Re: [Bitcoin-development] Proposal for a new opcode

2012-03-21 Thread Gregory Maxwell
On Wed, Mar 21, 2012 at 6:02 PM, Watson Ladd wrote: > -My protocol works, your's doesn't. It's not enough to have a mix, the > mix needs to be verifiable to avoid > one of the mixers inserting their own key and removing a key that > should be in there. That doesn't mean you can't make your protoco

[Bitcoin-development] Proposal for a new opcode

2012-03-21 Thread Watson Ladd
On Wed, Mar 21, 2012 at 3:54 PM, Gregory Maxwell wrote: > On Fri, Mar 2, 2012 at 2:57 PM, Watson Ladd wrote: >> Dear all, >> I am proposing a new opcode for the purposes of anonymous >> transactions. This new opcode enables scripts to be given proof that >> the receiver can carry out or has carri

Re: [Bitcoin-development] Proposal for a new opcode

2012-03-05 Thread Michael Grønager
Sounds interesting, however, even after a couple of days, I cannot see how you maintain protection against double spend using OP_CHECKEXPSIG. It is not until you redeem the OP_CHECKEXPSIG transaction that you reveal which former transactions that was involved? I guess I am missing a point here?