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Matt's observation
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At 10:57 AM 3/27/98 -0700, Bob Jueneman wrote:
[about the ease of forgery and illegibility of handwriting]
Bob,
the more illegible (but repeatable) the better. A handwritten signature is
a product of the mind of the signer -- not of the document being signed.
>So handwritten signatures are bound only very loosely (less than 50%
confidence)
>to the signer, and even more loosely to the signed document.
>
>Therefore, commerce as we know it today is impossible, because
>the technology upon which it rests is insecure. :-)
Matt never said that handwriting was unforgeable or that it was good enough
for strong security -- only that it was more tightly bound to the signer
than the document -- while a digital signature is bound tightly to a
document and not at all to the signer -- only to the signing key.
- Carl
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|Carl M. Ellison cme@cybercash.com http://www.clark.net/pub/cme |
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