From: Gordon Burditt on 29 Jun 2010 15:00 >The cryptography of sporadic mapping of plaintext to wildly disparate From dictionary.com: sporadic: appearing or happening at irregular intervals in time; occasional; appearing in scattered or isolated instances, as a disease isolated, as a single instance of something, being or occurring apart from others. occurring singly or widely apart in locality I suggest that this means the mapping above is often forgotten and text is accidentally or on purpose sent as plaintext, as in hallucinogen-based cryptography. (No, I do not know who adacrypt's supplier is. And I don't want to know.) >integer points in space that I am promoting on my website >http://www.adacrypt.com >has one or two ?sinister? points that are worth noting. Mathematician From dictionary.com: sinister: threatening or portending evil, harm, or trouble; ominous bad, evil, base, or wicked; fell unfortunate, disastrous, unfavorable of or on the left side; left; That sounds like adacrypt's cryptography, all right, but I don't think he's intending to use a real definition of "sinister" that anyone else uses. >The encryption transformation in this spatial crypto type is from a >character in ASCII to an integer point in space that is defined by the >coordinates of a position vector that mark its position on a directed >number line in space. The position vector is given a reversible >change-of-origin before it is ascribed as the cipher text >corresponding to that plaintext. >That is the backbone of the one-way >function that underpins this cryptography. This is not using the normal definition of "one-way function", which is (from Wikipedia) a function which is easy to compute on any input, but which is hard to invert given the image of a random input. (Example: cryptographic hashes, which aren't invertable, key or not) That definition says nothing about there being a key which allows you to reverse it easily.
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