopedia/v/vi/visual_cryptography.htm (149 words)

	WEB-GEEK.COM Computers > Programming > Languages > Visual Basic > Cryptography
		VB Techniques This is a Visual Basic crytography project written by Richard Bondi.
		Cryptography for Visual Basic Using Encryption A resource site for Visual Basic developers interested in implementing cryptography or the CryptoAPI.
		Three Types of Simple Cryptography This is a Visual Basic (versions 5 and 6) crytography project written by Alexander Levakov.
	www.web-geek.com /Computers/Programming/Languages/Visual_Basic/Cryptography/index.html (217 words)

	ScienceDaily -- Browse Topics: Computers/Programming/Languages/Visual_Basic/Cryptography
		Visual Basic Instinct : Cryptography - Explains cryptography from the Visual Basic point of view.
		Cryptography for Visual Basic Using Encryption - A resource site for Visual Basic developers interested in implementing cryptography or the CryptoAPI.
		Three Types of Simple Cryptography - This is a Visual Basic (versions 5 and 6) crytography project written by Alexander Levakov.
	www.sciencedaily.com /directory/Computers/Programming/Languages/Visual_Basic/Cryptography (644 words)

	visual cryptography (talk by Shamir yesterday at MIT). (Site not responding. Last check: 2007-09-18)
		visual cryptography (talk by Shamir yesterday at MIT).
		Subject: visual cryptography (talk by Shamir yesterday at MIT).
		The problem he solved was to create a cryptosystem which is as secure as possible, but can be decoded (with some care) using only the human visual system.
	cypherpunks.venona.com /date/1994/05/msg01054.html (391 words)

	Visual Basic Instinct : Cryptography
		This section is destined to explain cryptography from the VB point of view.
		I have mostly avoided discussion of technical matters in favor of a more general explanation of what I regard as the main things to be understood by someone beginning to use encryption.
		This is a good reference, but it requires you to translate C type declarations to Visual Basic.
	www.vbi.org /Folders/index.asp?id=572 (369 words)

	bondi
		In order to program with cryptography, a programmer must first have a good grasp of the basics of modern cryptography.
		Provide Visual Basic programmers with a set of COM objects that are very intuitive once you understand modern cryptography, and to make the source code freely available (Chapter 5, Appendix B, and the source code on the CDROM).
		This is a brief history of 20th century cryptography and surveillance policy in the United States.
	www.cryptovb.com /books/bondi/bondi.html (556 words)

	Visual Encryptor: program download page (Site not responding. Last check: 2007-09-18)
		Before you open the workspace, store the file Toolbar.bmp, in a folder named "res" that is in the same working directory as the the rest of the source files.
		Visual Encryptor allows a user to create the shares for a visual cryptography scheme on any of the following access structures (with at most 9 participants): (2,2)-threshold VCS, (2,n)-threshold VCS, (n,n)-threshold VCS, (k,n)-threshold VCS, or a general access structure (defined by the minimal qualified sets of participants).
		Each of the algorithms used in implementing these schemes was derived from the articles on Visual Cryptography by Doug Stinson, posted on his website at http://www.cacr.math.uwaterloo.ca/~dstinson/visual.html.
	compsci.snc.edu /cs460_archive/2003/busspr/VisualEncryptor.html (1810 words)

	Bokler Software's Cryptographic Resources Page
		While conceptually straightforward, cryptography sees widespread use today in a variety of specialized applications which employ various protocols and ancillary functions to meet their unique security requirements.
		A fairly common misconception is that symmetric key cryptography has been rendered "obsolete" by the recent (1976) introduction of public key cryptography.
		The most outspoken proponents of restrictions on domestic use of cryptography appear to be in law enforcement (in fact they may be the only proponents).
	www.bokler.com /resrcs_1.html (2064 words)

	Doug Stinson's Visual Cryptography Page
		Visual cryptography was introduced by Naor and Shamir at EUROCRYPT '94.
		I published an introductory article on visual cryptography in the April 1998 issue of Dr.
		The slides for the most recent version of the talk are available here, in the form of a postscript file.
	www.cacr.math.uwaterloo.ca /~dstinson/visual.html (658 words)

	Cryptography Software Code in Visual Basic and C
		Using keys in cryptography a brief introduction to keys and passwords in cryptography.
		Using padding in cryptography a 'how to' article decribing everything you need to know about padding with encryption algorithms.
		This is an original Visual Basic version of Bruce Schneier's Blowfish algorithm as detailed in "Applied Cryptography", 2nd edition, 1996.
	www.di-mgt.com.au /crypto.html (4266 words)

	On the Contrast in Visual Cryptography Schemes - Blundo, De Santis (ResearchIndex) (Site not responding. Last check: 2007-09-18)
		Abstract: A visual cryptography scheme is a method to encode a secret image SI into shadow images called shares such that certain qualified subsets of shares enable the "visual" recovery of the secret image.
		In this paper we analyze the contrast of the reconstructed image in k out of n visual cryptography...
		Visual Cryptography for General Access Structures - Ateniese, Blundo, De Santis,..
	citeseer.lcs.mit.edu /blundo96contrast.html (657 words)

