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Re: Digital signature Question
From: Byron Sonne <blsonne () rogers com>
Date: Thu, 06 Nov 2003 16:14:11 -0500

Main Question:  When I hash a message to authenticate it, and then encrypt
the hash result with a private key to make a digital signature, is the
private key I'm using at that point (normally) a shared symmetric private
key or my private key from my private/public key pair?

I'd say it's your private key from from your key pair.

Yeah, sometimes words aren't the best medium for explaining things. If I could locate the nice diagrams in my cisco course materials, I'd scan it in and post it... but maybe these'll help out:

http://www.uic.edu/depts/accc/newsletter/adn26/figure3.html
http://educators.mainfunction.com/Resources/display.asp?page=digital_sign
http://www.state.ma.us/itd/legal/crypto-3.htm
http://www.ecommerce.or.th/APEC-Workshop2002/ppt/slide/john_daly2.pdf

Regards,
Byron

--

        For good, return good. For evil, return justice.


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