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Article #867

Re: User authentication

#867
From: Marc Thibault
Date: Tue, 01 Sep 1992 15:07
35 lines
2034 bytes
In article <1992Aug31.135512.16204@sniap.mchp.sni.de> 
() writes: 
           ...
> 
> What I'm trying to show you is that you will need some 
> proof that I represent IBM (I don't :-)  *before* you will 
> accept my key and set up my/our "RSA account".  The

        Not at all -- many banks provide anonomous accounts. The only
        requirement is a secure authentication mechanism that shows
        whoever is withdrawing funds is the person who opened the
        account in the first place. The usual is a number signed in
        longhand, related to, but not the same as the 'account
        number'.

> original poster was saying that unidentified keys
> are acceptable for groups - they're not, though they
> may be alright for anonymous posting type applications.

    No bank will give you money just because you belong to a depositor
    organisation. You have to be designated and they must have your
    signature on file. If they have your signature, they won't give a
    tinker's dam for your "true identity". This is functionally
    indistinguishable from having the private key to match the public
    key provided by whoever opened the account.

    You may not have noticed the last time you opened an account, but
    I'll bet no one asked you for any proof of identity.

        ,Marc

---
 Marc Thibault        |                              |  Any Warming,
 marc@tanda.isis.org  |  Oxford Mills, Ontario       |  Global or otherwise,
 CIS:71441,2226       |     Canada                   |   appreciated.
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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!torn!cunews!revcan!micor!uuisis!tanda!marc
References: <6002@transfer.stratus.com> <1992Aug31.135512.16204@sniap.mchp.sni.de>

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From: marc@tanda.isis.org (Marc Thibault)
Reply-To: marc@tanda.isis.org
Newsgroups: sci.crypt
Subject: Re: User authentication
Message-ID: <104729351DN5.61R@tanda.isis.org>
References: <6002@transfer.stratus.com> <1992Aug31.135512.16204@sniap.mchp.sni.de>
Date: Tue, 01 Sep 92 11:07:06 EDT
Distribution: na
Organization: Thibault & Friends
Lines: 31