	Crytographic tools for Visual Basic
		I wrote it because visual basic is the by far the fastest way of creating a certain kind of program with a reasonably acceptable user interface.
		For the purposes of elliptic curve cryptography x and y will not be real numbers but will be finite fields, typically integers modulo some quantity.
		The visual basic demo illustrating how to use this code was removed, because I chose not to maintain it, after the dll code had stabilized.
	www.echeque.com /Kong/tools.htm (1676 words)

	Cryptologia: Recursive hiding of secrets in visual cryptography
		A popular embodiment of a threshold scheme is the method of visual cryptography [4, 5], where the secret image is split into two separate random images called shares.
		For the case of a white pixel, one of the two combinations of subpixels will be chosen with a probability of 0.5 to represent the pixel in each of the shares.
		The two shares of this image are obtained based on the idea of visual cryptography.
	www.24hourscholar.com /p/articles/mi_qa3926/is_200201/ai_n9077806 (1352 words)

	Cryptography Visual Basic Languages Programming Computers English España (Site not responding. Last check: 2007-09-18)
		A useful cryptography library for Visual Basic developers interested in implementing various algorithms.
		This is a Visual Basic crytography project written by Richard Bondi.
		This is a Visual Basic (versions 5 and 6) crytography project written by Alexander Levakov.
	www.amigar.com /buscador/Top/10105871584-10000001 (185 words)

	Visual Cryptography for General Access Structures - Ateniese, Blundo, De Santis, Stinson (ResearchIndex) (Site not responding. Last check: 2007-09-18)
		Abstract: A visual cryptography scheme for a set P of n participants is a method to encode a secret image SI into n shadow images called shares, where each participant in P receives one share.
		Certain qualified subsets of participants can "visually" recover the secret image, but other, forbidden, sets of participants have no information (in an information-theoretic sense) on SI.
		A "visual" recovery for a set X ` P consists of xeroxing the shares given to the participants in X onto transparencies, and...
	citeseer.ist.psu.edu /58195.html (610 words)

	List of cryptography topics - LearnThis.Info Enclyclopedia (Site not responding. Last check: 2007-09-18)
		This page aims to alphabetically list articles that are primarily related to cryptography.
		There is a categorised and (somewhat) annotated list of the same articles in subject groupings at Topics in cryptography; it will probably be more useful to those attempting to make some sense of the field.
		Topics in cryptography — an analytical list of articles and terms.
	encyclopedia.learnthis.info /l/li/list_of_cryptography_topics.html (581 words)

	ComponentSpot Web Directory
		Visual Basic is a Rapid Application Development environment.
		It is well-suited for creating applications and utilities utilizing cryptography implementations and algorithms.
		Creates cryptographic software components for Windows developers; includes the fundamentals of cryptography and inclusion in program code.
	dir.componentspot.com /programming/languages/visual_basic/cryptography (38 words)

	Grey Level Visual Cryptography for General Access Structures (ResearchIndex) (Site not responding. Last check: 2007-09-18)
		Abstract: Visual cryptography, first introduced by Naor and Shamir, allows a secret (fl and white) image to be encoded and distributed to a set of participants such that certain predefined sets of participants may reconstruct the image without any computation.
		In 2000, Blundo, De Santis, and Naor introduced a model for grey-level visual cryptography which is a generalization of visual cryptography for general access structures.
		5 the contrast in visual cryptography schemes - Blundo, De Santis et al.
	citeseer.ist.psu.edu /macpherson02grey.html (290 words)

	VCK: the Visual Cryptography Kit (Site not responding. Last check: 2007-09-18)
		The idea of visual cryptography is a fascinating invention by Moni Naor and Adi Shamir (1994).
		The stroke of genius here is the technique, explained in the poster, by which the boolean operation of "xor" is implemented by means of a visual "or".
		With the building blocks provided by VCK, such as the "bitmap" class and the boolean operations that take bitmaps as arguments, it is a simple matter for anyone to add new primitives in Python to implement any of the many variants of the visual cryptography idea that the cryptological research papers keep bringing out.
	www.foretec.com /python/workshops/1998-11/demosession/stajano2.html (525 words)

	Greyscale and colour visual cryptography
		A visual secret sharing scheme is a type of secret sharing scheme with the special property that a secret image can be recovered visually by the human eye and does not require any calculations on a computer.
		The majority of work that has been done in the area of visual cryptography presents construction methods for schemes that apply to monochromatic images containing only two colours, usually fl and white.
		In this paper, we introduce models and construction methods for greyscale and colour visual secret sharing schemes that preserve the colours of the original secret image more or less intact.
	www.cs.dal.ca /news/def-1396.shtml (341 words)

