Article View: sci.crypt
Article #3072Re: discussion desired
From: Christopher_C_Lapp
Date: Mon, 11 Jan 1993 02:06
Date: Mon, 11 Jan 1993 02:06
38 lines
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2172 bytes
What is interesting about this article is that the major points raised still assume that a cryptographic system has to be "cryptographic" in the sense that it is a computational algorithm (a computable function) and that because the PGP 2.0 system is not a perfect uncrackable computable function. Here is a perfect non-computable function that would give the ole' Russkis a run for their money. Here are the steps: 1) encrypt a recipe for apple pandowdy using PGP 2.0. 2) Take the raw encrypted file, and make up a table of bit patterns in seqence and map them to a real message. Now, with the mapped table create a computer program that accesses the mapped table at given sequences, and adds a bit-string at the end of the apple pandowdy encrypt which will give the reciever the seqence of bit patterns in the raw encrypt which are relvant to the real message. Here is how it will work: Here is the recipie encrypted in a known algorithm: 011 110 111 110000 Now the real encryption would take this output and map an english database to it. So, say the real message is "This is a pen" and the entry numbers of the words "this" "is" "a" "pen" are written in binary and the string that these binary numbers represent is subracted using binary math from the apple pandowdy encrypt and attached to the applepandowdy encrypt. Thus, somebody with the ould take the applepandowdy encrypt decrypt it, and determine the excess bits, after the decrypt, and mathematically, determine the words from the record numbers produced by adding the applepandowdy encrypt string to the excess string, and dividing the string in to equal 32-bit hunks. The Mita copier on the 26th floor of the McNamara Building needs paper, and also new semiconductors. Chris Lapp.
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Path: arc1-ca.pugleaf.net!sparky!uunet!portal!cup.portal.com!Christopher_C_Lapp From: Christopher_C_Lapp@cup.portal.com Newsgroups: sci.crypt,alt.security.pgp Subject: Re: discussion desired Message-ID: <73335@cup.portal.com> Date: Sun, 10 Jan 93 18:06:57 PST Organization: The Portal System (TM) Distribution: usa References: <1993Jan7.002820.3579@lynx.dac.northeastern.edu> Lines: 38