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Re: Bi-directional payment channels


I'm not sure what you mean by "at a lower height"...there isn't really any
way to revoke transactions, in the sense that you want, that I'm aware of.

On Tue, Aug 22, 2017 at 06:21:25PM +0100, Quirinus Quirrell wrote:
> I was looking at payment channels in mimblewimble and I wasnt clear if they
> could be bi-directional, by revoking transactions. The whitepaper talks
> about increase value v.
> I think a transaction in a channel could just be revoked by B signing a new
> return transaction, but at a lower height than the transaction being
> revoked. New transactions that A signs would be at a decreasing height.
> Publishing spends would have to be timed carefully, and the size of the
> channel would gradually shorten, but they have to close anyway...
> Q

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Andrew Poelstra
Mathematics Department, Blockstream
Email: apoelstra at wpsoftware.net
Web:   https://www.wpsoftware.net/andrew

"A goose alone, I suppose, can know the loneliness of geese
 who can never find their peace,
 whether north or south or west or east"
       --Joanna Newsom

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