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Re: KeyNote

Ron,

	you may be right about the implementation.  I was thinking about something 
else.

	I've been thinking for some time that we should formalize such a naming for 
encryption algorithms, to cut down on some of the relatively valueless 
offerings on sci.crypt (ie., someone presents a "new algorithm" which is 
merely another statement in such a key naming using well known primitives).

	Your proposal fit in with that earlier wish of mine, even though we're
not talking about general encryption algorithms here, only signature verification.

 - Carl


At 05:54 PM 4/5/97 EST, Ron Rivest wrote:
>
>I was thinking of the more functional style early on, but thought you
>(or others) might object to the extra implementation cost, so I
>limited it to one function call per statement.  I still prefer the one
>function call per statement, because of the more complex semantic
>issues that come up with the more general style (e.g. in what order
>are arguments evaluated, what about common subexpressions, how are
>errors handled, etc.).  But if you want to make this work, we can.
>But I think it is important that the sequential style always be an
>option; the functional style you are proposing is basically just
>taking some variable that is only defined once and only used once, and
>moving its definition to its use.  
>
>	Cheers,
>	Ron
>==============================================================================
>To: spki@c2.net
>From: Carl Ellison <cme@cybercash.com>
>Subject: Re: "KeyNote" -- how to describe cryptographic keys.
>Cc: blampson@microsoft.com, burt@rsa.com
>
>At 03:56 PM 4/5/97 -0500, Carl Ellison wrote:
>>	wouldn't it be even clearer to use:
>>
>>	(public-key (let object-hash (md5 object)) 
>>	            (equal object-hash (rsa signature (const &03)(const &0435))))
>
>Or, for that matter,
>
>	(public-key (equal (md5 object) (rsa signature (const &03)(const &0435))))
>
>?
>
>
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+------------------------------------------------------------------+
|Carl M. Ellison  cme@cybercash.com   http://www.clark.net/pub/cme |
|CyberCash, Inc.                      http://www.cybercash.com/    |
|207 Grindall Street   PGP 2.6.2: 61E2DE7FCB9D7984E9C8048BA63221A2 |
|Baltimore MD 21230-4103  T:(410) 727-4288  F:(410)727-4293        |
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