[5928] in cryptography@c2.net mail archive

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Re: IBUC hits the road

daemon@ATHENA.MIT.EDU (Anonymous)
Mon Oct 18 20:54:53 1999

Date: Tue, 19 Oct 1999 02:41:13 +0200 (CEST)
Message-Id: <199910190041.CAA11224@sofuku.monster.org>
From: Anonymous <nobody@replay.com>
To: dbs@philodox.com, coderpunks@shipwright.com, cryptography@c2.net,
        dcsb@ai.mit.edu

> Stefan Brands, the man who's written some great digital cash
> protocols, has just published a new book called "Building In Privacy:
> Rethinking public key infrastructures and digital certificates."

Brands' technology is good, but keep in mind that it is well protected
by his patents:

US05696827 Secure cryptographic methods for electronic transfer of information
US05668878 Secure cryptographic methods for electronic transfer of information
US05606617 Secret-key certificates
US05604805 Privacy-protected transfer of electronic information
US05521980 Privacy-protected transfer of electronic information

In their overall effect and purpose Brands' methods are similar to Chaum's
blinded transfers.  Brands is more efficient and elegant, although there
are a few things Chaum can do that Brands can't.  Both men have great
and potentially world-changing technology, but both are holding it tight
in the hopes of making money off it, and so far nothing is happening.


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