	CryptoSys cryptography software tools for Visual Basic and C/C++ developers
		It provides four of the major block cipher algorithms, a stream cipher algorithm, three secure hash algorithms, the HMAC message authentication algorithm for all three hash algorithms, a data compression facility, a password-based key derivation function (PBKDF2), and a secure random number generator.
		See a sample Visual Basic project showing how to encrypt variable-length strings 'properly' with a key derived from a text password using the PBKDF2 algorithm from PKCS #5 v2.0.
		For free cryptographic code written by David Ireland, including Blowfish in Visual Basic, a full set of multiple-precision arithmetic routines written in ANSI C, base64 encoding, CRC-16 and CRC-32 routines, the MySecret Blowfish utility, and more, visit DI Management's Cryptography Software Code Page.
	www.cryptosys.net (1272 words)

	Curiosity is bliss: Visual cryptography
		It turns out visual cryptography is a secret sharing scheme where no computer is needed for the decoding.
		Links: Original visual cryptography paper from Moni Naor and Adi Shamir (1995).
		Original visual cryptography paper from Moni Naor and Adi Shamir (1995).
	blog.monstuff.com /archives/000214.html (254 words)

	Computing Awards - Student Project of the Year - vnunet.com (Site not responding. Last check: 2007-09-18)
		The aim of Mokana’s project was to establish a system of authorisation and authentication, especially for credit card transactions, which uses visual cryptography techniques.
		Visual cryptography addresses the difficulty of encrypting any written material and decrypting it with the human eye.
		Visual decrypting also means that no automated programs can guess passwords or try to identify the messages after decryption.
	www.vnunet.com /computing/analysis/2144853/computing-awards-student (1237 words)

	Amazon.com: Cryptography for Visual Basic(r) : A Programmer's Guide to the Microsoft(r) CryptoAPI: Books: Richard Bondi (Site not responding. Last check: 2007-09-18)
		This title will serve as both an introduction to cryptography and a how-to with CryptoAPI by using the author's prebuilt library of COM objects.
		The next section here lays the foundation for working with the Microsoft CryptoAPI by presenting a number of useful strategies for passing (and returning) values to and from C from within VB, along with techniques for error handling and improved performance.
		There is a lot you need to know about cryptography in order to use the CryptoAPI, but even more that you don't.
	www.amazon.com /exec/obidos/tg/detail/-/0471381896?v=glance (1861 words)

	Constructions and Bounds for Visual Cryptography - Ateniese, Blundo, De Santis, Stinson (ResearchIndex) (Site not responding. Last check: 2007-09-18)
		A "visual" recover for a set X ` P consists of stacking together the images associated to participants in X. The participants in a...
		On the Contrast in Visual Cryptography Schemes - Blundo, De Santis, Stinson (1996)
		Ateniese, C. Blundo, A. De Santis, and D. Stinson, Constructions and Bounds for Visual Cryptography, in "23rd International Colloquium on Automata, Languages and Programming" (ICALP '96), F. auf der Heide and B. Monien Eds., "Lecture Notes in Computer Science", Springer--Verlag, Berlin, pp.
	citeseer.lcs.mit.edu /ateniese96constructions.html (474 words)

	Visual Cryptography (Site not responding. Last check: 2007-09-18)
		This problem is the by now classical secret sharing problem (see Doug Stinson's bibliography on secret sharing schemes).
		The twist here is that the thieves's representatives will not have a computer with them when they come to withdraw the money, so they want to be to it visually: each thief gets a transparency.
		The transparency should yield no information about the secret number (even implicitly).
	www.wisdom.weizmann.ac.il /%7Enaor/PUZZLES/visual.html (215 words)

	Visual Studio Magazine - Getting Started - Build a Cryptography Component (Site not responding. Last check: 2007-09-18)
		The.NET Framework now offers a set of classes in the System.Security.Cryptography namespace that makes cryptography accessible to VB and C# programmers (for a brief introduction to the field of cryptography, see the sidebar, "Understand Cryptographic Algorithms").
		Two of the most common data-security tasks you face are authenticating users in applications and securing data from unauthorized access.
		Open Visual Studio.NET to start building your cryptographic component (download the sample code).
	www.fawcette.com /vsm/2003_01/magazine/columns/gettingstarted (329 words)

	Encryption with International Character Sets
		The sender and recipient must have agreed beforehand that this is the convention they are both going to use, or that fact must be passed along with the encrypted message.
		If you are interested in working with us to do such tests and you have a system set up for CJK characters, please contact us.
		Changes to Blowfish in Visual Basic in Version 6.
	www.di-mgt.com /cryptoInternational.html (3179 words)

	ELX.com.au (Australia) - Cryptography For Visual Basic: A Programmer's Guide To The Microsoft Cryptoapi, Bondi - ISBN ... (Site not responding. Last check: 2007-09-18)
		Microsoft's CryptoAPI provides Visual Basic programmers with strong cryptography to keep this data safe, but its internals have been a mystery until now.
		You'll find an in-depth introduction to modern cryptography and learn how to build cryptographic "modules" (COM objects) that can be used by any Visual Basic program.
		Best of all, the source code is included under an Open Source license so that you are free to use, modify, and distribute it, even commercially, without paying any fees.
	www.elx.com.au /item/0471381896 (395 words)

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