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Article #740Re: Using Public-Key Encryption for Copy-Protecting Software
From: Csd1519
Date: Fri, 17 Apr 1992 19:41
Date: Fri, 17 Apr 1992 19:41
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In article <MdrtruK00hYoQpYlJx@andrew.cmu.edu> dh10+@andrew.cmu.edu (David Christian Homan) writes: > >> I would like to discuss the technical issues involved in using public-key >> encryption as a method to copy-protect software. I am also starting a >> thread on comp.sys.next.misc to discuss whether using this type of >> copy-protection is a go .... [details deleted] > >Just remember that the RSA algorithm is patented and can't be used. > It may be patented, but is RSA the only public-key cryptosystem in existence? I know RSA is no secret because I'm looking at it right in my data structures class textbook, "Introduction to Algorithms" bu Cormen, Leiserson, Rivest-- chapter 33, page 831). I've also have code for its implementation (written in BASIC no less) out of the 'Hackerbibel' by the Chaos Computer Club. Given all of this, I still haven't implemented it in C for my unix mail; guess I'm just too lazy. :-) Arnim Sauerbier
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Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!darwin.sura.net!mips!spool.mu.edu!umn.edu!ux.acs.umn.edu!csd1519 From: csd1519@ux.acs.umn.edu (Csd1519) Newsgroups: comp.sys.next.programmer Subject: Re: Using Public-Key Encryption for Copy-Protecting Software Message-ID: <1992Apr17.194103.7993@ux.acs.umn.edu> Date: 17 Apr 92 19:41:03 GMT Article-I.D.: ux.1992Apr17.194103.7993 References: <1992Mar30.223929.22063@Csli.Stanford.EDU> <MdrtruK00hYoQpYlJx@andrew.cmu.edu> Distribution: all Organization: University of Minnesota, Twin Cities Lines: 19