Re: [bitcoin-dev] Concrete MATT opcodes

2023-08-14 Thread symphonicbtc via bitcoin-dev
> I think cross-input inspection (not cross-input signature aggregation which > is different) is opening a pandora box in terms of "malicious" off-chain > contracts than one could design. E.g miners bribing contracts to censor the > confirmation of time-sensitive lightning channel transactions,

Re: [bitcoin-dev] Blinded 2-party Musig2

2023-08-14 Thread Lloyd Fournier via bitcoin-dev
Hi Tom, Thanks for the explanation. There's one remaining thing that isn't clear: do you actually require parallel signing requests under the same key. It seems to me that the protocol is very sequential in that you are passing a utxo from one point to another in sequence. If so then the Schnorr b

Re: [bitcoin-dev] Concrete MATT opcodes

2023-08-14 Thread Antoine Riard via bitcoin-dev
Hi Salvatore, > This also allows inspection of other inputs, that was not possible with the original opcodes. I think cross-input inspection (not cross-input signature aggregation which is different) is opening a pandora box in terms of "malicious" off-chain contracts than one could design. E.g m