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Date: Sun, 18 Jul 1999 22:22:55 -0700 To: cryptography@c2.net From: Bill Stewart <bill.stewart@pobox.com> Cc: John Denker <jsd@research.att.com> In-Reply-To: <379238F7.5D17CF9F@algroup.co.uk> At 09:28 PM 7/18/99 +0100, Ben Laurie wrote: >The obvious way to solve the underlying problem, as I've already said, >is to use hashcash. >Cheers, > >Ben. Hashcash is interesting in general environments - forcing the initiator of a transaction to burn some CPU keeps them from swamping you with attempts. But the various ipsec key exchange protocols aren't going to provide a handle for including it. (Too bad - you could also toss the hashcash into the entropy pool :-) Thanks! Bill Bill Stewart, bill.stewart@pobox.com PGP Fingerprint D454 E202 CBC8 40BF 3C85 B884 0ABE 4639
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